SmogRank / Episodes / Japan
Japan and South Korea, July 2026
For 10 days, from 16 to 25 July 2026, 205 cities in Japan and South Korea had PM2.5 at least twice their usual for the time of year. The worst reading was Mooka, Tochigi, Japan: 39.1 µg/m³ on 25 July, about 4.6× its usual 8.5. Ended 25 July.
Likely smoke from fires Fires were detected within 300 km of the city on 63% of the counted city-days. Satellites see crop, field and forest fires alike, so this doesn't say which burned.
Cities reached 205 in 2 countries
Days 10 16 to 25 July 2026
Worst day 22 July 109 cities counted
Furthest above usual 6.6× Mitai
Day by day
Play 22 July 109 cities at twice their usual or more
Niimi Asakuchi Kurayoshi Yonago Yasugichō Sakaiminato Onomichi Matsue Mihara Unnan Miyoshi Takehara Niihama Imabari Saijō Ōdachō-ōda Kure Hiroshima Matsuyama Gōtsuchō Iyo Maizuru Hamada Iwakuni Osaka Habikino Hirakata Yanai Kawachi-Nagano Masuda Yawata Yawatahama Hōryūji Uji Hikari Sugai Obama Nara-shi Kudamatsu Uwajima Tenri Kumagawa Ōmihachiman Kōka Tsuruga Kunisaki Nagato Sabae Mine Ube Mikuni Kameyama Hiji Saiki Onoda Ibi Yokkaichi Ōgaki Kaizu Nakatsu Kaga Ono Buzen Mizuho Hashima Motosu Shimonoseki Kanda Yukuhashi Gifu Komatsu Ama Ichinomiya Kitakyushu Kaminoma Kakamigahara Nagoya Handa Sekimachi Matsutō Tagawa Nakama Koga Hita Nōgata Nonoichi Minamichita Chiryū Kanazawa Minokamo Iizuka Anjō Kani Aso Seto Munakata Ukiha Tajimi Tsubata Toki Tanushimarumachi-toyoki Wakasugi Koga Tahara Oyabe Kikuchi Yame Ōzu Ogōri Gero Kasuga Hakui Tonami Fukuoka Tosu Shintomi Mifune Uekimachi-mōno Chikugo Kotō Takaoka Iwashita Kumamoto Himimachi Kanzakimachi-kanzaki Tamana Dodong-ri Yanagawa Maebaru-chūō Ōmuta Imizu Nanao Uto Itoshima Miyazaki Arao Saga Anamizu Honmachi Taku Higashigō Namerikawa Kiso Hitoyoshi Karatsu Ōyanomachi-noboritate Uozu Kashima Iida Nichinan Takeo Moroura Ureshinomachi-shimojuku Iki Imarichō-kō Nyūzen Isahaya Ōmura Kawatana Minamata Matsuura Hondomachi-hondo Kirishima Sasebo Matsumoto Obita Okaya Togitsu Izumi Furukawamen Tomioka Nagasaki Hakuba Suwa Tsushima Saikai Gijang Yeonil Itoigawa Ungsang Kanoya Chikuma Gyeongju Shizuoka Kagoshima Sendai Busan Yangsan Ueda Kushikino Kanbara Kimhae Suzaka Obuse Minamikyushu Saku Cheongsong gun Eisen Kaseda-shirakame Jōetsu Yamanashi Hayang Miryang Saikubo Geoje Changwon Gyeongsan-si Sinhyeon Susono Santyoku Daegu Naesŏ T’aebaek Ōtsuki Changnyeong Donghae City Hwawŏn Tomioka Kunwi Nakanojō Minamiashigara Uenohara Goseong Chichibu Gotō Waegwan Minano Shibukawa Kodamachō-kodamaminami Gumi Sado Minamiuonuma Ōme Numata Yorii Honjō Gangneung Ogawamachi Hannō Morohongō Atsugi Sakai-nakajima Chinju Ebina Nagaoka Akishima Iruma Yokota Ayase Jumunjin Neietsu Minamirinkan Yamato Sakado Machida Sayama Gimcheon Fujisawa Kumagaya Sangju Kiryū Higashi-Matsuyama Menuma Ōta Higashimurayama Fuchū Tokorozawa Kodaira Igusa Kamakura Kawagoe Higashikurume Azamino Gyōda Maki Noborito Pyeongchang Ashikaga Niiza Kōnosu Miura Hanyū Asaka Yokohama Tatebayashi Yokosuka Ageo Kurihama Kazo Shirone Saitama Tokyo Sano Hadong Kawaguchi Kukichūō Gwangyang Niigata Niitsu-honchō Sokcho Yeosu Yeongdong Kasukabe Motona Koga Kameda-honchō Koshigaya Sōka Tateyama Kimitsu Tochigi Kwangyang Minamibōsō Imaichi Kanuma Urayasu Oyama Misato, Saitama Noda Kisarazu Matsudo Bandō Baraki Suncheon Changsu Seirō Kosong Kurye Sodegaura Kashiwa Jōsō Kamagaya Okcheon Shibata Narashino Shimo-tsuma Utsunomiya Kaminokawa Kinzan Ichihara Jinan-gun Nangen Chikusei Chiba Beolgyo Toride Yachiyo Mizunashi Yaita Yotsukaidō Hongch’ŏn Cheongju-si Inzai Sintansin Imsil Daejeon Naka Ajiki Yanggu Mobara Katsuura Chinch'ŏn Ōami Yachimata Narita Nasushiobara Nasukarasuyama Ishioka Tōgane Ichinomiya Jeonju Inashiki Sejong Pubal Ōhara Wanju Boseong Kasama Chuncheon Aizu-Wakamatsu Kōzaki Yangp'yŏng Yŏnmu Hwasun Namsa Damyang Nonsan Yokoshiba Gongju Anseong Hwacheon Sawara Gwangju Cheonan Jangheung Mito Hitachiomiya Sōsa Gapyeong Iksan Shirakawa Hokota Seonghwan Kimje Masan Omigawa Gwangju Hitachi-Naka Buyeo Jangseong Hwado Asan Yonezawa Hanam Naju Yeongam Seongnam-si Buan Namyangju Koch'ang Kōriyama Hitachi Gunsan Yesan Suwon Tsuruoka Haenam Anyang-si Kitaibaraki Yeonggwang Seoul Uijeongbu-si Hongseong Muan Yangju Fukushima Boryeong Hwaseong-si Ponggae-dong Mokpo Sagae Jeju City Tangjin Yamagata Seogwipo Bucheon-si Goyang-si Iwaki Incheon Higashine Shiroishi Seosan Gimpo-si Munsan Taesal-li Ōyauchi Gaigeturi Kawasaki Sinan Kakuda Ōuchi Minami-Sōma Sōma Sakamoto Ganghwa-gun Iwanuma Natori-shi Sendai Yoshioka Tagajō-shi Matsushima Ōsaki Higashimatsushima Wakuya Tome Ishinomaki Pohang Ulsan Nagai Pyeongtaek Kasaoka Guri-si Icheon-si Ansan-si Gwangmyeong Kofu Jungpyong Aihara Cheorwon Wŏnju Shikokuchūō Yongsan-dong Minawa Kamisu Osan Yeoju Iwata Fujiyoshida Tsuchiura Jeongeup Wabu Kan’onjichō Owariasahi Hachiōji Tongyeong Fukuyama Yufu Chungju Yecheon Koesan Higashiosaka Ōtake Okazaki Ikoma Anan Toyama Andong Gion Sōja Kochi Mima Gotemba Tōkai Amagasaki Kuwana Izumo Miyazu Narutochō-mitsuishi Shin’ichi Fujinomiya Hyūga Marugame Ikedachō Yao Nagano Kariya Fukui-shi Youkaichi Yeongju Kurashiki Hadano Chigasaki Higashihiroshima Nagahama Nishio Nishinomiya Nakamura Jōyō Saikū Fuji Hiratsuka Tsukumiura Izunokuni Toyota Nantan Ino Takashima Kawaguchi Shūnan Yoshinogawa Atami Kashihara-shi Fukuchiyama Hikone Ayabe Kashiwara Sandachō Tottori-shi Hayashima Nabari Nankoku Kizugawa Matsusaka Tokoname Kashima-shi Isehara Kamojimachō-jōgejima Kinokawa Zentsujichó Sakura Mungyeong Ōtsu Kyōtango Numazu Gobō Owase Shimoda Toyonaka Iga Suzuka Toyooka Inabe Kosai Kyoto Sakai Minami-Alps Nobeoka Okayama Sukayama Fukuroi Bizen Fuefuki Kikugawa Kusatsu Yae Nisshin Tsu Hamamatsu Hōfu Kōtari Sayama Takayama Ueno-ebisumachi Gamagōri Akashi Himeji Odawara Minato Ikaruga Hekinan Kitahama Tokushima Tondabayashichō Kobe Toba Takanabe Takahashi Kameoka Kishiwada Higashinozoe Iwade Fujieda Hamakita Ise Shimada Kakegawa Takarazuka Tsurusaki Tamano Kakogawachō-honmachi Hiragi Aioi Tatsuno Kuma Shinagawa Shima Izumi Hashimoto Aki Tsuyama Kainan Shimogamo Susaki Kariya Inuyama Shinshiro Kumano Sennan Toyohashi Izumisano Ono Hagi Takatsuki Takamatsu Takinomiya Shingū Hiwasaura Miyakonojō Yono Tanabe Shido Yamaguchi Mie Ōita Beppu Nishiwaki Mooka Kobayashi Sumoto Tonoshō Mitai 13 Jul 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Every measured city in the area, coloured by its PM2.5 that day; a dark ring marks a city at twice its usual or more. Bars: cities counted each day, coloured by their median level. Choose a day or press play; without JavaScript, the days link to that day's world ranking.
How it spread
Jeongeup Jeongeup, 13 July: no reading Jeongeup, 14 July: 10.0 µg/m³ Jeongeup, 15 July: 22.2 µg/m³ Jeongeup, 16 July: 27.0 µg/m³, 2.0× its usual 13.2 Jeongeup, 17 July: 33.3 µg/m³, 2.5× its usual 13.2 Jeongeup, 18 July: 26.3 µg/m³ Jeongeup, 19 July: 9.4 µg/m³ Jeongeup, 20 July: 17.0 µg/m³ Jeongeup, 21 July: 14.7 µg/m³ Jeongeup, 22 July: 14.8 µg/m³ Jeongeup, 23 July: 17.0 µg/m³ Jeongeup, 24 July: 13.3 µg/m³ Jeongeup, 25 July: 10.0 µg/m³ Jeongeup, 26 July: 6.7 µg/m³ Jeongeup, 27 July: 6.6 µg/m³ Jeongeup, 28 July: 7.3 µg/m³ Yeoju Yeoju, 13 July: 15.6 µg/m³ Yeoju, 14 July: 9.7 µg/m³ Yeoju, 15 July: 15.3 µg/m³ Yeoju, 16 July: 30.9 µg/m³, 2.4× its usual 13.0 Yeoju, 17 July: 29.0 µg/m³, 2.2× its usual 13.0 Yeoju, 18 July: 9.0 µg/m³ Yeoju, 19 July: 11.2 µg/m³ Yeoju, 20 July: 11.1 µg/m³ Yeoju, 21 July: 10.4 µg/m³ Yeoju, 22 July: no reading Yeoju, 23 July: 16.1 µg/m³ Yeoju, 24 July: 17.8 µg/m³ Yeoju, 25 July: 14.3 µg/m³ Yeoju, 26 July: 6.4 µg/m³ Yeoju, 27 July: 11.5 µg/m³ Yeoju, 28 July: 18.8 µg/m³ Koesan Koesan, 13 July: 11.2 µg/m³ Koesan, 14 July: 10.3 µg/m³ Koesan, 15 July: 13.3 µg/m³ Koesan, 16 July: 30.4 µg/m³, 2.7× its usual 11.2 Koesan, 17 July: 23.3 µg/m³ Koesan, 18 July: 13.3 µg/m³ Koesan, 19 July: 10.2 µg/m³ Koesan, 20 July: 9.6 µg/m³ Koesan, 21 July: 11.3 µg/m³ Koesan, 22 July: 11.9 µg/m³ Koesan, 23 July: 12.1 µg/m³ Koesan, 24 July: 13.4 µg/m³ Koesan, 25 July: 11.7 µg/m³ Koesan, 26 July: 8.2 µg/m³ Koesan, 27 July: 12.3 µg/m³ Koesan, 28 July: 17.9 µg/m³ Cheorwon Cheorwon, 13 July: 17.2 µg/m³ Cheorwon, 14 July: 10.5 µg/m³ Cheorwon, 15 July: 10.6 µg/m³ Cheorwon, 16 July: 30.4 µg/m³, 2.3× its usual 13.3 Cheorwon, 17 July: 23.2 µg/m³ Cheorwon, 18 July: 11.0 µg/m³ Cheorwon, 19 July: 8.2 µg/m³ Cheorwon, 20 July: 8.7 µg/m³ Cheorwon, 21 July: 8.6 µg/m³ Cheorwon, 22 July: 11.5 µg/m³ Cheorwon, 23 July: 8.8 µg/m³ Cheorwon, 24 July: 16.6 µg/m³ Cheorwon, 25 July: 14.0 µg/m³ Cheorwon, 26 July: 9.1 µg/m³ Cheorwon, 27 July: 9.8 µg/m³ Cheorwon, 28 July: 16.3 µg/m³ Chungju Chungju, 13 July: 14.0 µg/m³ Chungju, 14 July: 9.2 µg/m³ Chungju, 15 July: 11.9 µg/m³ Chungju, 16 July: 28.3 µg/m³, 2.6× its usual 10.9 Chungju, 17 July: 30.1 µg/m³, 2.7× its usual 11.0 Chungju, 18 July: 11.8 µg/m³ Chungju, 19 July: 8.0 µg/m³ Chungju, 20 July: 10.3 µg/m³ Chungju, 21 July: 11.9 µg/m³ Chungju, 22 July: 14.4 µg/m³ Chungju, 23 July: 13.3 µg/m³ Chungju, 24 July: 15.6 µg/m³ Chungju, 25 July: 12.0 µg/m³ Chungju, 26 July: 8.8 µg/m³ Chungju, 27 July: 8.5 µg/m³ Chungju, 28 July: 18.2 µg/m³ Wŏnju Wŏnju, 13 July: 14.8 µg/m³ Wŏnju, 14 July: 7.8 µg/m³ Wŏnju, 15 July: 10.1 µg/m³ Wŏnju, 16 July: 25.8 µg/m³ Wŏnju, 17 July: 30.7 µg/m³, 2.3× its usual 13.1 Wŏnju, 18 July: 7.2 µg/m³ Wŏnju, 19 July: 7.2 µg/m³ Wŏnju, 20 July: no reading Wŏnju, 21 July: 8.8 µg/m³ Wŏnju, 22 July: 9.3 µg/m³ Wŏnju, 23 July: 11.4 µg/m³ Wŏnju, 24 July: 13.8 µg/m³ Wŏnju, 25 July: 10.5 µg/m³ Wŏnju, 26 July: 7.3 µg/m³ Wŏnju, 27 July: 9.3 µg/m³ Wŏnju, 28 July: 17.5 µg/m³ Yecheon Yecheon, 13 July: 16.0 µg/m³ Yecheon, 14 July: 13.3 µg/m³ Yecheon, 15 July: no reading Yecheon, 16 July: 24.9 µg/m³ Yecheon, 17 July: 30.3 µg/m³, 2.7× its usual 11.2 Yecheon, 18 July: 17.6 µg/m³ Yecheon, 19 July: 6.8 µg/m³ Yecheon, 20 July: no reading Yecheon, 21 July: 11.8 µg/m³ Yecheon, 22 July: 15.0 µg/m³ Yecheon, 23 July: 15.5 µg/m³ Yecheon, 24 July: 14.9 µg/m³ Yecheon, 25 July: 12.8 µg/m³ Yecheon, 26 July: 8.8 µg/m³ Yecheon, 27 July: 8.8 µg/m³ Yecheon, 28 July: no reading Mitai Mitai, 13 July: 11.9 µg/m³ Mitai, 14 July: 8.1 µg/m³ Mitai, 15 July: 6.7 µg/m³ Mitai, 16 July: 6.1 µg/m³ Mitai, 17 July: 9.0 µg/m³ Mitai, 18 July: 25.0 µg/m³, 4.6× its usual 5.4 Mitai, 19 July: 28.7 µg/m³, 5.5× its usual 5.2 Mitai, 20 July: 25.4 µg/m³, 4.9× its usual 5.2 Mitai, 21 July: 34.2 µg/m³, 6.6× its usual 5.2 Mitai, 22 July: 26.9 µg/m³, 5.2× its usual 5.2 Mitai, 23 July: 16.2 µg/m³ Mitai, 24 July: 23.3 µg/m³ Mitai, 25 July: 19.5 µg/m³ Mitai, 26 July: 13.2 µg/m³ Mitai, 27 July: 13.5 µg/m³ Mitai, 28 July: 13.9 µg/m³ Mie Mie, 13 July: 15.9 µg/m³ Mie, 14 July: 11.4 µg/m³ Mie, 15 July: 5.1 µg/m³ Mie, 16 July: 9.1 µg/m³ Mie, 17 July: 16.2 µg/m³ Mie, 18 July: 29.3 µg/m³, 3.6× its usual 8.1 Mie, 19 July: 27.1 µg/m³, 3.6× its usual 7.6 Mie, 20 July: 26.2 µg/m³, 3.5× its usual 7.5 Mie, 21 July: 32.4 µg/m³, 4.3× its usual 7.5 Mie, 22 July: 29.2 µg/m³, 3.9× its usual 7.5 Mie, 23 July: 23.3 µg/m³ Mie, 24 July: 25.2 µg/m³, 3.2× its usual 7.9 Mie, 25 July: 18.9 µg/m³ Mie, 26 July: 10.0 µg/m³ Mie, 27 July: 16.3 µg/m³ Mie, 28 July: 15.9 µg/m³ Tottori-shi Tottori-shi, 13 July: 17.9 µg/m³ Tottori-shi, 14 July: 15.6 µg/m³ Tottori-shi, 15 July: 13.9 µg/m³ Tottori-shi, 16 July: 22.4 µg/m³ Tottori-shi, 17 July: 19.5 µg/m³ Tottori-shi, 18 July: 25.4 µg/m³, 2.4× its usual 10.8 Tottori-shi, 19 July: 25.1 µg/m³, 2.4× its usual 10.5 Tottori-shi, 20 July: 24.5 µg/m³ Tottori-shi, 21 July: 31.5 µg/m³, 3.1× its usual 10.3 Tottori-shi, 22 July: 23.5 µg/m³ Tottori-shi, 23 July: 12.9 µg/m³ Tottori-shi, 24 July: 15.0 µg/m³ Tottori-shi, 25 July: 17.1 µg/m³ Tottori-shi, 26 July: 13.3 µg/m³ Tottori-shi, 27 July: 12.1 µg/m³ Tottori-shi, 28 July: 16.1 µg/m³ Kinokawa Kinokawa, 13 July: 20.9 µg/m³ Kinokawa, 14 July: no reading Kinokawa, 15 July: 20.7 µg/m³ Kinokawa, 16 July: 22.4 µg/m³ Kinokawa, 17 July: 28.1 µg/m³ Kinokawa, 18 July: 30.7 µg/m³, 3.2× its usual 9.6 Kinokawa, 19 July: no reading Kinokawa, 20 July: 19.3 µg/m³ Kinokawa, 21 July: no reading Kinokawa, 22 July: no reading Kinokawa, 23 July: no reading Kinokawa, 24 July: no reading Kinokawa, 25 July: 15.8 µg/m³ Kinokawa, 26 July: 14.9 µg/m³ Kinokawa, 27 July: 12.6 µg/m³ Kinokawa, 28 July: 12.0 µg/m³ Beppu Beppu, 13 July: 14.2 µg/m³ Beppu, 14 July: 17.7 µg/m³ Beppu, 15 July: 8.3 µg/m³ Beppu, 16 July: 13.7 µg/m³ Beppu, 17 July: 18.7 µg/m³ Beppu, 18 July: 23.3 µg/m³ Beppu, 19 July: 30.0 µg/m³, 3.5× its usual 8.5 Beppu, 20 July: 21.1 µg/m³ Beppu, 21 July: 35.7 µg/m³, 4.4× its usual 8.2 Beppu, 22 July: 25.5 µg/m³, 3.1× its usual 8.2 Beppu, 23 July: 17.7 µg/m³ Beppu, 24 July: 15.4 µg/m³ Beppu, 25 July: 14.3 µg/m³ Beppu, 26 July: 16.3 µg/m³ Beppu, 27 July: 10.0 µg/m³ Beppu, 28 July: 9.7 µg/m³ Hiwasaura Hiwasaura, 13 July: 24.5 µg/m³ Hiwasaura, 14 July: 25.4 µg/m³ Hiwasaura, 15 July: 33.0 µg/m³ Hiwasaura, 16 July: 29.7 µg/m³ Hiwasaura, 17 July: 26.0 µg/m³ Hiwasaura, 18 July: 23.5 µg/m³ Hiwasaura, 19 July: 19.9 µg/m³ Hiwasaura, 20 July: 25.3 µg/m³, 2.6× its usual 9.8 Hiwasaura, 21 July: 19.0 µg/m³ Hiwasaura, 22 July: 24.0 µg/m³ Hiwasaura, 23 July: 37.4 µg/m³, 4.0× its usual 9.4 Hiwasaura, 24 July: 37.0 µg/m³, 3.9× its usual 9.6 Hiwasaura, 25 July: 29.0 µg/m³, 3.0× its usual 9.6 Hiwasaura, 26 July: 20.3 µg/m³ Hiwasaura, 27 July: 20.6 µg/m³ Hiwasaura, 28 July: 24.8 µg/m³ Ōita Ōita, 13 July: 16.4 µg/m³ Ōita, 14 July: 19.0 µg/m³ Ōita, 15 July: 7.5 µg/m³ Ōita, 16 July: 13.2 µg/m³ Ōita, 17 July: 17.8 µg/m³ Ōita, 18 July: 24.5 µg/m³ Ōita, 19 July: 24.8 µg/m³ Ōita, 20 July: 25.6 µg/m³, 3.2× its usual 8.1 Ōita, 21 July: 34.5 µg/m³, 4.3× its usual 8.1 Ōita, 22 July: 24.5 µg/m³ Ōita, 23 July: 17.7 µg/m³ Ōita, 24 July: 16.6 µg/m³ Ōita, 25 July: 13.7 µg/m³ Ōita, 26 July: 8.6 µg/m³ Ōita, 27 July: 14.6 µg/m³ Ōita, 28 July: 15.5 µg/m³ Tonoshō Tonoshō, 13 July: 16.8 µg/m³ Tonoshō, 14 July: 18.6 µg/m³ Tonoshō, 15 July: no reading Tonoshō, 16 July: 15.9 µg/m³ Tonoshō, 17 July: 20.7 µg/m³ Tonoshō, 18 July: 20.6 µg/m³ Tonoshō, 19 July: 17.3 µg/m³ Tonoshō, 20 July: 20.4 µg/m³ Tonoshō, 21 July: 30.0 µg/m³, 4.3× its usual 7.0 Tonoshō, 22 July: 37.0 µg/m³, 5.2× its usual 7.1 Tonoshō, 23 July: 25.5 µg/m³, 3.6× its usual 7.1 Tonoshō, 24 July: 22.1 µg/m³ Tonoshō, 25 July: 17.7 µg/m³ Tonoshō, 26 July: 15.2 µg/m³ Tonoshō, 27 July: 16.7 µg/m³ Tonoshō, 28 July: 11.5 µg/m³ Shido Shido, 13 July: 13.8 µg/m³ Shido, 14 July: 13.4 µg/m³ Shido, 15 July: 12.6 µg/m³ Shido, 16 July: 13.8 µg/m³ Shido, 17 July: 18.8 µg/m³ Shido, 18 July: 19.2 µg/m³ Shido, 19 July: 16.4 µg/m³ Shido, 20 July: 21.3 µg/m³ Shido, 21 July: 28.7 µg/m³, 3.2× its usual 8.9 Shido, 22 July: 36.9 µg/m³, 4.2× its usual 8.7 Shido, 23 July: 23.0 µg/m³ Shido, 24 July: 24.1 µg/m³ Shido, 25 July: 19.1 µg/m³ Shido, 26 July: 15.0 µg/m³ Shido, 27 July: 16.1 µg/m³ Shido, 28 July: 12.6 µg/m³ Bizen Bizen, 13 July: 17.1 µg/m³ Bizen, 14 July: 16.0 µg/m³ Bizen, 15 July: 13.1 µg/m³ Bizen, 16 July: 15.0 µg/m³ Bizen, 17 July: 20.5 µg/m³ Bizen, 18 July: 19.6 µg/m³ Bizen, 19 July: 17.6 µg/m³ Bizen, 20 July: 18.4 µg/m³ Bizen, 21 July: 27.4 µg/m³, 2.5× its usual 11.0 Bizen, 22 July: 36.8 µg/m³, 3.3× its usual 11.0 Bizen, 23 July: 33.3 µg/m³, 3.1× its usual 10.8 Bizen, 24 July: 17.4 µg/m³ Bizen, 25 July: 18.5 µg/m³ Bizen, 26 July: 12.5 µg/m³ Bizen, 27 July: 13.9 µg/m³ Bizen, 28 July: 15.1 µg/m³ Kariya Kariya, 13 July: 17.8 µg/m³ Kariya, 14 July: 16.7 µg/m³ Kariya, 15 July: 12.9 µg/m³ Kariya, 16 July: 16.0 µg/m³ Kariya, 17 July: 20.7 µg/m³ Kariya, 18 July: 18.2 µg/m³ Kariya, 19 July: 16.9 µg/m³ Kariya, 20 July: 19.4 µg/m³ Kariya, 21 July: 28.4 µg/m³, 2.8× its usual 10.1 Kariya, 22 July: 36.4 µg/m³, 3.8× its usual 9.7 Kariya, 23 July: 34.2 µg/m³, 3.5× its usual 9.7 Kariya, 24 July: 17.5 µg/m³ Kariya, 25 July: 17.8 µg/m³ Kariya, 26 July: 15.5 µg/m³ Kariya, 27 July: 15.1 µg/m³ Kariya, 28 July: 13.2 µg/m³ Tatsuno Tatsuno, 13 July: 18.5 µg/m³ Tatsuno, 14 July: 16.6 µg/m³ Tatsuno, 15 July: 12.7 µg/m³ Tatsuno, 16 July: 15.1 µg/m³ Tatsuno, 17 July: 19.6 µg/m³ Tatsuno, 18 July: 17.6 µg/m³ Tatsuno, 19 July: 16.6 µg/m³ Tatsuno, 20 July: 19.8 µg/m³ Tatsuno, 21 July: 27.5 µg/m³, 2.8× its usual 10.0 Tatsuno, 22 July: 36.3 µg/m³, 3.7× its usual 9.9 Tatsuno, 23 July: 31.8 µg/m³, 3.2× its usual 9.8 Tatsuno, 24 July: 18.0 µg/m³ Tatsuno, 25 July: 16.9 µg/m³ Tatsuno, 26 July: 15.3 µg/m³ Tatsuno, 27 July: 14.2 µg/m³ Tatsuno, 28 July: 13.7 µg/m³ Aioi Aioi, 13 July: 18.3 µg/m³ Aioi, 14 July: 17.6 µg/m³ Aioi, 15 July: 13.1 µg/m³ Aioi, 16 July: 16.4 µg/m³ Aioi, 17 July: 21.6 µg/m³ Aioi, 18 July: 17.9 µg/m³ Aioi, 19 July: 16.9 µg/m³ Aioi, 20 July: 21.2 µg/m³ Aioi, 21 July: 29.3 µg/m³, 2.8× its usual 10.3 Aioi, 22 July: 36.2 µg/m³, 3.7× its usual 9.8 Aioi, 23 July: 34.9 µg/m³, 3.6× its usual 9.8 Aioi, 24 July: 18.5 µg/m³ Aioi, 25 July: 17.7 µg/m³ Aioi, 26 July: 14.9 µg/m³ Aioi, 27 July: 14.3 µg/m³ Aioi, 28 July: 13.4 µg/m³ Ono Ono, 13 July: 20.4 µg/m³ Ono, 14 July: 17.9 µg/m³ Ono, 15 July: 13.3 µg/m³ Ono, 16 July: 18.3 µg/m³ Ono, 17 July: 18.1 µg/m³ Ono, 18 July: 18.8 µg/m³ Ono, 19 July: 17.2 µg/m³ Ono, 20 July: 19.5 µg/m³ Ono, 21 July: 30.0 µg/m³, 3.2× its usual 9.5 Ono, 22 July: 35.0 µg/m³, 3.9× its usual 9.0 Ono, 23 July: 22.4 µg/m³ Ono, 24 July: 17.5 µg/m³ Ono, 25 July: 16.8 µg/m³ Ono, 26 July: 15.9 µg/m³ Ono, 27 July: 10.7 µg/m³ Ono, 28 July: 12.5 µg/m³ Kakogawachō-honmachi Kakogawachō-honmachi, 13 July: 19.8 µg/m³ Kakogawachō-honmachi, 14 July: 16.6 µg/m³ Kakogawachō-honmachi, 15 July: 14.6 µg/m³ Kakogawachō-honmachi, 16 July: 17.2 µg/m³ Kakogawachō-honmachi, 17 July: 17.8 µg/m³ Kakogawachō-honmachi, 18 July: 18.3 µg/m³ Kakogawachō-honmachi, 19 July: 16.5 µg/m³ Kakogawachō-honmachi, 20 July: 19.6 µg/m³ Kakogawachō-honmachi, 21 July: 29.7 µg/m³, 3.0× its usual 9.8 Kakogawachō-honmachi, 22 July: 34.4 µg/m³, 3.6× its usual 9.6 Kakogawachō-honmachi, 23 July: 22.7 µg/m³ Kakogawachō-honmachi, 24 July: 16.3 µg/m³ Kakogawachō-honmachi, 25 July: 17.0 µg/m³ Kakogawachō-honmachi, 26 July: 15.8 µg/m³ Kakogawachō-honmachi, 27 July: 13.8 µg/m³ Kakogawachō-honmachi, 28 July: 13.3 µg/m³ Shimogamo Shimogamo, 13 July: 15.0 µg/m³ Shimogamo, 14 July: 11.6 µg/m³ Shimogamo, 15 July: 10.8 µg/m³ Shimogamo, 16 July: 12.9 µg/m³ Shimogamo, 17 July: 17.7 µg/m³ Shimogamo, 18 July: 21.0 µg/m³ Shimogamo, 19 July: 18.8 µg/m³ Shimogamo, 20 July: 19.7 µg/m³ Shimogamo, 21 July: 26.9 µg/m³, 2.9× its usual 9.3 Shimogamo, 22 July: 34.3 µg/m³, 3.8× its usual 9.1 Shimogamo, 23 July: 15.5 µg/m³ Shimogamo, 24 July: 12.9 µg/m³ Shimogamo, 25 July: 12.7 µg/m³ Shimogamo, 26 July: 9.2 µg/m³ Shimogamo, 27 July: 11.7 µg/m³ Shimogamo, 28 July: 12.0 µg/m³ Kobayashi Kobayashi, 13 July: 13.6 µg/m³ Kobayashi, 14 July: 9.0 µg/m³ Kobayashi, 15 July: 8.2 µg/m³ Kobayashi, 16 July: 8.2 µg/m³ Kobayashi, 17 July: 10.4 µg/m³ Kobayashi, 18 July: 18.7 µg/m³ Kobayashi, 19 July: 17.4 µg/m³ Kobayashi, 20 July: 19.7 µg/m³ Kobayashi, 21 July: 31.9 µg/m³, 5.1× its usual 6.2 Kobayashi, 22 July: 27.2 µg/m³, 4.3× its usual 6.3 Kobayashi, 23 July: 19.4 µg/m³ Kobayashi, 24 July: 24.5 µg/m³ Kobayashi, 25 July: 33.5 µg/m³, 4.9× its usual 6.8 Kobayashi, 26 July: 17.9 µg/m³ Kobayashi, 27 July: 24.0 µg/m³ Kobayashi, 28 July: 18.5 µg/m³ Nishiwaki Nishiwaki, 13 July: 20.5 µg/m³ Nishiwaki, 14 July: 18.8 µg/m³ Nishiwaki, 15 July: 13.3 µg/m³ Nishiwaki, 16 July: 17.8 µg/m³ Nishiwaki, 17 July: 18.7 µg/m³ Nishiwaki, 18 July: 18.1 µg/m³ Nishiwaki, 19 July: 17.5 µg/m³ Nishiwaki, 20 July: 19.4 µg/m³ Nishiwaki, 21 July: 30.0 µg/m³, 3.9× its usual 7.6 Nishiwaki, 22 July: 33.2 µg/m³, 4.5× its usual 7.4 Nishiwaki, 23 July: 21.3 µg/m³ Nishiwaki, 24 July: 15.5 µg/m³ Nishiwaki, 25 July: 16.8 µg/m³ Nishiwaki, 26 July: 14.7 µg/m³ Nishiwaki, 27 July: 11.5 µg/m³ Nishiwaki, 28 July: 13.1 µg/m³ Ikaruga Ikaruga, 13 July: 17.1 µg/m³ Ikaruga, 14 July: 16.5 µg/m³ Ikaruga, 15 July: 12.9 µg/m³ Ikaruga, 16 July: 15.7 µg/m³ Ikaruga, 17 July: 20.4 µg/m³ Ikaruga, 18 July: 17.8 µg/m³ Ikaruga, 19 July: 16.5 µg/m³ Ikaruga, 20 July: 19.4 µg/m³ Ikaruga, 21 July: 28.3 µg/m³, 2.9× its usual 9.6 Ikaruga, 22 July: 32.6 µg/m³, 3.4× its usual 9.5 Ikaruga, 23 July: 31.2 µg/m³, 3.3× its usual 9.5 Ikaruga, 24 July: 19.2 µg/m³ Ikaruga, 25 July: 17.3 µg/m³ Ikaruga, 26 July: 16.2 µg/m³ Ikaruga, 27 July: 15.7 µg/m³ Ikaruga, 28 July: 12.7 µg/m³ Tsuyama Tsuyama, 13 July: 12.2 µg/m³ Tsuyama, 14 July: 13.9 µg/m³ Tsuyama, 15 July: 13.1 µg/m³ Tsuyama, 16 July: 15.1 µg/m³ Tsuyama, 17 July: 19.0 µg/m³ Tsuyama, 18 July: 20.6 µg/m³ Tsuyama, 19 July: 16.6 µg/m³ Tsuyama, 20 July: 18.4 µg/m³ Tsuyama, 21 July: 28.4 µg/m³, 3.1× its usual 9.1 Tsuyama, 22 July: 32.5 µg/m³, 3.8× its usual 8.6 Tsuyama, 23 July: 15.7 µg/m³ Tsuyama, 24 July: 12.6 µg/m³ Tsuyama, 25 July: 12.7 µg/m³ Tsuyama, 26 July: 9.6 µg/m³ Tsuyama, 27 July: 11.7 µg/m³ Tsuyama, 28 July: 12.3 µg/m³ Higashinozoe Higashinozoe, 13 July: 18.8 µg/m³ Higashinozoe, 14 July: 16.3 µg/m³ Higashinozoe, 15 July: 14.6 µg/m³ Higashinozoe, 16 July: 18.6 µg/m³ Higashinozoe, 17 July: 18.3 µg/m³ Higashinozoe, 18 July: 17.6 µg/m³ Higashinozoe, 19 July: 17.0 µg/m³ Higashinozoe, 20 July: 18.0 µg/m³ Higashinozoe, 21 July: 29.0 µg/m³, 3.0× its usual 9.6 Higashinozoe, 22 July: 32.4 µg/m³, 3.5× its usual 9.3 Higashinozoe, 23 July: 27.7 µg/m³, 2.9× its usual 9.4 Higashinozoe, 24 July: 17.1 µg/m³ Higashinozoe, 25 July: 18.0 µg/m³ Higashinozoe, 26 July: 16.5 µg/m³ Higashinozoe, 27 July: 14.3 µg/m³ Higashinozoe, 28 July: 14.7 µg/m³ Hayashima Hayashima, 13 July: 17.5 µg/m³ Hayashima, 14 July: 17.7 µg/m³ Hayashima, 15 July: 11.4 µg/m³ Hayashima, 16 July: 14.3 µg/m³ Hayashima, 17 July: 20.3 µg/m³ Hayashima, 18 July: 20.6 µg/m³ Hayashima, 19 July: 18.1 µg/m³ Hayashima, 20 July: 21.5 µg/m³ Hayashima, 21 July: 27.8 µg/m³, 2.6× its usual 10.6 Hayashima, 22 July: 32.1 µg/m³, 3.1× its usual 10.4 Hayashima, 23 July: 22.8 µg/m³ Hayashima, 24 July: 16.0 µg/m³ Hayashima, 25 July: 15.6 µg/m³ Hayashima, 26 July: 12.8 µg/m³ Hayashima, 27 July: 15.0 µg/m³ Hayashima, 28 July: 14.3 µg/m³ Tamano Tamano, 13 July: 12.6 µg/m³ Tamano, 14 July: 13.9 µg/m³ Tamano, 15 July: 9.1 µg/m³ Tamano, 16 July: 12.8 µg/m³ Tamano, 17 July: 18.2 µg/m³ Tamano, 18 July: 19.4 µg/m³ Tamano, 19 July: 16.8 µg/m³ Tamano, 20 July: 19.8 µg/m³ Tamano, 21 July: 26.5 µg/m³, 2.9× its usual 9.0 Tamano, 22 July: 32.1 µg/m³, 3.6× its usual 9.0 Tamano, 23 July: 22.0 µg/m³ Tamano, 24 July: 18.0 µg/m³ Tamano, 25 July: 16.8 µg/m³ Tamano, 26 July: 14.0 µg/m³ Tamano, 27 July: 17.1 µg/m³ Tamano, 28 July: 11.9 µg/m³ Hiragi Hiragi, 13 July: 11.8 µg/m³ Hiragi, 14 July: 11.5 µg/m³ Hiragi, 15 July: 7.7 µg/m³ Hiragi, 16 July: 11.6 µg/m³ Hiragi, 17 July: 15.4 µg/m³ Hiragi, 18 July: 19.9 µg/m³ Hiragi, 19 July: 16.0 µg/m³ Hiragi, 20 July: 20.3 µg/m³ Hiragi, 21 July: 27.9 µg/m³, 3.2× its usual 8.7 Hiragi, 22 July: 31.6 µg/m³, 3.7× its usual 8.6 Hiragi, 23 July: 19.5 µg/m³ Hiragi, 24 July: 18.8 µg/m³ Hiragi, 25 July: 16.1 µg/m³ Hiragi, 26 July: 12.2 µg/m³ Hiragi, 27 July: 12.9 µg/m³ Hiragi, 28 July: 9.9 µg/m³ Okayama Okayama, 13 July: 15.0 µg/m³ Okayama, 14 July: 16.1 µg/m³ Okayama, 15 July: 10.9 µg/m³ Okayama, 16 July: 14.0 µg/m³ Okayama, 17 July: 20.0 µg/m³ Okayama, 18 July: 19.5 µg/m³ Okayama, 19 July: 16.1 µg/m³ Okayama, 20 July: 18.6 µg/m³ Okayama, 21 July: 26.4 µg/m³, 2.8× its usual 9.6 Okayama, 22 July: 31.5 µg/m³, 3.3× its usual 9.5 Okayama, 23 July: 23.7 µg/m³ Okayama, 24 July: 16.5 µg/m³ Okayama, 25 July: 15.4 µg/m³ Okayama, 26 July: 12.4 µg/m³ Okayama, 27 July: 13.5 µg/m³ Okayama, 28 July: 13.4 µg/m³ Sandachō Sandachō, 13 July: 19.8 µg/m³ Sandachō, 14 July: 16.0 µg/m³ Sandachō, 15 July: 13.0 µg/m³ Sandachō, 16 July: 16.6 µg/m³ Sandachō, 17 July: 16.9 µg/m³ Sandachō, 18 July: 18.6 µg/m³ Sandachō, 19 July: 15.5 µg/m³ Sandachō, 20 July: 17.4 µg/m³ Sandachō, 21 July: 26.7 µg/m³, 2.6× its usual 10.2 Sandachō, 22 July: 31.0 µg/m³, 3.1× its usual 10.0 Sandachō, 23 July: 21.1 µg/m³ Sandachō, 24 July: 15.1 µg/m³ Sandachō, 25 July: 14.7 µg/m³ Sandachō, 26 July: 13.8 µg/m³ Sandachō, 27 July: 8.7 µg/m³ Sandachō, 28 July: 11.8 µg/m³ Mima Mima, 13 July: 13.8 µg/m³ Mima, 14 July: 12.5 µg/m³ Mima, 15 July: 18.7 µg/m³ Mima, 16 July: 15.0 µg/m³ Mima, 17 July: 19.3 µg/m³ Mima, 18 July: 21.5 µg/m³ Mima, 19 July: 18.0 µg/m³ Mima, 20 July: 21.1 µg/m³ Mima, 21 July: 25.6 µg/m³, 2.3× its usual 11.3 Mima, 22 July: 31.0 µg/m³, 2.8× its usual 11.1 Mima, 23 July: 25.9 µg/m³, 2.3× its usual 11.1 Mima, 24 July: 26.4 µg/m³, 2.3× its usual 11.3 Mima, 25 July: 19.2 µg/m³ Mima, 26 July: 15.2 µg/m³ Mima, 27 July: 16.4 µg/m³ Mima, 28 July: 13.4 µg/m³ Yamaguchi Yamaguchi, 13 July: 14.3 µg/m³ Yamaguchi, 14 July: 10.9 µg/m³ Yamaguchi, 15 July: 9.7 µg/m³ Yamaguchi, 16 July: 14.7 µg/m³ Yamaguchi, 17 July: 15.8 µg/m³ Yamaguchi, 18 July: 20.3 µg/m³ Yamaguchi, 19 July: 23.0 µg/m³ Yamaguchi, 20 July: 21.2 µg/m³ Yamaguchi, 21 July: 30.6 µg/m³, 4.3× its usual 7.2 Yamaguchi, 22 July: 20.0 µg/m³ Yamaguchi, 23 July: 9.3 µg/m³ Yamaguchi, 24 July: 12.0 µg/m³ Yamaguchi, 25 July: 8.3 µg/m³ Yamaguchi, 26 July: 8.8 µg/m³ Yamaguchi, 27 July: 11.0 µg/m³ Yamaguchi, 28 July: 5.0 µg/m³ Tsurusaki Tsurusaki, 13 July: 13.0 µg/m³ Tsurusaki, 14 July: 14.3 µg/m³ Tsurusaki, 15 July: 8.5 µg/m³ Tsurusaki, 16 July: 12.5 µg/m³ Tsurusaki, 17 July: 16.7 µg/m³ Tsurusaki, 18 July: 24.1 µg/m³ Tsurusaki, 19 July: 22.1 µg/m³ Tsurusaki, 20 July: 18.2 µg/m³ Tsurusaki, 21 July: 30.0 µg/m³, 3.6× its usual 8.4 Tsurusaki, 22 July: 19.7 µg/m³ Tsurusaki, 23 July: 13.0 µg/m³ Tsurusaki, 24 July: 13.6 µg/m³ Tsurusaki, 25 July: 12.6 µg/m³ Tsurusaki, 26 July: 7.9 µg/m³ Tsurusaki, 27 July: 13.6 µg/m³ Tsurusaki, 28 July: 12.7 µg/m³ Nobeoka Nobeoka, 13 July: 17.2 µg/m³ Nobeoka, 14 July: 18.8 µg/m³ Nobeoka, 15 July: 11.7 µg/m³ Nobeoka, 16 July: 12.0 µg/m³ Nobeoka, 17 July: 20.2 µg/m³ Nobeoka, 18 July: 22.3 µg/m³ Nobeoka, 19 July: 18.4 µg/m³ Nobeoka, 20 July: 21.5 µg/m³ Nobeoka, 21 July: 28.8 µg/m³, 3.1× its usual 9.3 Nobeoka, 22 July: 30.0 µg/m³, 3.3× its usual 9.1 Nobeoka, 23 July: 27.7 µg/m³, 3.0× its usual 9.1 Nobeoka, 24 July: 27.6 µg/m³, 2.9× its usual 9.4 Nobeoka, 25 July: 26.5 µg/m³, 2.9× its usual 9.1 Nobeoka, 26 July: 19.9 µg/m³ Nobeoka, 27 July: 19.0 µg/m³ Nobeoka, 28 July: 23.1 µg/m³ Sumoto Sumoto, 13 July: 15.0 µg/m³ Sumoto, 14 July: 14.2 µg/m³ Sumoto, 15 July: 18.8 µg/m³ Sumoto, 16 July: 16.1 µg/m³ Sumoto, 17 July: 17.5 µg/m³ Sumoto, 18 July: 18.4 µg/m³ Sumoto, 19 July: 16.7 µg/m³ Sumoto, 20 July: 17.5 µg/m³ Sumoto, 21 July: 22.4 µg/m³ Sumoto, 22 July: 29.5 µg/m³, 4.4× its usual 6.7 Sumoto, 23 July: 34.2 µg/m³, 5.1× its usual 6.7 Sumoto, 24 July: 17.2 µg/m³ Sumoto, 25 July: 17.8 µg/m³ Sumoto, 26 July: 16.2 µg/m³ Sumoto, 27 July: 15.2 µg/m³ Sumoto, 28 July: 14.8 µg/m³ Iwade Iwade, 13 July: 17.5 µg/m³ Iwade, 14 July: 16.3 µg/m³ Iwade, 15 July: 19.8 µg/m³ Iwade, 16 July: 18.6 µg/m³ Iwade, 17 July: 21.7 µg/m³ Iwade, 18 July: 22.1 µg/m³ Iwade, 19 July: 17.4 µg/m³ Iwade, 20 July: 16.3 µg/m³ Iwade, 21 July: 21.1 µg/m³ Iwade, 22 July: 26.1 µg/m³, 2.7× its usual 9.6 Iwade, 23 July: 33.5 µg/m³, 3.5× its usual 9.7 Iwade, 24 July: 28.0 µg/m³, 2.8× its usual 10.1 Iwade, 25 July: 19.4 µg/m³ Iwade, 26 July: 16.5 µg/m³ Iwade, 27 July: 15.1 µg/m³ Iwade, 28 July: 15.2 µg/m³ Fukuroi Fukuroi, 13 July: 14.6 µg/m³ Fukuroi, 14 July: 25.5 µg/m³ Fukuroi, 15 July: 16.8 µg/m³ Fukuroi, 16 July: 26.7 µg/m³ Fukuroi, 17 July: 21.3 µg/m³ Fukuroi, 18 July: 6.2 µg/m³ Fukuroi, 19 July: 6.9 µg/m³ Fukuroi, 20 July: 13.4 µg/m³ Fukuroi, 21 July: 22.1 µg/m³ Fukuroi, 22 July: 25.5 µg/m³, 2.6× its usual 9.9 Fukuroi, 23 July: 32.6 µg/m³, 3.3× its usual 10.0 Fukuroi, 24 July: 27.3 µg/m³, 2.8× its usual 9.9 Fukuroi, 25 July: 25.2 µg/m³, 2.5× its usual 9.9 Fukuroi, 26 July: 10.9 µg/m³ Fukuroi, 27 July: 9.9 µg/m³ Fukuroi, 28 July: 9.0 µg/m³ Zentsujichó Zentsujichó, 13 July: 11.7 µg/m³ Zentsujichó, 14 July: 12.3 µg/m³ Zentsujichó, 15 July: 9.5 µg/m³ Zentsujichó, 16 July: 12.6 µg/m³ Zentsujichó, 17 July: 16.0 µg/m³ Zentsujichó, 18 July: 23.2 µg/m³ Zentsujichó, 19 July: 17.8 µg/m³ Zentsujichó, 20 July: 22.0 µg/m³ Zentsujichó, 21 July: 23.5 µg/m³ Zentsujichó, 22 July: 31.9 µg/m³, 3.2× its usual 9.9 Zentsujichó, 23 July: 20.0 µg/m³ Zentsujichó, 24 July: 18.0 µg/m³ Zentsujichó, 25 July: 15.1 µg/m³ Zentsujichó, 26 July: 13.4 µg/m³ Zentsujichó, 27 July: 13.4 µg/m³ Zentsujichó, 28 July: 10.3 µg/m³ Gotemba Gotemba, 13 July: 15.8 µg/m³ Gotemba, 14 July: 15.5 µg/m³ Gotemba, 15 July: 17.8 µg/m³ Gotemba, 16 July: 30.1 µg/m³ Gotemba, 17 July: 22.3 µg/m³ Gotemba, 18 July: 7.7 µg/m³ Gotemba, 19 July: 2.8 µg/m³ Gotemba, 20 July: 12.0 µg/m³ Gotemba, 21 July: 17.0 µg/m³ Gotemba, 22 July: 25.7 µg/m³, 2.2× its usual 11.6 Gotemba, 23 July: 31.9 µg/m³, 2.8× its usual 11.4 Gotemba, 24 July: 22.9 µg/m³ Gotemba, 25 July: 24.4 µg/m³ Gotemba, 26 July: 8.0 µg/m³ Gotemba, 27 July: 9.6 µg/m³ Gotemba, 28 July: no reading Sukayama Sukayama, 13 July: 18.0 µg/m³ Sukayama, 14 July: 14.8 µg/m³ Sukayama, 15 July: 17.5 µg/m³ Sukayama, 16 July: 29.6 µg/m³ Sukayama, 17 July: 14.6 µg/m³ Sukayama, 18 July: 6.8 µg/m³ Sukayama, 19 July: 3.1 µg/m³ Sukayama, 20 July: 8.8 µg/m³ Sukayama, 21 July: 17.3 µg/m³ Sukayama, 22 July: 31.8 µg/m³, 3.3× its usual 9.6 Sukayama, 23 July: 22.3 µg/m³ Sukayama, 24 July: 8.5 µg/m³ Sukayama, 25 July: 9.4 µg/m³ Sukayama, 26 July: 10.6 µg/m³ Sukayama, 27 July: 8.9 µg/m³ Sukayama, 28 July: 10.3 µg/m³ Takinomiya Takinomiya, 13 July: 9.8 µg/m³ Takinomiya, 14 July: 9.7 µg/m³ Takinomiya, 15 July: 6.6 µg/m³ Takinomiya, 16 July: 9.0 µg/m³ Takinomiya, 17 July: 11.5 µg/m³ Takinomiya, 18 July: 16.7 µg/m³ Takinomiya, 19 July: 15.5 µg/m³ Takinomiya, 20 July: 17.2 µg/m³ Takinomiya, 21 July: 23.6 µg/m³ Takinomiya, 22 July: 31.1 µg/m³, 4.0× its usual 7.8 Takinomiya, 23 July: 18.7 µg/m³ Takinomiya, 24 July: 15.4 µg/m³ Takinomiya, 25 July: 13.3 µg/m³ Takinomiya, 26 July: 11.4 µg/m³ Takinomiya, 27 July: 11.8 µg/m³ Takinomiya, 28 July: 10.5 µg/m³ Takamatsu Takamatsu, 13 July: 11.2 µg/m³ Takamatsu, 14 July: 11.0 µg/m³ Takamatsu, 15 July: 8.2 µg/m³ Takamatsu, 16 July: 11.2 µg/m³ Takamatsu, 17 July: 15.6 µg/m³ Takamatsu, 18 July: 17.2 µg/m³ Takamatsu, 19 July: 15.1 µg/m³ Takamatsu, 20 July: 16.9 µg/m³ Takamatsu, 21 July: 24.7 µg/m³ Takamatsu, 22 July: 31.1 µg/m³, 4.0× its usual 7.7 Takamatsu, 23 July: 19.3 µg/m³ Takamatsu, 24 July: 18.4 µg/m³ Takamatsu, 25 July: 14.6 µg/m³ Takamatsu, 26 July: 12.5 µg/m³ Takamatsu, 27 July: 13.5 µg/m³ Takamatsu, 28 July: 9.8 µg/m³ Toyohashi Toyohashi, 13 July: 13.0 µg/m³ Toyohashi, 14 July: 9.6 µg/m³ Toyohashi, 15 July: 16.9 µg/m³ Toyohashi, 16 July: 20.0 µg/m³ Toyohashi, 17 July: 19.6 µg/m³ Toyohashi, 18 July: 10.8 µg/m³ Toyohashi, 19 July: no reading Toyohashi, 20 July: 9.3 µg/m³ Toyohashi, 21 July: 18.0 µg/m³ Toyohashi, 22 July: 26.2 µg/m³, 3.3× its usual 7.9 Toyohashi, 23 July: 21.7 µg/m³ Toyohashi, 24 July: 30.8 µg/m³, 3.9× its usual 7.9 Toyohashi, 25 July: 17.8 µg/m³ Toyohashi, 26 July: 16.1 µg/m³ Toyohashi, 27 July: 9.3 µg/m³ Toyohashi, 28 July: 7.4 µg/m³ Kameoka Kameoka, 13 July: 12.1 µg/m³ Kameoka, 14 July: 12.4 µg/m³ Kameoka, 15 July: 10.8 µg/m³ Kameoka, 16 July: 16.0 µg/m³ Kameoka, 17 July: 17.3 µg/m³ Kameoka, 18 July: 18.8 µg/m³ Kameoka, 19 July: 14.5 µg/m³ Kameoka, 20 July: 15.3 µg/m³ Kameoka, 21 July: 24.8 µg/m³ Kameoka, 22 July: 30.3 µg/m³, 3.5× its usual 8.7 Kameoka, 23 July: 16.4 µg/m³ Kameoka, 24 July: 11.4 µg/m³ Kameoka, 25 July: 14.7 µg/m³ Kameoka, 26 July: 11.0 µg/m³ Kameoka, 27 July: 8.7 µg/m³ Kameoka, 28 July: 9.9 µg/m³ Shingū Shingū, 13 July: 19.0 µg/m³ Shingū, 14 July: 22.3 µg/m³ Shingū, 15 July: 22.0 µg/m³ Shingū, 16 July: 24.6 µg/m³ Shingū, 17 July: 19.9 µg/m³ Shingū, 18 July: 17.9 µg/m³ Shingū, 19 July: 8.7 µg/m³ Shingū, 20 July: 12.4 µg/m³ Shingū, 21 July: 17.8 µg/m³ Shingū, 22 July: 19.3 µg/m³ Shingū, 23 July: 33.4 µg/m³, 4.0× its usual 8.3 Shingū, 24 July: 30.7 µg/m³, 3.7× its usual 8.3 Shingū, 25 July: 25.7 µg/m³, 3.1× its usual 8.2 Shingū, 26 July: 19.7 µg/m³ Shingū, 27 July: 16.5 µg/m³ Shingū, 28 July: 18.0 µg/m³ Kainan Kainan, 13 July: 16.7 µg/m³ Kainan, 14 July: 17.0 µg/m³ Kainan, 15 July: 18.0 µg/m³ Kainan, 16 July: 18.0 µg/m³ Kainan, 17 July: 19.4 µg/m³ Kainan, 18 July: 19.5 µg/m³ Kainan, 19 July: 15.0 µg/m³ Kainan, 20 July: 14.8 µg/m³ Kainan, 21 July: 19.7 µg/m³ Kainan, 22 July: 24.4 µg/m³ Kainan, 23 July: 33.4 µg/m³, 3.8× its usual 8.7 Kainan, 24 July: 27.4 µg/m³, 3.1× its usual 8.8 Kainan, 25 July: 19.8 µg/m³ Kainan, 26 July: 16.6 µg/m³ Kainan, 27 July: 16.1 µg/m³ Kainan, 28 July: 17.9 µg/m³ Tanabe Tanabe, 13 July: 15.5 µg/m³ Tanabe, 14 July: 16.8 µg/m³ Tanabe, 15 July: 21.7 µg/m³ Tanabe, 16 July: 18.1 µg/m³ Tanabe, 17 July: 20.8 µg/m³ Tanabe, 18 July: 19.2 µg/m³ Tanabe, 19 July: 13.0 µg/m³ Tanabe, 20 July: 12.5 µg/m³ Tanabe, 21 July: no reading Tanabe, 22 July: 18.8 µg/m³ Tanabe, 23 July: 28.2 µg/m³, 3.8× its usual 7.5 Tanabe, 24 July: 32.5 µg/m³, 4.2× its usual 7.7 Tanabe, 25 July: no reading Tanabe, 26 July: no reading Tanabe, 27 July: no reading Tanabe, 28 July: no reading Minato Minato, 13 July: 17.1 µg/m³ Minato, 14 July: 17.7 µg/m³ Minato, 15 July: 19.4 µg/m³ Minato, 16 July: 17.7 µg/m³ Minato, 17 July: 18.4 µg/m³ Minato, 18 July: 19.8 µg/m³ Minato, 19 July: 16.7 µg/m³ Minato, 20 July: 14.6 µg/m³ Minato, 21 July: 19.4 µg/m³ Minato, 22 July: 24.9 µg/m³ Minato, 23 July: 31.7 µg/m³, 3.4× its usual 9.2 Minato, 24 July: 25.9 µg/m³, 2.7× its usual 9.6 Minato, 25 July: 18.9 µg/m³ Minato, 26 July: 16.6 µg/m³ Minato, 27 July: 15.9 µg/m³ Minato, 28 July: 18.0 µg/m³ Izumisano Izumisano, 13 July: 15.1 µg/m³ Izumisano, 14 July: 14.5 µg/m³ Izumisano, 15 July: 13.6 µg/m³ Izumisano, 16 July: 15.4 µg/m³ Izumisano, 17 July: 17.0 µg/m³ Izumisano, 18 July: 18.6 µg/m³ Izumisano, 19 July: 15.1 µg/m³ Izumisano, 20 July: 14.4 µg/m³ Izumisano, 21 July: 19.8 µg/m³ Izumisano, 22 July: 24.1 µg/m³ Izumisano, 23 July: 31.3 µg/m³, 3.9× its usual 8.0 Izumisano, 24 July: 19.6 µg/m³ Izumisano, 25 July: 16.9 µg/m³ Izumisano, 26 July: 14.6 µg/m³ Izumisano, 27 July: 11.4 µg/m³ Izumisano, 28 July: 14.4 µg/m³ Kishiwada Kishiwada, 13 July: 15.5 µg/m³ Kishiwada, 14 July: 14.5 µg/m³ Kishiwada, 15 July: 14.6 µg/m³ Kishiwada, 16 July: 17.0 µg/m³ Kishiwada, 17 July: 17.0 µg/m³ Kishiwada, 18 July: 19.5 µg/m³ Kishiwada, 19 July: 15.5 µg/m³ Kishiwada, 20 July: 14.8 µg/m³ Kishiwada, 21 July: 21.6 µg/m³ Kishiwada, 22 July: 24.5 µg/m³ Kishiwada, 23 July: 31.3 µg/m³, 3.5× its usual 8.9 Kishiwada, 24 July: 17.8 µg/m³ Kishiwada, 25 July: 15.3 µg/m³ Kishiwada, 26 July: 14.5 µg/m³ Kishiwada, 27 July: 11.5 µg/m³ Kishiwada, 28 July: 14.5 µg/m³ Hashimoto Hashimoto, 13 July: 15.7 µg/m³ Hashimoto, 14 July: 11.3 µg/m³ Hashimoto, 15 July: 15.0 µg/m³ Hashimoto, 16 July: 16.3 µg/m³ Hashimoto, 17 July: 19.2 µg/m³ Hashimoto, 18 July: 22.2 µg/m³ Hashimoto, 19 July: 15.1 µg/m³ Hashimoto, 20 July: 13.8 µg/m³ Hashimoto, 21 July: 19.3 µg/m³ Hashimoto, 22 July: 23.6 µg/m³ Hashimoto, 23 July: 31.1 µg/m³, 3.8× its usual 8.1 Hashimoto, 24 July: 24.9 µg/m³ Hashimoto, 25 July: 16.4 µg/m³ Hashimoto, 26 July: 14.6 µg/m³ Hashimoto, 27 July: 12.8 µg/m³ Hashimoto, 28 July: 11.1 µg/m³ Izumi Izumi, 13 July: 15.1 µg/m³ Izumi, 14 July: 12.6 µg/m³ Izumi, 15 July: 12.4 µg/m³ Izumi, 16 July: 14.0 µg/m³ Izumi, 17 July: 18.7 µg/m³ Izumi, 18 July: 20.2 µg/m³ Izumi, 19 July: 14.2 µg/m³ Izumi, 20 July: 13.9 µg/m³ Izumi, 21 July: 18.6 µg/m³ Izumi, 22 July: 23.1 µg/m³ Izumi, 23 July: 30.5 µg/m³, 3.8× its usual 8.0 Izumi, 24 July: 20.2 µg/m³ Izumi, 25 July: 14.5 µg/m³ Izumi, 26 July: 13.6 µg/m³ Izumi, 27 July: 10.4 µg/m³ Izumi, 28 July: 12.2 µg/m³ Sennan Sennan, 13 July: no reading Sennan, 14 July: no reading Sennan, 15 July: no reading Sennan, 16 July: 14.2 µg/m³ Sennan, 17 July: 15.5 µg/m³ Sennan, 18 July: 17.4 µg/m³ Sennan, 19 July: 14.1 µg/m³ Sennan, 20 July: 13.6 µg/m³ Sennan, 21 July: 19.0 µg/m³ Sennan, 22 July: 22.0 µg/m³ Sennan, 23 July: 30.0 µg/m³, 3.9× its usual 7.6 Sennan, 24 July: 19.9 µg/m³ Sennan, 25 July: 14.8 µg/m³ Sennan, 26 July: 14.2 µg/m³ Sennan, 27 July: 11.2 µg/m³ Sennan, 28 July: 14.3 µg/m³ Odawara Odawara, 13 July: 15.3 µg/m³ Odawara, 14 July: 17.5 µg/m³ Odawara, 15 July: 16.7 µg/m³ Odawara, 16 July: 26.7 µg/m³ Odawara, 17 July: 21.4 µg/m³ Odawara, 18 July: 5.3 µg/m³ Odawara, 19 July: 4.4 µg/m³ Odawara, 20 July: 8.8 µg/m³ Odawara, 21 July: 15.8 µg/m³ Odawara, 22 July: 23.9 µg/m³ Odawara, 23 July: 30.0 µg/m³, 3.4× its usual 8.9 Odawara, 24 July: 17.4 µg/m³ Odawara, 25 July: 22.0 µg/m³ Odawara, 26 July: 8.4 µg/m³ Odawara, 27 July: 11.1 µg/m³ Odawara, 28 July: 8.6 µg/m³ Susaki Susaki, 13 July: 14.0 µg/m³ Susaki, 14 July: 21.2 µg/m³ Susaki, 15 July: 19.8 µg/m³ Susaki, 16 July: 17.6 µg/m³ Susaki, 17 July: 19.9 µg/m³ Susaki, 18 July: 23.7 µg/m³ Susaki, 19 July: 17.9 µg/m³ Susaki, 20 July: 17.1 µg/m³ Susaki, 21 July: 14.4 µg/m³ Susaki, 22 July: 19.9 µg/m³ Susaki, 23 July: 23.7 µg/m³ Susaki, 24 July: 29.7 µg/m³, 3.3× its usual 9.1 Susaki, 25 July: 34.5 µg/m³, 3.8× its usual 9.1 Susaki, 26 July: 30.2 µg/m³ Susaki, 27 July: 24.4 µg/m³ Susaki, 28 July: 18.9 µg/m³ Aki Aki, 13 July: 13.7 µg/m³ Aki, 14 July: 19.7 µg/m³ Aki, 15 July: 22.1 µg/m³ Aki, 16 July: 18.9 µg/m³ Aki, 17 July: 21.3 µg/m³ Aki, 18 July: 18.8 µg/m³ Aki, 19 July: 21.1 µg/m³ Aki, 20 July: 21.0 µg/m³ Aki, 21 July: 13.7 µg/m³ Aki, 22 July: 14.7 µg/m³ Aki, 23 July: 23.4 µg/m³ Aki, 24 July: 31.9 µg/m³, 3.8× its usual 8.5 Aki, 25 July: 30.0 µg/m³, 3.5× its usual 8.5 Aki, 26 July: 23.8 µg/m³ Aki, 27 July: 22.9 µg/m³ Aki, 28 July: 26.1 µg/m³ Mooka Mooka, 13 July: 16.4 µg/m³ Mooka, 14 July: 15.8 µg/m³ Mooka, 15 July: 18.5 µg/m³ Mooka, 16 July: 24.8 µg/m³ Mooka, 17 July: 15.4 µg/m³ Mooka, 18 July: 5.1 µg/m³ Mooka, 19 July: 6.6 µg/m³ Mooka, 20 July: 9.6 µg/m³ Mooka, 21 July: 16.8 µg/m³ Mooka, 22 July: 18.2 µg/m³ Mooka, 23 July: 17.0 µg/m³ Mooka, 24 July: 10.0 µg/m³ Mooka, 25 July: 39.1 µg/m³, 4.6× its usual 8.5 Mooka, 26 July: 7.6 µg/m³ Mooka, 27 July: no reading Mooka, 28 July: no reading 13 Jul 15 17 19 21 23 25 27 The 60 cities with the highest readings of 205, in the order the episode reached them, 3 days before to 3 after. Each square is a day, coloured by that day's PM2.5; outlined: at twice the city's usual or more. Good 0–50
Moderate 51–100
Sensitive groups 101–150
Unhealthy 151–200
Very unhealthy 201–300
Hazardous 301+
Every city it reached
City Days Highest Usual Above usual
Mitai Miyazaki, Japan 5 21 July 5.2 6.6× Tonoshō Kagawa, Japan 3 22 July 7.1 5.2× Sumoto Hyōgo, Japan 2 23 July 6.7 5.1× Kobayashi Miyazaki, Japan 3 25 July 6.8 4.9× Mooka Tochigi, Japan 1 25 July 8.5 4.6× Nishiwaki Hyōgo, Japan 2 22 July 7.4 4.5× Beppu Oita, Japan 3 21 July 8.2 4.4× Ōita Oita, Japan 2 21 July 8.1 4.3× Mie Oita, Japan 6 21 July 7.5 4.3× Yamaguchi Yamaguchi, Japan 1 21 July 7.2 4.3× Shido Kagawa, Japan 2 22 July 8.7 4.2× Tanabe Wakayama, Japan 2 24 July 7.7 4.2× Yono Osaka, Japan 1 22 July 7.1 4.1× Miyakonojō Miyazaki, Japan 1 25 July 7.1 4.1× Hiwasaura Tokushima, Japan 4 23 July 9.4 4.0× Shingū Wakayama, Japan 3 23 July 8.3 4.0× Takinomiya Kagawa, Japan 1 22 July 7.8 4.0× Takamatsu Kagawa, Japan 1 22 July 7.7 4.0× Takatsuki Osaka, Japan 1 22 July 7.2 4.0× Hagi Yamaguchi, Japan 2 19 July 6.8 4.0× Ono Hyōgo, Japan 2 22 July 9.0 3.9× Izumisano Osaka, Japan 1 23 July 8.0 3.9× Toyohashi Aichi, Japan 2 24 July 7.9 3.9× Sennan Osaka, Japan 1 23 July 7.6 3.9× Kumano Mie, Japan 2 23 July 7.3 3.9× Shinshiro Aichi, Japan 2 22 July 7.2 3.9× Inuyama Aichi, Japan 1 22 July 6.7 3.9× Kariya Hyōgo, Japan 3 22 July 9.7 3.8× Susaki Kochi, Japan 2 25 July 9.1 3.8× Shimogamo Okayama, Japan 2 22 July 9.1 3.8× Kainan Wakayama, Japan 2 23 July 8.7 3.8× Tsuyama Okayama, Japan 2 22 July 8.6 3.8× Aki Kochi, Japan 2 24 July 8.5 3.8× Hashimoto Wakayama, Japan 1 23 July 8.1 3.8× Izumi Osaka, Japan 1 23 July 8.0 3.8× Shima Mie, Japan 1 23 July 7.5 3.8× Shinagawa Ehime, Japan 1 23 July 6.7 3.8× Kuma Ehime, Japan 1 23 July 6.7 3.8× Tatsuno Hyōgo, Japan 3 22 July 9.9 3.7× Aioi Hyōgo, Japan 3 22 July 9.8 3.7× Hiragi Kagawa, Japan 2 22 July 8.6 3.7× Kakogawachō-honmachi Hyōgo, Japan 2 22 July 9.6 3.6× Tamano Okayama, Japan 2 22 July 9.0 3.6× Tsurusaki Oita, Japan 1 21 July 8.4 3.6× Takarazuka Hyōgo, Japan 1 22 July 8.1 3.6× Kakegawa Shizuoka, Japan 2 24 July 8.1 3.6× Shimada Shizuoka, Japan 2 24 July 7.9 3.6× Ise Mie, Japan 2 23 July 7.8 3.6× Hamakita Shizuoka, Japan 1 24 July 7.6 3.6× Fujieda Shizuoka, Japan 3 25 July 7.6 3.6× Iwade Wakayama, Japan 3 23 July 9.7 3.5× Higashinozoe Hyōgo, Japan 3 22 July 9.3 3.5× Kishiwada Osaka, Japan 1 23 July 8.9 3.5× Kameoka Kyoto, Japan 1 22 July 8.7 3.5× Takahashi Okayama, Japan 1 22 July 8.4 3.5× Takanabe Miyazaki, Japan 4 23 July 8.3 3.5× Toba Mie, Japan 2 23 July 8.2 3.5× Kobe Hyōgo, Japan 2 23 July 8.0 3.5× Tondabayashichō Osaka, Japan 1 23 July 8.0 3.5× Tokushima Tokushima, Japan 2 23 July 7.8 3.5× Kitahama Shiga, Japan 1 22 July 7.7 3.5× Hekinan Aichi, Japan 1 22 July 7.8 3.5× Ikaruga Hyōgo, Japan 3 22 July 9.5 3.4× Minato Wakayama, Japan 2 23 July 9.2 3.4× Odawara Kanagawa, Japan 1 23 July 8.9 3.4× Himeji Hyōgo, Japan 2 22 July 8.8 3.4× Akashi Hyōgo, Japan 2 22 July 8.7 3.4× Gamagōri Aichi, Japan 2 22 July 8.5 3.4× Ueno-ebisumachi Mie, Japan 1 22 July 8.3 3.4× Takayama Gifu, Japan 1 22 July 8.2 3.4× Sayama Osaka, Japan 1 23 July 8.2 3.4× Kōtari Kyoto, Japan 1 22 July 8.3 3.4× Hōfu Yamaguchi, Japan 1 21 July 7.9 3.4× Hamamatsu Shizuoka, Japan 1 24 July 7.9 3.4× Tsu Mie, Japan 1 22 July 7.7 3.4× Nisshin Aichi, Japan 1 22 July 7.7 3.4× Yae Hiroshima, Japan 1 22 July 7.8 3.4× Kusatsu Shiga, Japan 1 22 July 7.8 3.4× Kikugawa Shizuoka, Japan 2 24 July 7.6 3.4× Fuefuki Yamanashi, Japan 1 23 July 7.6 3.4× Bizen Okayama, Japan 3 22 July 11.0 3.3× Fukuroi Shizuoka, Japan 4 23 July 10.0 3.3× Sukayama Chiba, Japan 1 22 July 9.6 3.3× Okayama Okayama, Japan 2 22 July 9.5 3.3× Nobeoka Miyazaki, Japan 5 22 July 9.1 3.3× Minami-Alps Yamanashi, Japan 2 23 July 9.1 3.3× Sakai Osaka, Japan 1 23 July 8.8 3.3× Kyoto Kyoto, Japan 1 22 July 8.7 3.3× Kosai Shizuoka, Japan 1 24 July 8.5 3.3× Inabe Mie, Japan 1 22 July 8.6 3.3× Toyooka Hyōgo, Japan 1 21 July 8.3 3.3× Suzuka Mie, Japan 1 22 July 8.4 3.3× Iga Mie, Japan 1 22 July 8.3 3.3× Toyonaka Osaka, Japan 1 22 July 8.1 3.3× Shimoda Shizuoka, Japan 2 25 July 8.0 3.3× Owase Mie, Japan 2 24 July 7.9 3.3× Gobō Wakayama, Japan 2 23 July 7.8 3.3× Numazu Shizuoka, Japan 2 25 July 7.9 3.3× Kyōtango Kyoto, Japan 1 21 July 7.7 3.3× Ōtsu Shiga, Japan 1 22 July 7.7 3.3× Mungyeong Gyeongsangbuk-do, South Korea 1 17 July 7.7 3.3× Sakura Chiba, Japan 1 22 July 7.6 3.3× Zentsujichó Kagawa, Japan 1 22 July 9.9 3.2× Kinokawa Wakayama, Japan 1 18 July 9.6 3.2× Kamojimachō-jōgejima Tokushima, Japan 3 22 July 8.8 3.2× Isehara Kanagawa, Japan 1 23 July 8.7 3.2× Kashima-shi Ibaraki, Japan 1 22 July 8.6 3.2× Tokoname Aichi, Japan 1 22 July 8.4 3.2× Matsusaka Mie, Japan 1 22 July 8.5 3.2× Kizugawa Kyoto, Japan 1 22 July 8.4 3.2× Nankoku Kochi, Japan 1 25 July 8.2 3.2× Nabari Mie, Japan 1 22 July 8.1 3.2× Hayashima Okayama, Japan 2 22 July 10.4 3.1× Tottori-shi Tottori, Japan 3 21 July 10.3 3.1× Sandachō Hyōgo, Japan 2 22 July 10.0 3.1× Kashiwara Nara, Japan 1 23 July 9.6 3.1× Ayabe Kyoto, Japan 2 22 July 9.3 3.1× Hikone Shiga, Japan 2 22 July 9.3 3.1× Fukuchiyama Kyoto, Japan 2 22 July 9.1 3.1× Kashihara-shi Nara, Japan 1 23 July 9.0 3.1× Atami Shizuoka, Japan 1 23 July 9.1 3.1× Yoshinogawa Tokushima, Japan 3 23 July 9.1 3.1× Shūnan Yamaguchi, Japan 1 21 July 8.9 3.1× Kawaguchi Tokushima, Japan 2 24 July 8.8 3.1× Takashima Shiga, Japan 1 22 July 8.7 3.1× Ino Kochi, Japan 1 24 July 8.8 3.1× Nantan Kyoto, Japan 2 21 July 8.5 3.1× Toyota Aichi, Japan 1 22 July 8.6 3.1× Izunokuni Shizuoka, Japan 1 23 July 8.5 3.1× Tsukumiura Oita, Japan 1 21 July 8.5 3.1× Hiratsuka Kanagawa, Japan 1 23 July 8.5 3.1× Fuji Shizuoka, Japan 2 23 July 8.4 3.1× Saikū Mie, Japan 2 23 July 8.3 3.1× Jōyō Kyoto, Japan 1 22 July 8.1 3.1× Nakamura Kochi, Japan 1 25 July 8.3 3.1× Nishinomiya Hyōgo, Japan 2 22 July 8.1 3.1× Nishio Aichi, Japan 1 22 July 8.1 3.1× Nagahama Shiga, Japan 2 22 July 10.0 3.0× Higashihiroshima Hiroshima, Japan 1 22 July 9.8 3.0× Chigasaki Kanagawa, Japan 1 23 July 9.5 3.0× Hadano Kanagawa, Japan 1 23 July 9.4 3.0× Kurashiki Okayama, Japan 2 22 July 9.5 3.0× Yeongju Gyeongsangbuk-do, South Korea 1 17 July 9.0 3.0× Youkaichi Shiga, Japan 1 22 July 9.0 3.0× Fukui-shi Fukui, Japan 2 21 July 8.8 3.0× Kariya Aichi, Japan 1 22 July 8.6 3.0× Nagano Nagano, Japan 1 22 July 8.5 3.0× Yao Osaka, Japan 1 23 July 8.4 3.0× Ikedachō Tokushima, Japan 4 22 July 10.3 2.9× Marugame Kagawa, Japan 1 22 July 10.1 2.9× Hyūga Miyazaki, Japan 5 22 July 9.6 2.9× Fujinomiya Shizuoka, Japan 2 23 July 9.7 2.9× Shin’ichi Hiroshima, Japan 1 22 July 9.5 2.9× Narutochō-mitsuishi Tokushima, Japan 2 22 July 9.2 2.9× Miyazu Kyoto, Japan 1 21 July 8.8 2.9× Izumo Shimane, Japan 1 19 July 8.7 2.9× Kuwana Mie, Japan 1 22 July 8.7 2.9× Amagasaki Hyōgo, Japan 1 23 July 8.7 2.9× Tōkai Aichi, Japan 1 22 July 8.8 2.9× Gotemba Shizuoka, Japan 2 23 July 11.4 2.8× Mima Tokushima, Japan 4 22 July 11.1 2.8× Kochi Kochi, Japan 2 24 July 10.6 2.8× Sōja Okayama, Japan 1 22 July 10.0 2.8× Gion Hiroshima, Japan 2 22 July 9.8 2.8× Andong Gyeongsangbuk-do, South Korea 1 17 July 9.7 2.8× Toyama Toyama, Japan 1 22 July 9.5 2.8× Anan Tokushima, Japan 2 23 July 9.7 2.8× Ikoma Nara, Japan 1 22 July 9.3 2.8× Okazaki Aichi, Japan 1 22 July 9.3 2.8× Ōtake Hiroshima, Japan 1 21 July 9.3 2.8× Higashiosaka Osaka, Japan 1 23 July 9.2 2.8× Koesan North Chungcheong, South Korea 1 16 July 11.2 2.7× Yecheon Gyeongsangbuk-do, South Korea 1 17 July 11.2 2.7× Chungju North Chungcheong, South Korea 2 17 July 11.0 2.7× Yufu Oita, Japan 2 21 July 10.5 2.7× Fukuyama Hiroshima, Japan 1 22 July 10.2 2.7× Tongyeong Gyeongsangnam-do, South Korea 1 16 July 9.4 2.7× Hachiōji Tokyo, Japan 2 22 July 10.5 2.6× Owariasahi Aichi, Japan 1 22 July 10.4 2.6× Kan’onjichō Kagawa, Japan 1 22 July 10.0 2.6× Wabu Gyeonggi-do, South Korea 1 16 July 9.8 2.6× Jeongeup Jeollabuk-do, South Korea 2 17 July 13.2 2.5× Tsuchiura Ibaraki, Japan 1 22 July 11.8 2.5× Fujiyoshida Yamanashi, Japan 1 23 July 10.2 2.5× Iwata Shizuoka, Japan 1 23 July 10.0 2.5× Yeoju Gyeonggi-do, South Korea 2 16 July 13.0 2.4× Osan Gyeonggi-do, South Korea 1 17 July 11.9 2.4× Kamisu Ibaraki, Japan 2 22 July 11.3 2.4× Minawa Kanagawa, Japan 1 23 July 10.7 2.4× Yongsan-dong Seoul, South Korea 1 17 July 10.8 2.4× Shikokuchūō Ehime, Japan 1 22 July 10.5 2.4× Wŏnju Gangwon-do, South Korea 1 17 July 13.1 2.3× Cheorwon Gangwon-do, South Korea 1 16 July 13.3 2.3× Aihara Kanagawa, Japan 1 23 July 11.5 2.3× Jungpyong North Chungcheong, South Korea 1 16 July 11.5 2.3× Kofu Yamanashi, Japan 2 23 July 12.8 2.2× Gwangmyeong Gyeonggi-do, South Korea 1 17 July 12.8 2.2× Ansan-si Gyeonggi-do, South Korea 1 17 July 12.6 2.2× Icheon-si Gyeonggi-do, South Korea 2 17 July 13.0 2.1× Guri-si Gyeonggi-do, South Korea 1 16 July 13.0 2.1× Kasaoka Okayama, Japan 1 22 July 12.1 2.1× Pyeongtaek Gyeonggi-do, South Korea 1 17 July 12.1 2.1× Nagai Yamagata, Japan 1 22 July 11.9 2.1× Ulsan Ulsan, South Korea 1 17 July 12.5 2.0× Pohang Gyeongsangbuk-do, South Korea 1 17 July 12.4 2.0×
Daily means in µg/m³, over the days each city counted in this episode. Highest: its highest of those days. Usual: the city's median for the time of year of that day (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that, with a usual under 5 µg/m³ taken as 5.
Against other episodes in Japan and South Korea
Number 6 of 96 episodes in Japan and South Korea since our records began, by cities reached.
Japan and South Korea, June and July 2025 532 Japan and South Korea, April 2024 519 Japan and South Korea, March 2025 479 Japan and South Korea, March 2026 322 Japan and South Korea, 17 to 24 January 2025 285 Japan and South Korea, July 2026 205 Japan and South Korea, February and March 2025 200 South Korea and Japan, January 2026 176 South Korea and Japan, 10 to 15 February 2026 153 South Korea, 14 to 16 February 2025 136 Japan, November 2023 133 South Korea and Japan, November 2025 132 Bars: cities reached; colour: the level of the episode's highest daily reading. All 96 .
Use this page SmogRank, Japan and South Korea, July 2026: 205 cities with PM2.5 at twice their usual or more, 16 to 25 July 2026, smogrank.com/episodes/2026-07-japan-and-south-korea (accessed 5 October 2026).
Copy citation Download top 10 (PNG)
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms .
An episode is a run of days when many cities close to each other (four or more within 350 km on a day, 8 or more in all) each had a daily PM2.5 mean of at least 25 µg/m³ and at least 2 times their usual for that time of year. Found in our own measurements, not picked by hand. How we find episodes . Values are each city's daily mean of its own monitors; causes are the usual kinds for a pattern like this, not a confirmed source. Fire detections from NASA FIRMS; smoke maps from NOAA HMS.
