SmogRank / Episodes / Japan
Japan, November 2023
For 4 days, from 2 to 5 November 2023, 131 cities in Japan had PM2.5 at least twice their usual for the time of year. The worst reading was Kurashiki, Okayama, Japan: 45.8 µg/m³ on 3 November, about 4.8× its usual 9.6.
No cause named We have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached 131 in 1 country
Days 4 2 to 5 November 2023
Worst day 4 November 113 cities counted
Furthest above usual 4.8× Kaizu
Day by day
Play 4 November 113 cities at twice their usual or more
Maizuru Ayabe Nantan Obama Miyazu Fukuchiyama Kameoka Kyoto Kyōtango Tanba Kōtari Ōtsu Sandachō Uji Takarazuka Toyonaka Tsuruga Jōyō Nishiwaki Toyooka Amagasaki Nishinomiya Kizugawa Kobe Ono Hikone Nagahama Kōka Hōryūji Akashi Sabae Ueno-ebisumachi Himeji Fukui-shi Mikuni Ikaruga Hashimoto Ibi Tatsuno Ōgaki Iwade Ono Aioi Sumoto Minato Kaga Tottori-shi Kariya Kainan Arida Komatsu Narutochō-mitsuishi Owase Ise Gobō Owariasahi Matsutō Kani Nisshin Nonoichi Tokushima Kumano Seto Toba Tajimi Kanazawa Tanabe Minamichita Shido Anan Toyota Toki Shima Shingū Kamojimachō-jōgejima Hiragi Takamatsu Tsubata Gero Yoshinogawa Gamagōri Oyabe Mima Tonami Takayama Takinomiya Hakui Takaoka Niimi Shinshiro Himimachi Imizu Yonago Ikedachō Toyama Nanao Yasugichō Sakaiminato Fukuyama Anamizu Namerikawa Iida Hamamatsu Hamakita Uozu Shikokuchūō Matsue Aki Iwata Onomichi Ina Fukuroi Nyūzen Nankoku Unnan Kakegawa Matsumoto Okaya Kochi Miyoshi Suwa Izumo Kikugawa Ino Shimada Imabari Fujieda Chikuma Itoigawa Shizuoka Susaki Ueda Ōdachō-ōda Nagano Minami-Alps Yae Shinagawa Kofu Suzaka Matsuyama Gion Hiroshima Fuji Yamanashi Jōetsu Gōtsuchō Fujiyoshida Numazu Susono Hamada Izunokuni Ōtsuki Nakamura Tomioka Shimoda Nakanojō Atami Yawatahama Minamiashigara Uwajima Chichibu Takasaki Odawara Shibukawa Masuda Hadano Numata Ōme Minamiuonuma Hikari Minawa Aihara Ogawamachi Hachiōji Hiratsuka Kudamatsu Shūnan Atsugi Sado Akishima Ebina Yokota Ayase Minamirinkan Yamato Machida Kiryū Ōta Fujisawa Higashimurayama Tokorozawa Fuchū Kodaira Kamakura Azamino Noborito Maki Hōfu Tatebayashi Yokohama Kunisaki Hagi Yokosuka Yamaguchi Tokyo Kurihama Shirone Tsukumiura Koga Usuki Saiki Tsurusaki Niitsu-honchō Niigata Kimitsu Kameda-honchō Nagato Tateyama Imaichi Kanuma Urayasu Mine Matsudo Ōita Kisarazu Ube Beppu Onoda Kashiwa Kamagaya Sodegaura Narashino Mie Ichihara Shibata Chiba Nakatsu Yufu Yaita Yotsukaidō Buzen Nobeoka Sakura Shimonoseki Ajiki Kanda Yukuhashi Mobara Ōami Nasukarasuyama Nasushiobara Hyūga Inashiki Kitakyushu Kasama Tōgane Ōhara Aizu-Wakamatsu Hita Tagawa Yokoshiba Nakama Koga Nōgata Aso Hitachiomiya Sōsa Shirakawa Iizuka Ukiha Hitachi-Naka Omigawa Munakata Kashima-shi Kamisu Ōzu Wakasugi Yonezawa Koga Yame Kōriyama Hitachi Ogōri Yamaga Kasuga Tosu Choshi Fukuoka Mifune Kurume Kotō Kumamoto Kitaibaraki Tamana Fukushima Kanzakimachi-kanzaki Yanagawa Ōmuta Maebaru-chūō Itoshima Saga Sagae Iwaki Yamagata Honmachi Shiroishi Taku Higashigō Higashine Karatsu Kashima Takeo Ureshinomachi-shimojuku Minami-Sōma Sōma Iki Imarichō-kō Isahaya Iwanuma Ōmura Hondomachi-hondo Natori-shi Sendai Matsuura Obita Sasebo Togitsu Nagasaki Yoshioka Tagajō-shi Saikai Matsushima Higashimatsushima Wakuya Ishinomaki Uekimachi-mōno Saijō Tanushimarumachi-toyoki Bizen Uto Arao Misato, Saitama Niihama Higashinozoe Tenri Higashihiroshima Shin’ichi Chikugo Yatomi Sugai Nabari Iyo Tōkai Marugame Yawata Tsuchiura Sayama Okazaki Yachiyo Inzai Toride Kakogawachō-honmachi Noda Sōka Takahashi Tamano Kure Iga Nishio Saikū Sekimachi Naka Kan’onjichō Kukichūō Okayama Ōtake Yanai Higashikurume Oyama Sakado Saitama Narita Yachimata Asaka Gyōda Tsuyama Mihara Takashima Mito Honjō Nagoya Hashima Miura Kashihara-shi Kasukabe Kawaguchi Koshigaya Kusatsu Jōsō Iwakuni Takehara Iruma Niiza Ishioka Chigasaki Ichinomiya Kariya Utsunomiya Kaminoma Chiryū Igusa Tahara Youkaichi Yokkaichi Kazo Anjō Kaminokawa Yorii Hokota Menuma Sōja Nagai Ikoma Ama Kosai Higashi-Matsuyama Ashikaga Hannō Kashiwara Kumagaya Shimo-tsuma Suzuka Zentsujichó Mizuho Inabe Bandō Mooka Gifu Ōmihachiman Hekinan Kawagoe Kitahama Morohongō Ageo Handa Kasaoka Kōnosu Kuwana Sakai-nakajima Tochigi Matsusaka Kodamachō-kodamaminami Sano Tokoname Chikusei Inuyama Hanyū Tsu Toyohashi Asakuchi Nara-shi Kakamigahara Kameyama Minokamo Kaizu Kurashiki 30 Oct 31 1 Nov 2 3 4 5 6 7 8 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
Kazo Kazo, 30 October: 8.6 µg/m³, 0.8× usual Kazo, 31 October: 15.3 µg/m³, 1.4× usual Kazo, 1 November: 20.7 µg/m³, 2.0× usual Kazo, 2 November: 25.0 µg/m³, 2.4× usual Kazo, 3 November: 31.0 µg/m³, 2.9× usual Kazo, 4 November: 37.9 µg/m³, 3.6× usual Kazo, 5 November: 24.8 µg/m³, 2.3× usual Kazo, 6 November: 15.2 µg/m³, 1.4× usual Kazo, 7 November: 9.1 µg/m³, 0.9× usual Kazo, 8 November: 10.5 µg/m³, 1.0× usual Chikusei Chikusei, 30 October: 7.8 µg/m³, 0.8× usual Chikusei, 31 October: 14.8 µg/m³, 1.6× usual Chikusei, 1 November: 22.6 µg/m³, 2.4× usual Chikusei, 2 November: 31.9 µg/m³, 3.4× usual Chikusei, 3 November: 30.3 µg/m³, 3.3× usual Chikusei, 4 November: 37.6 µg/m³, 4.0× usual Chikusei, 5 November: 22.8 µg/m³, 2.5× usual Chikusei, 6 November: 11.2 µg/m³, 1.2× usual Chikusei, 7 November: 5.3 µg/m³, 0.6× usual Chikusei, 8 November: 10.0 µg/m³, 1.1× usual Jōsō Jōsō, 30 October: 5.5 µg/m³, 0.6× usual Jōsō, 31 October: 10.9 µg/m³, 1.2× usual Jōsō, 1 November: 16.1 µg/m³, 1.8× usual Jōsō, 2 November: 25.5 µg/m³, 2.8× usual Jōsō, 3 November: 30.4 µg/m³, 3.4× usual Jōsō, 4 November: 31.8 µg/m³, 3.5× usual Jōsō, 5 November: 19.2 µg/m³, 2.1× usual Jōsō, 6 November: 8.6 µg/m³, 1.0× usual Jōsō, 7 November: 4.6 µg/m³, 0.5× usual Jōsō, 8 November: no reading Kurashiki Kurashiki, 30 October: 10.7 µg/m³, 1.1× usual Kurashiki, 31 October: 13.1 µg/m³, 1.4× usual Kurashiki, 1 November: 19.0 µg/m³, 2.0× usual Kurashiki, 2 November: 23.9 µg/m³, 2.5× usual Kurashiki, 3 November: 45.8 µg/m³, 4.8× usual Kurashiki, 4 November: 44.0 µg/m³, 4.6× usual Kurashiki, 5 November: 26.8 µg/m³, 2.8× usual Kurashiki, 6 November: 7.6 µg/m³, 0.8× usual Kurashiki, 7 November: 10.5 µg/m³, 1.1× usual Kurashiki, 8 November: 11.3 µg/m³, 1.2× usual Asakuchi Asakuchi, 30 October: 8.6 µg/m³, 0.9× usual Asakuchi, 31 October: 11.6 µg/m³, 1.2× usual Asakuchi, 1 November: 13.7 µg/m³, 1.4× usual Asakuchi, 2 November: 17.0 µg/m³, 1.8× usual Asakuchi, 3 November: 26.5 µg/m³, 2.7× usual Asakuchi, 4 November: 41.0 µg/m³, 4.2× usual Asakuchi, 5 November: 22.8 µg/m³, 2.4× usual Asakuchi, 6 November: 8.9 µg/m³, 0.9× usual Asakuchi, 7 November: 10.2 µg/m³, 1.1× usual Asakuchi, 8 November: 11.2 µg/m³, 1.2× usual Kasaoka Kasaoka, 30 October: 12.5 µg/m³, 1.3× usual Kasaoka, 31 October: 12.8 µg/m³, 1.3× usual Kasaoka, 1 November: 16.8 µg/m³, 1.7× usual Kasaoka, 2 November: 19.4 µg/m³, 1.9× usual Kasaoka, 3 November: 31.3 µg/m³, 3.1× usual Kasaoka, 4 November: 39.2 µg/m³, 3.9× usual Kasaoka, 5 November: 27.3 µg/m³, 2.7× usual Kasaoka, 6 November: 10.5 µg/m³, 1.1× usual Kasaoka, 7 November: 12.8 µg/m³, 1.3× usual Kasaoka, 8 November: 10.5 µg/m³, 1.1× usual Kōnosu Kōnosu, 30 October: 6.0 µg/m³, 0.6× usual Kōnosu, 31 October: 11.7 µg/m³, 1.2× usual Kōnosu, 1 November: 15.4 µg/m³, 1.6× usual Kōnosu, 2 November: 21.5 µg/m³, 2.3× usual Kōnosu, 3 November: 36.9 µg/m³, 3.9× usual Kōnosu, 4 November: 34.3 µg/m³, 3.6× usual Kōnosu, 5 November: 22.2 µg/m³, 2.4× usual Kōnosu, 6 November: 11.9 µg/m³, 1.3× usual Kōnosu, 7 November: 6.7 µg/m³, 0.7× usual Kōnosu, 8 November: 8.5 µg/m³, 0.9× usual Hanyū Hanyū, 30 October: 6.1 µg/m³, 0.7× usual Hanyū, 31 October: 14.5 µg/m³, 1.6× usual Hanyū, 1 November: 19.5 µg/m³, 2.2× usual Hanyū, 2 November: 22.1 µg/m³, 2.5× usual Hanyū, 3 November: 27.6 µg/m³, 3.1× usual Hanyū, 4 November: 36.3 µg/m³, 4.1× usual Hanyū, 5 November: 24.9 µg/m³, 2.8× usual Hanyū, 6 November: 14.5 µg/m³, 1.6× usual Hanyū, 7 November: 7.2 µg/m³, 0.8× usual Hanyū, 8 November: 9.0 µg/m³, 1.0× usual Gyōda Gyōda, 30 October: 7.2 µg/m³, 0.7× usual Gyōda, 31 October: 14.3 µg/m³, 1.4× usual Gyōda, 1 November: 18.8 µg/m³, 1.8× usual Gyōda, 2 November: 23.0 µg/m³, 2.2× usual Gyōda, 3 November: 28.2 µg/m³, 2.7× usual Gyōda, 4 November: 35.9 µg/m³, 3.4× usual Gyōda, 5 November: 25.7 µg/m³, 2.4× usual Gyōda, 6 November: 19.5 µg/m³, 1.9× usual Gyōda, 7 November: 10.0 µg/m³, 1.0× usual Gyōda, 8 November: 9.2 µg/m³, 0.9× usual Kameyama Kameyama, 30 October: 6.1 µg/m³, 0.8× usual Kameyama, 31 October: 9.5 µg/m³, 1.2× usual Kameyama, 1 November: 14.0 µg/m³, 1.7× usual Kameyama, 2 November: 19.8 µg/m³, 2.4× usual Kameyama, 3 November: 28.7 µg/m³, 3.5× usual Kameyama, 4 November: 35.7 µg/m³, 4.4× usual Kameyama, 5 November: 24.7 µg/m³, 3.0× usual Kameyama, 6 November: 9.1 µg/m³, 1.1× usual Kameyama, 7 November: 8.8 µg/m³, 1.1× usual Kameyama, 8 November: 8.4 µg/m³, 1.0× usual Yatomi Yatomi, 30 October: no reading Yatomi, 31 October: 10.1 µg/m³, 0.8× usual Yatomi, 1 November: 16.4 µg/m³, 1.3× usual Yatomi, 2 November: 22.6 µg/m³, 1.8× usual Yatomi, 3 November: 28.2 µg/m³, 2.3× usual Yatomi, 4 November: 35.3 µg/m³, 2.9× usual Yatomi, 5 November: 31.5 µg/m³, 2.6× usual Yatomi, 6 November: 9.8 µg/m³, 0.8× usual Yatomi, 7 November: 8.4 µg/m³, 0.7× usual Yatomi, 8 November: 9.1 µg/m³, 0.7× usual Sōja Sōja, 30 October: 9.9 µg/m³, 1.0× usual Sōja, 31 October: 12.1 µg/m³, 1.3× usual Sōja, 1 November: 15.3 µg/m³, 1.6× usual Sōja, 2 November: 19.4 µg/m³, 2.0× usual Sōja, 3 November: 34.8 µg/m³, 3.7× usual Sōja, 4 November: 34.7 µg/m³, 3.7× usual Sōja, 5 November: 21.6 µg/m³, 2.3× usual Sōja, 6 November: 7.7 µg/m³, 0.8× usual Sōja, 7 November: 9.8 µg/m³, 1.0× usual Sōja, 8 November: 11.2 µg/m³, 1.2× usual Sano Sano, 30 October: 6.0 µg/m³, 0.7× usual Sano, 31 October: 12.0 µg/m³, 1.4× usual Sano, 1 November: 14.2 µg/m³, 1.6× usual Sano, 2 November: 17.3 µg/m³, 2.0× usual Sano, 3 November: 26.0 µg/m³, 3.0× usual Sano, 4 November: 34.5 µg/m³, 4.0× usual Sano, 5 November: 22.8 µg/m³, 2.6× usual Sano, 6 November: 12.9 µg/m³, 1.5× usual Sano, 7 November: 7.0 µg/m³, 0.8× usual Sano, 8 November: 7.6 µg/m³, 0.9× usual Suzuka Suzuka, 30 October: 6.7 µg/m³, 0.7× usual Suzuka, 31 October: 9.8 µg/m³, 1.1× usual Suzuka, 1 November: 15.0 µg/m³, 1.6× usual Suzuka, 2 November: 19.8 µg/m³, 2.2× usual Suzuka, 3 November: 27.6 µg/m³, 3.0× usual Suzuka, 4 November: 34.4 µg/m³, 3.8× usual Suzuka, 5 November: 23.2 µg/m³, 2.5× usual Suzuka, 6 November: 11.0 µg/m³, 1.2× usual Suzuka, 7 November: 9.7 µg/m³, 1.1× usual Suzuka, 8 November: 10.5 µg/m³, 1.2× usual Shimo-tsuma Shimo-tsuma, 30 October: 6.3 µg/m³, 0.7× usual Shimo-tsuma, 31 October: 10.5 µg/m³, 1.2× usual Shimo-tsuma, 1 November: 15.1 µg/m³, 1.7× usual Shimo-tsuma, 2 November: 22.7 µg/m³, 2.5× usual Shimo-tsuma, 3 November: 25.0 µg/m³, 2.7× usual Shimo-tsuma, 4 November: 34.4 µg/m³, 3.8× usual Shimo-tsuma, 5 November: 17.9 µg/m³, 2.0× usual Shimo-tsuma, 6 November: 9.3 µg/m³, 1.0× usual Shimo-tsuma, 7 November: 4.7 µg/m³, 0.5× usual Shimo-tsuma, 8 November: 6.4 µg/m³, 0.7× usual Handa Handa, 30 October: no reading Handa, 31 October: 12.0 µg/m³, 1.4× usual Handa, 1 November: 16.3 µg/m³, 1.9× usual Handa, 2 November: 21.2 µg/m³, 2.4× usual Handa, 3 November: 27.1 µg/m³, 3.1× usual Handa, 4 November: 34.3 µg/m³, 3.9× usual Handa, 5 November: 26.0 µg/m³, 3.0× usual Handa, 6 November: 8.1 µg/m³, 0.9× usual Handa, 7 November: 7.3 µg/m³, 0.8× usual Handa, 8 November: 8.5 µg/m³, 1.0× usual Tsu Tsu, 30 October: 5.4 µg/m³, 0.7× usual Tsu, 31 October: 8.4 µg/m³, 1.0× usual Tsu, 1 November: 13.6 µg/m³, 1.6× usual Tsu, 2 November: 18.2 µg/m³, 2.2× usual Tsu, 3 November: 26.1 µg/m³, 3.1× usual Tsu, 4 November: 33.8 µg/m³, 4.1× usual Tsu, 5 November: 23.2 µg/m³, 2.8× usual Tsu, 6 November: 6.3 µg/m³, 0.8× usual Tsu, 7 November: 9.2 µg/m³, 1.1× usual Tsu, 8 November: 8.0 µg/m³, 1.0× usual Igusa Igusa, 30 October: 7.1 µg/m³, 0.8× usual Igusa, 31 October: 12.4 µg/m³, 1.3× usual Igusa, 1 November: 14.8 µg/m³, 1.6× usual Igusa, 2 November: 21.9 µg/m³, 2.4× usual Igusa, 3 November: 26.5 µg/m³, 2.8× usual Igusa, 4 November: 33.5 µg/m³, 3.6× usual Igusa, 5 November: 31.1 µg/m³, 3.3× usual Igusa, 6 November: 12.2 µg/m³, 1.3× usual Igusa, 7 November: 7.2 µg/m³, 0.8× usual Igusa, 8 November: 9.7 µg/m³, 1.0× usual Ageo Ageo, 30 October: 5.8 µg/m³, 0.7× usual Ageo, 31 October: 11.9 µg/m³, 1.4× usual Ageo, 1 November: 15.0 µg/m³, 1.8× usual Ageo, 2 November: 22.9 µg/m³, 2.7× usual Ageo, 3 November: 28.4 µg/m³, 3.3× usual Ageo, 4 November: 33.4 µg/m³, 3.9× usual Ageo, 5 November: 25.8 µg/m³, 3.0× usual Ageo, 6 November: 10.2 µg/m³, 1.2× usual Ageo, 7 November: 8.2 µg/m³, 1.0× usual Ageo, 8 November: 8.3 µg/m³, 1.0× usual Yokkaichi Yokkaichi, 30 October: 6.9 µg/m³, 0.8× usual Yokkaichi, 31 October: 10.4 µg/m³, 1.1× usual Yokkaichi, 1 November: no reading Yokkaichi, 2 November: 20.2 µg/m³, 2.2× usual Yokkaichi, 3 November: 26.5 µg/m³, 2.9× usual Yokkaichi, 4 November: 33.4 µg/m³, 3.6× usual Yokkaichi, 5 November: 22.7 µg/m³, 2.5× usual Yokkaichi, 6 November: 12.1 µg/m³, 1.3× usual Yokkaichi, 7 November: 10.2 µg/m³, 1.1× usual Yokkaichi, 8 November: 9.3 µg/m³, 1.0× usual Tahara Tahara, 30 October: no reading Tahara, 31 October: 9.0 µg/m³, 1.0× usual Tahara, 1 November: 14.0 µg/m³, 1.5× usual Tahara, 2 November: 19.9 µg/m³, 2.2× usual Tahara, 3 November: 29.8 µg/m³, 3.2× usual Tahara, 4 November: 33.2 µg/m³, 3.6× usual Tahara, 5 November: 22.2 µg/m³, 2.4× usual Tahara, 6 November: 10.0 µg/m³, 1.1× usual Tahara, 7 November: 9.9 µg/m³, 1.1× usual Tahara, 8 November: 9.7 µg/m³, 1.1× usual Matsusaka Matsusaka, 30 October: 6.2 µg/m³, 0.7× usual Matsusaka, 31 October: 9.3 µg/m³, 1.1× usual Matsusaka, 1 November: 13.4 µg/m³, 1.6× usual Matsusaka, 2 November: 19.2 µg/m³, 2.3× usual Matsusaka, 3 November: 26.9 µg/m³, 3.2× usual Matsusaka, 4 November: 33.2 µg/m³, 4.0× usual Matsusaka, 5 November: 28.9 µg/m³, 3.4× usual Matsusaka, 6 November: 3.2 µg/m³, 0.4× usual Matsusaka, 7 November: 9.8 µg/m³, 1.2× usual Matsusaka, 8 November: 8.3 µg/m³, 1.0× usual Kashiwara Kashiwara, 30 October: 8.4 µg/m³, 1.0× usual Kashiwara, 31 October: 9.5 µg/m³, 1.1× usual Kashiwara, 1 November: 14.6 µg/m³, 1.7× usual Kashiwara, 2 November: 17.5 µg/m³, 2.0× usual Kashiwara, 3 November: 33.0 µg/m³, 3.8× usual Kashiwara, 4 November: 26.2 µg/m³, 3.0× usual Kashiwara, 5 November: 19.8 µg/m³, 2.3× usual Kashiwara, 6 November: 6.3 µg/m³, 0.7× usual Kashiwara, 7 November: 9.7 µg/m³, 1.1× usual Kashiwara, 8 November: 9.3 µg/m³, 1.1× usual Kan’onjichō Kan’onjichō, 30 October: 9.0 µg/m³, 0.9× usual Kan’onjichō, 31 October: 12.0 µg/m³, 1.2× usual Kan’onjichō, 1 November: 17.6 µg/m³, 1.8× usual Kan’onjichō, 2 November: 20.1 µg/m³, 2.0× usual Kan’onjichō, 3 November: 31.6 µg/m³, 3.2× usual Kan’onjichō, 4 November: 33.0 µg/m³, 3.3× usual Kan’onjichō, 5 November: 29.9 µg/m³, 3.0× usual Kan’onjichō, 6 November: no reading Kan’onjichō, 7 November: no reading Kan’onjichō, 8 November: 13.7 µg/m³, 1.4× usual Kasukabe Kasukabe, 30 October: 6.3 µg/m³, 0.7× usual Kasukabe, 31 October: 12.2 µg/m³, 1.3× usual Kasukabe, 1 November: 17.0 µg/m³, 1.8× usual Kasukabe, 2 November: 23.2 µg/m³, 2.5× usual Kasukabe, 3 November: 28.9 µg/m³, 3.1× usual Kasukabe, 4 November: 32.9 µg/m³, 3.5× usual Kasukabe, 5 November: 22.0 µg/m³, 2.4× usual Kasukabe, 6 November: 10.9 µg/m³, 1.2× usual Kasukabe, 7 November: 7.8 µg/m³, 0.8× usual Kasukabe, 8 November: 10.1 µg/m³, 1.1× usual Kumagaya Kumagaya, 30 October: 6.2 µg/m³, 0.7× usual Kumagaya, 31 October: 11.6 µg/m³, 1.4× usual Kumagaya, 1 November: 15.5 µg/m³, 1.8× usual Kumagaya, 2 November: 21.3 µg/m³, 2.5× usual Kumagaya, 3 November: 27.2 µg/m³, 3.2× usual Kumagaya, 4 November: 32.7 µg/m³, 3.8× usual Kumagaya, 5 November: 23.5 µg/m³, 2.8× usual Kumagaya, 6 November: 19.1 µg/m³, 2.2× usual Kumagaya, 7 November: 10.8 µg/m³, 1.3× usual Kumagaya, 8 November: 7.7 µg/m³, 0.9× usual Nara-shi Nara-shi, 30 October: 7.7 µg/m³, 1.0× usual Nara-shi, 31 October: 10.4 µg/m³, 1.4× usual Nara-shi, 1 November: 16.4 µg/m³, 2.2× usual Nara-shi, 2 November: 21.8 µg/m³, 2.9× usual Nara-shi, 3 November: 25.7 µg/m³, 3.4× usual Nara-shi, 4 November: 32.1 µg/m³, 4.3× usual Nara-shi, 5 November: 29.5 µg/m³, 3.9× usual Nara-shi, 6 November: 6.2 µg/m³, 0.8× usual Nara-shi, 7 November: 9.9 µg/m³, 1.3× usual Nara-shi, 8 November: 9.1 µg/m³, 1.2× usual Menuma Menuma, 30 October: 6.7 µg/m³, 0.8× usual Menuma, 31 October: 12.3 µg/m³, 1.4× usual Menuma, 1 November: 18.6 µg/m³, 2.2× usual Menuma, 2 November: 21.8 µg/m³, 2.5× usual Menuma, 3 November: 27.6 µg/m³, 3.2× usual Menuma, 4 November: 31.6 µg/m³, 3.7× usual Menuma, 5 November: 24.7 µg/m³, 2.9× usual Menuma, 6 November: 21.6 µg/m³, 2.5× usual Menuma, 7 November: 11.4 µg/m³, 1.3× usual Menuma, 8 November: 9.3 µg/m³, 1.1× usual Kodamachō-kodamamin… Kodamachō-kodamaminami, 30 October: 6.4 µg/m³, 0.8× usual Kodamachō-kodamaminami, 31 October: 11.8 µg/m³, 1.5× usual Kodamachō-kodamaminami, 1 November: 15.2 µg/m³, 1.9× usual Kodamachō-kodamaminami, 2 November: 19.5 µg/m³, 2.4× usual Kodamachō-kodamaminami, 3 November: 26.5 µg/m³, 3.3× usual Kodamachō-kodamaminami, 4 November: 31.6 µg/m³, 4.0× usual Kodamachō-kodamaminami, 5 November: 25.3 µg/m³, 3.2× usual Kodamachō-kodamaminami, 6 November: 24.2 µg/m³, 3.0× usual Kodamachō-kodamaminami, 7 November: 11.0 µg/m³, 1.4× usual Kodamachō-kodamaminami, 8 November: 8.0 µg/m³, 1.0× usual Noda Noda, 30 October: 5.3 µg/m³, 0.5× usual Noda, 31 October: 11.4 µg/m³, 1.1× usual Noda, 1 November: 15.9 µg/m³, 1.6× usual Noda, 2 November: 22.1 µg/m³, 2.2× usual Noda, 3 November: 26.3 µg/m³, 2.6× usual Noda, 4 November: 31.6 µg/m³, 3.2× usual Noda, 5 November: 18.6 µg/m³, 1.9× usual Noda, 6 November: 8.9 µg/m³, 0.9× usual Noda, 7 November: 5.8 µg/m³, 0.6× usual Noda, 8 November: 5.9 µg/m³, 0.6× usual Tsuyama Tsuyama, 30 October: 5.9 µg/m³, 0.6× usual Tsuyama, 31 October: 8.6 µg/m³, 0.9× usual Tsuyama, 1 November: 13.8 µg/m³, 1.5× usual Tsuyama, 2 November: 21.9 µg/m³, 2.4× usual Tsuyama, 3 November: 25.7 µg/m³, 2.8× usual Tsuyama, 4 November: 31.6 µg/m³, 3.4× usual Tsuyama, 5 November: 20.7 µg/m³, 2.2× usual Tsuyama, 6 November: 7.8 µg/m³, 0.8× usual Tsuyama, 7 November: 9.2 µg/m³, 1.0× usual Tsuyama, 8 November: 9.3 µg/m³, 1.0× usual Zentsujichó Zentsujichó, 30 October: 6.2 µg/m³, 0.7× usual Zentsujichó, 31 October: 9.6 µg/m³, 1.1× usual Zentsujichó, 1 November: 13.5 µg/m³, 1.6× usual Zentsujichó, 2 November: 14.9 µg/m³, 1.8× usual Zentsujichó, 3 November: 31.5 µg/m³, 3.8× usual Zentsujichó, 4 November: 27.7 µg/m³, 3.3× usual Zentsujichó, 5 November: 25.3 µg/m³, 3.0× usual Zentsujichó, 6 November: 7.3 µg/m³, 0.9× usual Zentsujichó, 7 November: 10.1 µg/m³, 1.2× usual Zentsujichó, 8 November: 8.0 µg/m³, 1.0× usual Sōka Sōka, 30 October: 6.0 µg/m³, 0.6× usual Sōka, 31 October: 11.5 µg/m³, 1.2× usual Sōka, 1 November: 16.3 µg/m³, 1.7× usual Sōka, 2 November: 20.5 µg/m³, 2.1× usual Sōka, 3 November: 31.5 µg/m³, 3.2× usual Sōka, 4 November: 26.7 µg/m³, 2.7× usual Sōka, 5 November: 18.5 µg/m³, 1.9× usual Sōka, 6 November: 10.0 µg/m³, 1.0× usual Sōka, 7 November: 8.7 µg/m³, 0.9× usual Sōka, 8 November: 7.6 µg/m³, 0.8× usual Tokoname Tokoname, 30 October: no reading Tokoname, 31 October: 8.2 µg/m³, 1.0× usual Tokoname, 1 November: 12.4 µg/m³, 1.6× usual Tokoname, 2 November: 20.8 µg/m³, 2.6× usual Tokoname, 3 November: 26.8 µg/m³, 3.4× usual Tokoname, 4 November: 31.3 µg/m³, 4.0× usual Tokoname, 5 November: 29.9 µg/m³, 3.8× usual Tokoname, 6 November: 6.6 µg/m³, 0.8× usual Tokoname, 7 November: 6.4 µg/m³, 0.8× usual Tokoname, 8 November: 6.2 µg/m³, 0.8× usual Kukichūō Kukichūō, 30 October: 6.4 µg/m³, 0.7× usual Kukichūō, 31 October: 11.6 µg/m³, 1.2× usual Kukichūō, 1 November: 17.0 µg/m³, 1.8× usual Kukichūō, 2 November: 22.0 µg/m³, 2.4× usual Kukichūō, 3 November: 28.5 µg/m³, 3.1× usual Kukichūō, 4 November: 31.0 µg/m³, 3.3× usual Kukichūō, 5 November: 21.0 µg/m³, 2.3× usual Kukichūō, 6 November: 11.5 µg/m³, 1.2× usual Kukichūō, 7 November: 6.6 µg/m³, 0.7× usual Kukichūō, 8 November: 7.7 µg/m³, 0.8× usual Chiryū Chiryū, 30 October: no reading Chiryū, 31 October: 8.2 µg/m³, 1.0× usual Chiryū, 1 November: 12.6 µg/m³, 1.5× usual Chiryū, 2 November: 18.8 µg/m³, 2.2× usual Chiryū, 3 November: 25.2 µg/m³, 3.0× usual Chiryū, 4 November: 30.9 µg/m³, 3.6× usual Chiryū, 5 November: 22.6 µg/m³, 2.7× usual Chiryū, 6 November: 5.8 µg/m³, 0.7× usual Chiryū, 7 November: 9.6 µg/m³, 1.1× usual Chiryū, 8 November: 8.6 µg/m³, 1.0× usual Tsuchiura Tsuchiura, 30 October: 6.2 µg/m³, 0.6× usual Tsuchiura, 31 October: 8.9 µg/m³, 0.9× usual Tsuchiura, 1 November: 12.4 µg/m³, 1.2× usual Tsuchiura, 2 November: 21.9 µg/m³, 2.2× usual Tsuchiura, 3 November: 28.9 µg/m³, 2.9× usual Tsuchiura, 4 November: 30.6 µg/m³, 3.1× usual Tsuchiura, 5 November: 12.7 µg/m³, 1.3× usual Tsuchiura, 6 November: 9.1 µg/m³, 0.9× usual Tsuchiura, 7 November: 4.7 µg/m³, 0.5× usual Tsuchiura, 8 November: 7.9 µg/m³, 0.8× usual Tamano Tamano, 30 October: 6.6 µg/m³, 0.7× usual Tamano, 31 October: 10.2 µg/m³, 1.1× usual Tamano, 1 November: 17.0 µg/m³, 1.8× usual Tamano, 2 November: 19.5 µg/m³, 2.0× usual Tamano, 3 November: 27.3 µg/m³, 2.8× usual Tamano, 4 November: 30.6 µg/m³, 3.2× usual Tamano, 5 November: 20.6 µg/m³, 2.1× usual Tamano, 6 November: 6.3 µg/m³, 0.7× usual Tamano, 7 November: 11.4 µg/m³, 1.2× usual Tamano, 8 November: 7.6 µg/m³, 0.8× usual Saitama Saitama, 30 October: 5.6 µg/m³, 0.6× usual Saitama, 31 October: 10.5 µg/m³, 1.2× usual Saitama, 1 November: 13.3 µg/m³, 1.5× usual Saitama, 2 November: 19.3 µg/m³, 2.1× usual Saitama, 3 November: 26.2 µg/m³, 2.9× usual Saitama, 4 November: 30.5 µg/m³, 3.4× usual Saitama, 5 November: 21.0 µg/m³, 2.3× usual Saitama, 6 November: 9.6 µg/m³, 1.1× usual Saitama, 7 November: 6.8 µg/m³, 0.8× usual Saitama, 8 November: 7.1 µg/m³, 0.8× usual Naka Naka, 30 October: 6.5 µg/m³, 0.7× usual Naka, 31 October: 10.1 µg/m³, 1.1× usual Naka, 1 November: 13.9 µg/m³, 1.5× usual Naka, 2 November: 23.5 µg/m³, 2.6× usual Naka, 3 November: 28.0 µg/m³, 3.1× usual Naka, 4 November: 30.4 µg/m³, 3.3× usual Naka, 5 November: 13.7 µg/m³, 1.5× usual Naka, 6 November: 9.9 µg/m³, 1.1× usual Naka, 7 November: 6.6 µg/m³, 0.7× usual Naka, 8 November: 8.5 µg/m³, 0.9× usual Kawaguchi Kawaguchi, 30 October: 5.6 µg/m³, 0.7× usual Kawaguchi, 31 October: 11.7 µg/m³, 1.4× usual Kawaguchi, 1 November: 13.8 µg/m³, 1.6× usual Kawaguchi, 2 November: 19.7 µg/m³, 2.3× usual Kawaguchi, 3 November: 26.0 µg/m³, 3.0× usual Kawaguchi, 4 November: 30.2 µg/m³, 3.5× usual Kawaguchi, 5 November: 21.3 µg/m³, 2.5× usual Kawaguchi, 6 November: 9.1 µg/m³, 1.1× usual Kawaguchi, 7 November: 8.6 µg/m³, 1.0× usual Kawaguchi, 8 November: 8.1 µg/m³, 0.9× usual Kashihara-shi Kashihara-shi, 30 October: 8.0 µg/m³, 1.0× usual Kashihara-shi, 31 October: 10.5 µg/m³, 1.3× usual Kashihara-shi, 1 November: 16.2 µg/m³, 1.9× usual Kashihara-shi, 2 November: 21.3 µg/m³, 2.5× usual Kashihara-shi, 3 November: 29.5 µg/m³, 3.5× usual Kashihara-shi, 4 November: 27.8 µg/m³, 3.3× usual Kashihara-shi, 5 November: 21.2 µg/m³, 2.5× usual Kashihara-shi, 6 November: 8.2 µg/m³, 1.0× usual Kashihara-shi, 7 November: 9.9 µg/m³, 1.2× usual Kashihara-shi, 8 November: 10.4 µg/m³, 1.2× usual Asaka Asaka, 30 October: no reading Asaka, 31 October: 11.3 µg/m³, 1.3× usual Asaka, 1 November: 13.5 µg/m³, 1.6× usual Asaka, 2 November: 20.4 µg/m³, 2.4× usual Asaka, 3 November: 25.0 µg/m³, 2.9× usual Asaka, 4 November: 29.3 µg/m³, 3.4× usual Asaka, 5 November: 24.7 µg/m³, 2.9× usual Asaka, 6 November: 9.1 µg/m³, 1.1× usual Asaka, 7 November: 7.8 µg/m³, 0.9× usual Asaka, 8 November: 7.7 µg/m³, 0.9× usual Hashima Hashima, 30 October: 3.7 µg/m³, 0.5× usual Hashima, 31 October: 6.9 µg/m³, 0.8× usual Hashima, 1 November: 9.2 µg/m³, 1.1× usual Hashima, 2 November: 16.2 µg/m³, 2.0× usual Hashima, 3 November: 26.1 µg/m³, 3.2× usual Hashima, 4 November: 29.0 µg/m³, 3.5× usual Hashima, 5 November: 27.9 µg/m³, 3.4× usual Hashima, 6 November: 9.6 µg/m³, 1.2× usual Hashima, 7 November: 7.6 µg/m³, 0.9× usual Hashima, 8 November: 6.9 µg/m³, 0.8× usual Chikugo Chikugo, 30 October: 7.7 µg/m³, 0.7× usual Chikugo, 31 October: 17.1 µg/m³, 1.5× usual Chikugo, 1 November: 18.6 µg/m³, 1.6× usual Chikugo, 2 November: 21.0 µg/m³, 1.8× usual Chikugo, 3 November: 24.3 µg/m³, 2.1× usual Chikugo, 4 November: 32.8 µg/m³, 2.9× usual Chikugo, 5 November: 24.0 µg/m³, 2.1× usual Chikugo, 6 November: 9.1 µg/m³, 0.8× usual Chikugo, 7 November: 9.7 µg/m³, 0.8× usual Chikugo, 8 November: 12.6 µg/m³, 1.1× usual Higashi-Matsuyama Higashi-Matsuyama, 30 October: 6.5 µg/m³, 0.8× usual Higashi-Matsuyama, 31 October: 11.7 µg/m³, 1.4× usual Higashi-Matsuyama, 1 November: 15.6 µg/m³, 1.8× usual Higashi-Matsuyama, 2 November: 20.6 µg/m³, 2.4× usual Higashi-Matsuyama, 3 November: 24.4 µg/m³, 2.8× usual Higashi-Matsuyama, 4 November: 32.7 µg/m³, 3.8× usual Higashi-Matsuyama, 5 November: 29.7 µg/m³, 3.5× usual Higashi-Matsuyama, 6 November: 17.6 µg/m³, 2.0× usual Higashi-Matsuyama, 7 November: 8.5 µg/m³, 1.0× usual Higashi-Matsuyama, 8 November: 8.3 µg/m³, 1.0× usual Sakai-nakajima Sakai-nakajima, 30 October: 6.0 µg/m³, 0.7× usual Sakai-nakajima, 31 October: 11.0 µg/m³, 1.4× usual Sakai-nakajima, 1 November: 15.0 µg/m³, 1.9× usual Sakai-nakajima, 2 November: 20.1 µg/m³, 2.5× usual Sakai-nakajima, 3 November: 24.5 µg/m³, 3.0× usual Sakai-nakajima, 4 November: 32.4 µg/m³, 4.0× usual Sakai-nakajima, 5 November: 25.2 µg/m³, 3.1× usual Sakai-nakajima, 6 November: 22.4 µg/m³, 2.8× usual Sakai-nakajima, 7 November: 10.2 µg/m³, 1.3× usual Sakai-nakajima, 8 November: 8.1 µg/m³, 1.0× usual Bandō Bandō, 30 October: 5.5 µg/m³, 0.7× usual Bandō, 31 October: 10.8 µg/m³, 1.3× usual Bandō, 1 November: 13.4 µg/m³, 1.6× usual Bandō, 2 November: 21.6 µg/m³, 2.6× usual Bandō, 3 November: 23.9 µg/m³, 2.9× usual Bandō, 4 November: 31.8 µg/m³, 3.9× usual Bandō, 5 November: 21.1 µg/m³, 2.6× usual Bandō, 6 November: 10.6 µg/m³, 1.3× usual Bandō, 7 November: 5.3 µg/m³, 0.6× usual Bandō, 8 November: 6.3 µg/m³, 0.8× usual Kuwana Kuwana, 30 October: 5.6 µg/m³, 0.7× usual Kuwana, 31 October: 8.1 µg/m³, 1.0× usual Kuwana, 1 November: 13.6 µg/m³, 1.7× usual Kuwana, 2 November: 19.6 µg/m³, 2.5× usual Kuwana, 3 November: 24.5 µg/m³, 3.1× usual Kuwana, 4 November: 31.4 µg/m³, 4.0× usual Kuwana, 5 November: 24.0 µg/m³, 3.0× usual Kuwana, 6 November: 8.5 µg/m³, 1.1× usual Kuwana, 7 November: 8.3 µg/m³, 1.1× usual Kuwana, 8 November: 7.0 µg/m³, 0.9× usual Niiza Niiza, 30 October: 6.3 µg/m³, 0.7× usual Niiza, 31 October: 11.4 µg/m³, 1.3× usual Niiza, 1 November: 13.3 µg/m³, 1.5× usual Niiza, 2 November: 20.1 µg/m³, 2.3× usual Niiza, 3 November: 24.0 µg/m³, 2.7× usual Niiza, 4 November: 31.4 µg/m³, 3.6× usual Niiza, 5 November: 25.6 µg/m³, 2.9× usual Niiza, 6 November: 8.7 µg/m³, 1.0× usual Niiza, 7 November: 7.8 µg/m³, 0.9× usual Niiza, 8 November: 7.5 µg/m³, 0.9× usual Morohongō Morohongō, 30 October: 8.1 µg/m³, 1.0× usual Morohongō, 31 October: 10.8 µg/m³, 1.4× usual Morohongō, 1 November: 14.0 µg/m³, 1.8× usual Morohongō, 2 November: 18.1 µg/m³, 2.3× usual Morohongō, 3 November: 24.6 µg/m³, 3.2× usual Morohongō, 4 November: 30.5 µg/m³, 3.9× usual Morohongō, 5 November: 30.4 µg/m³, 3.9× usual Morohongō, 6 November: 19.3 µg/m³, 2.5× usual Morohongō, 7 November: 7.3 µg/m³, 0.9× usual Morohongō, 8 November: 7.3 µg/m³, 0.9× usual Oyama Oyama, 30 October: 5.8 µg/m³, 0.7× usual Oyama, 31 October: 11.5 µg/m³, 1.3× usual Oyama, 1 November: 17.5 µg/m³, 2.0× usual Oyama, 2 November: 19.0 µg/m³, 2.1× usual Oyama, 3 November: 21.6 µg/m³, 2.4× usual Oyama, 4 November: 29.9 µg/m³, 3.4× usual Oyama, 5 November: 16.6 µg/m³, 1.9× usual Oyama, 6 November: 11.7 µg/m³, 1.3× usual Oyama, 7 November: 4.3 µg/m³, 0.5× usual Oyama, 8 November: 8.0 µg/m³, 0.9× usual Gifu Gifu, 30 October: 4.5 µg/m³, 0.6× usual Gifu, 31 October: 9.1 µg/m³, 1.2× usual Gifu, 1 November: 11.0 µg/m³, 1.4× usual Gifu, 2 November: 18.1 µg/m³, 2.4× usual Gifu, 3 November: 23.8 µg/m³, 3.1× usual Gifu, 4 November: 28.9 µg/m³, 3.8× usual Gifu, 5 November: 29.8 µg/m³, 3.9× usual Gifu, 6 November: 8.9 µg/m³, 1.2× usual Gifu, 7 November: 7.1 µg/m³, 0.9× usual Gifu, 8 November: 8.0 µg/m³, 1.0× usual Nagoya Nagoya, 30 October: no reading Nagoya, 31 October: 8.9 µg/m³, 1.0× usual Nagoya, 1 November: 14.6 µg/m³, 1.7× usual Nagoya, 2 November: 20.3 µg/m³, 2.4× usual Nagoya, 3 November: 24.8 µg/m³, 2.9× usual Nagoya, 4 November: 29.7 µg/m³, 3.5× usual Nagoya, 5 November: 26.5 µg/m³, 3.1× usual Nagoya, 6 November: 6.2 µg/m³, 0.7× usual Nagoya, 7 November: 7.7 µg/m³, 0.9× usual Nagoya, 8 November: 7.9 µg/m³, 0.9× usual Inabe Inabe, 30 October: 5.1 µg/m³, 0.7× usual Inabe, 31 October: 9.5 µg/m³, 1.3× usual Inabe, 1 November: 12.5 µg/m³, 1.7× usual Inabe, 2 November: 18.0 µg/m³, 2.4× usual Inabe, 3 November: 23.5 µg/m³, 3.1× usual Inabe, 4 November: 29.6 µg/m³, 3.9× usual Inabe, 5 November: 21.1 µg/m³, 2.8× usual Inabe, 6 November: 8.5 µg/m³, 1.1× usual Inabe, 7 November: 8.5 µg/m³, 1.1× usual Inabe, 8 November: 8.0 µg/m³, 1.1× usual Toyohashi Toyohashi, 30 October: no reading Toyohashi, 31 October: 6.4 µg/m³, 0.9× usual Toyohashi, 1 November: 12.2 µg/m³, 1.7× usual Toyohashi, 2 November: 18.6 µg/m³, 2.6× usual Toyohashi, 3 November: 24.0 µg/m³, 3.4× usual Toyohashi, 4 November: 29.5 µg/m³, 4.2× usual Toyohashi, 5 November: 20.6 µg/m³, 2.9× usual Toyohashi, 6 November: 7.2 µg/m³, 1.0× usual Toyohashi, 7 November: 7.2 µg/m³, 1.0× usual Toyohashi, 8 November: 8.5 µg/m³, 1.2× usual Kawagoe Kawagoe, 30 October: 5.7 µg/m³, 0.8× usual Kawagoe, 31 October: 9.3 µg/m³, 1.2× usual Kawagoe, 1 November: 12.1 µg/m³, 1.6× usual Kawagoe, 2 November: 17.0 µg/m³, 2.2× usual Kawagoe, 3 November: 21.5 µg/m³, 2.8× usual Kawagoe, 4 November: 29.5 µg/m³, 3.9× usual Kawagoe, 5 November: 26.7 µg/m³, 3.5× usual Kawagoe, 6 November: 8.5 µg/m³, 1.1× usual Kawagoe, 7 November: 5.0 µg/m³, 0.7× usual Kawagoe, 8 November: 6.8 µg/m³, 0.9× usual Niihama Niihama, 30 October: 7.0 µg/m³, 0.7× usual Niihama, 31 October: 11.4 µg/m³, 1.1× usual Niihama, 1 November: 12.7 µg/m³, 1.2× usual Niihama, 2 November: 13.4 µg/m³, 1.3× usual Niihama, 3 November: 22.5 µg/m³, 2.2× usual Niihama, 4 November: 28.2 µg/m³, 2.7× usual Niihama, 5 November: 29.4 µg/m³, 2.8× usual Niihama, 6 November: 13.8 µg/m³, 1.3× usual Niihama, 7 November: 11.8 µg/m³, 1.1× usual Niihama, 8 November: 8.7 µg/m³, 0.8× usual Iruma Iruma, 30 October: 7.4 µg/m³, 0.9× usual Iruma, 31 October: 10.3 µg/m³, 1.3× usual Iruma, 1 November: 14.1 µg/m³, 1.7× usual Iruma, 2 November: 15.0 µg/m³, 1.9× usual Iruma, 3 November: 21.5 µg/m³, 2.7× usual Iruma, 4 November: 29.2 µg/m³, 3.6× usual Iruma, 5 November: 28.6 µg/m³, 3.5× usual Iruma, 6 November: 15.6 µg/m³, 1.9× usual Iruma, 7 November: 6.8 µg/m³, 0.8× usual Iruma, 8 November: 8.0 µg/m³, 1.0× usual Mizuho Mizuho, 30 October: 5.1 µg/m³, 0.7× usual Mizuho, 31 October: 8.4 µg/m³, 1.1× usual Mizuho, 1 November: 11.4 µg/m³, 1.5× usual Mizuho, 2 November: 15.2 µg/m³, 2.1× usual Mizuho, 3 November: 23.0 µg/m³, 3.1× usual Mizuho, 4 November: 29.0 µg/m³, 3.9× usual Mizuho, 5 November: 25.3 µg/m³, 3.4× usual Mizuho, 6 November: 10.5 µg/m³, 1.4× usual Mizuho, 7 November: 7.5 µg/m³, 1.0× usual Mizuho, 8 November: 7.7 µg/m³, 1.0× usual 30 Oct 31 1 Nov 2 3 4 5 6 7 8 The 60 cities with the highest readings of 131, 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
Kaizu Gifu, Japan 1 4 November 5.6 4.8× Kurashiki Okayama, Japan 3 3 November 9.6 4.8× Minokamo Gifu, Japan 1 4 November 5.4 4.7× Kakamigahara Gifu, Japan 2 5 November 6.1 4.4× Kameyama Mie, Japan 2 4 November 8.1 4.4× Nara-shi Nara, Japan 3 4 November 7.5 4.3× Asakuchi Okayama, Japan 2 4 November 9.7 4.2× Toyohashi Aichi, Japan 1 4 November 7.1 4.2× Hanyū Saitama, Japan 2 4 November 8.9 4.1× Inuyama Aichi, Japan 1 4 November 6.8 4.1× Tsu Mie, Japan 2 4 November 8.3 4.1× Chikusei Ibaraki, Japan 3 4 November 9.3 4.0× Tochigi Tochigi, Japan 1 4 November 6.5 4.0× Sakai-nakajima Gunma, Japan 2 4 November 8.1 4.0× Kuwana Mie, Japan 1 4 November 7.9 4.0× Sano Tochigi, Japan 2 4 November 8.7 4.0× Tokoname Aichi, Japan 3 4 November 7.9 4.0× Matsusaka Mie, Japan 3 4 November 8.4 4.0× Kodamachō-kodamaminami Saitama, Japan 3 4 November 8.0 4.0× Inabe Mie, Japan 1 4 November 7.5 3.9× Ōmihachiman Shiga, Japan 1 4 November 6.6 3.9× Ageo Saitama, Japan 3 4 November 8.5 3.9× Kōnosu Saitama, Japan 2 3 November 9.4 3.9× Kasaoka Okayama, Japan 3 4 November 10.0 3.9× Mizuho Gifu, Japan 2 4 November 7.4 3.9× Mooka Tochigi, Japan 1 4 November 7.0 3.9× Morohongō Saitama, Japan 2 4 November 7.8 3.9× Hekinan Aichi, Japan 1 4 November 6.6 3.9× Kitahama Shiga, Japan 1 4 November 6.4 3.9× Handa Aichi, Japan 3 4 November 8.8 3.9× Kawagoe Saitama, Japan 2 4 November 7.6 3.9× Bandō Ibaraki, Japan 1 4 November 8.2 3.9× Gifu Gifu, Japan 2 5 November 7.7 3.9× Hannō Saitama, Japan 2 5 November 7.3 3.8× Kumagaya Saitama, Japan 2 4 November 8.5 3.8× Ikoma Nara, Japan 1 5 November 6.9 3.8× Ama Aichi, Japan 1 4 November 7.6 3.8× Higashi-Matsuyama Saitama, Japan 2 4 November 8.6 3.8× Kashiwara Nara, Japan 2 3 November 8.7 3.8× Kosai Shizuoka, Japan 1 4 November 7.0 3.8× Suzuka Mie, Japan 2 4 November 9.1 3.8× Shimo-tsuma Ibaraki, Japan 2 4 November 9.1 3.8× Ashikaga Tochigi, Japan 1 4 November 7.5 3.8× Zentsujichó Kagawa, Japan 3 3 November 8.4 3.8× Anjō Aichi, Japan 1 4 November 7.7 3.7× Hokota Ibaraki, Japan 2 3 November 7.5 3.7× Nagai Yamagata, Japan 2 2 November 7.2 3.7× Kaminokawa Tochigi, Japan 1 4 November 7.5 3.7× Yorii Saitama, Japan 1 4 November 7.6 3.7× Menuma Saitama, Japan 2 4 November 8.6 3.7× Sōja Okayama, Japan 2 3 November 9.5 3.7× Ishioka Ibaraki, Japan 1 4 November 7.1 3.6× Kaminoma Aichi, Japan 3 4 November 7.6 3.6× Utsunomiya Tochigi, Japan 1 4 November 7.5 3.6× Iwakuni Yamaguchi, Japan 1 5 November 7.5 3.6× Chiryū Aichi, Japan 2 4 November 8.5 3.6× Takehara Hiroshima, Japan 1 5 November 7.4 3.6× Yokkaichi Mie, Japan 2 4 November 9.2 3.6× Tahara Aichi, Japan 2 4 November 9.2 3.6× Chigasaki Kanagawa, Japan 2 4 November 7.9 3.6× Iruma Saitama, Japan 2 4 November 8.1 3.6× Igusa Saitama, Japan 3 4 November 9.3 3.6× Youkaichi Shiga, Japan 2 4 November 7.7 3.6× Kariya Aichi, Japan 1 4 November 8.1 3.6× Kazo Saitama, Japan 3 4 November 10.6 3.6× Ichinomiya Aichi, Japan 1 4 November 7.2 3.6× Niiza Saitama, Japan 2 4 November 8.8 3.6× Mihara Hiroshima, Japan 1 5 November 7.9 3.5× Kusatsu Shiga, Japan 2 4 November 7.6 3.5× Kasukabe Saitama, Japan 2 4 November 9.3 3.5× Hashima Gifu, Japan 3 4 November 8.2 3.5× Jōsō Ibaraki, Japan 3 4 November 9.0 3.5× Honjō Saitama, Japan 1 4 November 7.6 3.5× Kashihara-shi Nara, Japan 2 3 November 8.4 3.5× Kawaguchi Saitama, Japan 2 4 November 8.6 3.5× Takashima Shiga, Japan 1 4 November 7.5 3.5× Nagoya Aichi, Japan 2 4 November 8.5 3.5× Mito Ibaraki, Japan 1 4 November 7.3 3.5× Koshigaya Saitama, Japan 2 4 November 8.3 3.5× Miura Kanagawa, Japan 1 3 November 7.3 3.5× Yachimata Chiba, Japan 1 3 November 7.6 3.4× Sakado Saitama, Japan 2 4 November 8.1 3.4× Gyōda Saitama, Japan 3 4 November 10.5 3.4× Yanai Yamaguchi, Japan 1 5 November 7.9 3.4× Narita Chiba, Japan 1 3 November 7.5 3.4× Asaka Saitama, Japan 2 4 November 8.6 3.4× Tsuyama Okayama, Japan 2 4 November 9.3 3.4× Saitama Saitama, Japan 2 4 November 9.0 3.4× Higashikurume Tokyo, Japan 1 4 November 7.5 3.4× Oyama Tochigi, Japan 1 4 November 8.9 3.4× Ōtake Hiroshima, Japan 1 5 November 7.9 3.4× Naka Ibaraki, Japan 2 4 November 9.1 3.3× Sekimachi Gifu, Japan 2 5 November 8.7 3.3× Kukichūō Saitama, Japan 2 4 November 9.3 3.3× Iga Mie, Japan 1 4 November 8.3 3.3× Kan’onjichō Kagawa, Japan 3 4 November 10.0 3.3× Okayama Okayama, Japan 2 4 November 8.4 3.3× Kure Hiroshima, Japan 1 5 November 8.8 3.3× Saikū Mie, Japan 1 4 November 8.3 3.3× Nishio Aichi, Japan 1 4 November 8.4 3.3× Sayama Saitama, Japan 1 4 November 7.8 3.2× Sōka Saitama, Japan 2 3 November 9.8 3.2× Takahashi Okayama, Japan 2 3 November 8.5 3.2× Toride Ibaraki, Japan 1 3 November 7.8 3.2× Yachiyo Chiba, Japan 1 3 November 8.6 3.2× Inzai Chiba, Japan 1 3 November 7.9 3.2× Tamano Okayama, Japan 2 4 November 9.6 3.2× Okazaki Aichi, Japan 1 4 November 8.4 3.2× Kakogawachō-honmachi Hyōgo, Japan 3 5 November 8.5 3.2× Noda Chiba, Japan 2 4 November 10.0 3.2× Tōkai Aichi, Japan 1 4 November 8.9 3.1× Yawata Kyoto, Japan 1 4 November 9.3 3.1× Iyo Ehime, Japan 1 5 November 9.0 3.1× Marugame Kagawa, Japan 1 4 November 8.3 3.1× Tsuchiura Ibaraki, Japan 2 4 November 10.0 3.1× Nabari Mie, Japan 2 4 November 8.7 3.0× Sugai Kyoto, Japan 2 5 November 8.6 3.0× Higashihiroshima Hiroshima, Japan 1 5 November 9.6 2.9× Shin’ichi Hiroshima, Japan 1 5 November 8.6 2.9× Yatomi Aichi, Japan 3 4 November 12.3 2.9× Chikugo Fukuoka, Japan 1 4 November 11.5 2.9× Niihama Ehime, Japan 2 5 November 10.4 2.8× Higashinozoe Hyōgo, Japan 2 4 November 9.2 2.8× Tenri Nara, Japan 2 4 November 9.1 2.8× Arao Kumamoto, Japan 1 4 November 9.7 2.7× Misato, Saitama Saitama, Japan 2 4 November 10.8 2.7× Uto Kumamoto, Japan 1 4 November 10.8 2.6× Bizen Okayama, Japan 1 3 November 10.8 2.5× Tanushimarumachi-toyoki Fukuoka, Japan 1 4 November 11.6 2.5× Saijō Ehime, Japan 1 4 November 10.4 2.5× Uekimachi-mōno Kumamoto, Japan 1 4 November 12.2 2.1×
Daily means in µg/m³. Usual: the city's median for this time of year (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that.
Against other episodes in Japan
The largest of 5 episodes in Japan since our records began, by cities reached.
Bars: cities reached; colour: the level of the episode's highest daily reading.
Use this page SmogRank, Japan, November 2023: 131 cities with PM2.5 at twice their usual or more, 2 to 5 November 2023, smogrank.com/episodes/2023-11-japan (accessed 2 October 2026).
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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.
