SmogRank / History / July 4, 2025
Most polluted cities on July 4, 2025
2,563 cities ranked by their average PM2.5 over the day; the worst was Linares, Chile, at 180.0 µg/m³. Each city's own local calendar day.
- Japan, June and July 202530 June to 10 July 2025, 11 days508 cities117Kōka
- North-eastern United States, July 20254 to 5 July 2025, 2 days57 cities74Elmwood Park
- South-western Chile, June and July 202529 June to 4 July 2025, 6 days17 cities291Osorno
Bad-air episodes during July 4, 2025. All episodes.
← Linares 180.0 µg/m³
150 µg/m³15 WHO 24-hour guideline
- 1LinaresMaule Region, Chile 25512.0×
- 2TemucoAraucania, Chile 24211.1×
- 3NacimientoBiobio, Chile 23210.4×
- 4NagapattinamTamil Nadu, India 2249.9×
- 5CoyhaiqueAysén, Chile 2159.3×
- 6VillarricaAraucania, Chile 2139.2×
- 7VirārMaharashtra, India 1937.7×
- 7CuricóMaule Region, Chile 1937.7×
- 9KobayashiMiyazaki, Japan 1897.3×
- 10TalcaMaule Region, Chile 1826.7×
- 11CuranilahueBiobio, Chile 1826.7×
- 12HualpénBiobio, Chile 1806.5×
- 13CoronelBiobio, Chile 1786.3×
- 14Sri GanganagarRajasthan, India 1776.2×
- 15Santa Anita - Los FicusLima region, Peru 1756.0×
- 16VrindāvanUttar Pradesh, India 1756.0×
- 17HualquiBiobio, Chile 1745.9×
- 18ChillánÑuble, Chile 1745.9×
- 19ValdiviaLos Ríos Region, Chile 1715.6×
- 20San CarlosÑuble, Chile 1715.6×
- 21BadgerAlaska, United States 1715.6×
- 22RengoO'Higgins Region, Chile 1685.3×
- 23KigaliKigali, Rwanda 1685.3×
- 24Faisalabadlow-cost sensorsPunjab, Pakistan 1675.2×
- 25Elmwood ParkIllinois, United States 1644.9×
- 26RancaguaO'Higgins Region, Chile 1634.9×
- 27TalcahuanoBiobio, Chile 1594.5×
- 28Lahorelow-cost sensorsPunjab, Pakistan 1594.5×
- 29OsornoLos Lagos Region, Chile 1584.4×
- 30TalaganteSantiago Metropolitan, Chile 1584.4×
- 31Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan 1574.3×
- 32Los ÁngelesBiobio, Chile 1574.2×
- 33CauquenesMaule Region, Chile 1554.1×
- 34Gujranwalalow-cost sensorsPunjab, Pakistan 1554.1×
- 35IkedachōTokushima, Japan 1554.0×
- 36SaikiOita, Japan 1544.0×
- 37DushanbeDushanbe, Tajikistan 1544.0×
- 38MaiharMadhya Pradesh, India 1544.0×
- 39ZentsujichóKagawa, Japan 1544.0×
- 39HiragiKagawa, Japan 1544.0×
- 41Sialkotlow-cost sensorsPunjab, Pakistan 1533.9×
- 42KhurjaUttar Pradesh, India 1533.9×
- 43ManamaManama, Bahrain 1533.9×
- 44Shin’ichiHiroshima, Japan 1523.8×
- 45NiihamaEhime, Japan 1513.7×
- 45ConcepciónBiobio, Chile 1513.7×
- 47NajafgarhDelhi, India 1483.6×
- 47OnomichiHiroshima, Japan 1483.6×
- 47MieOita, Japan 1483.6×
- 50ShinagawaEhime, Japan 1483.6×
- 51ShikokuchūōEhime, Japan 1483.6×
- 52KasaokaOkayama, Japan 1473.6×
- 53Dera MāndiDelhi, India 1463.6×
- 54MarugameKagawa, Japan 1453.6×
- 55Kan’onjichōKagawa, Japan 1443.5×
- 56Rawalpindilow-cost sensorsPunjab, Pakistan 1433.5×
- 56FukuyamaHiroshima, Japan 1433.5×
- 58BhiwadiRajasthan, India 1433.5×
- 58MimaTokushima, Japan 1433.5×
- 60GummidipundiTamil Nadu, India 1433.5×
- 60TakahashiOkayama, Japan 1433.5×
- 62CallaoCallao, Peru 1423.5×
- 63YaeHiroshima, Japan 1423.5×
- 64ŌitaOita, Japan 1423.5×
- 65HigashihiroshimaHiroshima, Japan 1423.5×
- 66NiimiOkayama, Japan 1413.5×
- 67SōjaOkayama, Japan 1403.4×
- 68TsuyamaOkayama, Japan 1393.4×
- 68ImabariEhime, Japan 1393.4×
- 68QuilpuéValparaiso, Chile 1393.4×
- 71KashiwaraNara, Japan 1393.4×
- 72Kashihara-shiNara, Japan 1383.4×
- 73IzumiOsaka, Japan 1383.4×
- 74Kawachi-NaganoOsaka, Japan 1373.4×
- 75SaijōEhime, Japan 1373.3×
- 76TakinomiyaKagawa, Japan 1373.3×
- 77GionHiroshima, Japan 1363.3×
- 78La UniónLos Ríos Region, Chile 1363.3×
- 78ChiguayanteBiobio, Chile 1363.3×
- 80TamanoOkayama, Japan 1353.3×
- 80OkayamaOkayama, Japan 1353.3×
- 82Dubailow-cost sensorsDubai, United Arab Emirates 1353.3×
- 82TakamatsuKagawa, Japan 1353.3×
- 82IkomaNara, Japan 1353.3×
- 85HājīpurBihar, India 1343.3×
- 86WashingtonDistrict of Columbia, United States 1343.3×
- 86AsoKumamoto, Japan 1343.3×
- 86BizenOkayama, Japan 1343.3×
- 89SantiagoSantiago Metropolitan, Chile 1333.2×
- 90Puerto AysénAysén, Chile 1303.1×
- 91BhelaiChhattisgarh, India 1293.1×
- 91TsukumiuraOita, Japan 1293.1×
- 91QuillotaValparaiso, Chile 1293.1×
- 94Puerto VarasLos Lagos Region, Chile 1293.1×
- 94SayamaOsaka, Japan 1293.1×
- 96TsurusakiOita, Japan 1293.1×
- 97SandachōHyōgo, Japan 1283.1×
- 97KurashikiOkayama, Japan 1283.1×
- 99ComptonCalifornia, United States 1273.1×
- 100Nara-shiNara, Japan 1273.1×
- 101MatsuyamaEhime, Japan 1263.0×
- 101FairbanksAlaska, United States 1263.0×
- 101TatsunoHyōgo, Japan 1263.0×
- 101San Francisco De BorjaLima region, Peru 1263.0×
- 105San Pedro de la PazBiobio, Chile 1253.0×
- 106MiharaHiroshima, Japan 1253.0×
- 107TenriNara, Japan 1243.0×
- 107MiyoshiHiroshima, Japan 1243.0×
- 109BeppuOita, Japan 1243.0×
- 110OnoHyōgo, Japan 1243.0×
- 110KureHiroshima, Japan 1243.0×
- 110Aya NagarDelhi, India 1243.0×
- 113RamanathapuramTamil Nadu, India 1233.0×
- 113LimaLima Province, Peru 1233.0×
- 113HabikinoOsaka, Japan 1233.0×
- 116CuddaloreTamil Nadu, India 1233.0×
- 117TondabayashichōOsaka, Japan 1233.0×
- 118Ueno-ebisumachiMie, Japan 1222.9×
- 118AsakuchiOkayama, Japan 1222.9×
- 120UwajimaEhime, Japan 1212.9×
- 121UsukiOita, Japan 1212.9×
- 121YufuOita, Japan 1212.9×
- 123Multanlow-cost sensorsPunjab, Pakistan 1212.9×
- 123QuinteroValparaiso, Chile 1212.9×
- 125AnaheimCalifornia, United States 1212.9×
- 126KizugawaKyoto, Japan 1202.9×
- 127HiroshimaHiroshima, Japan 1202.9×
- 128TakeharaHiroshima, Japan 1202.9×
- 129HōryūjiNara, Japan 1202.9×
- 129IyoEhime, Japan 1202.9×
- 129JōyōKyoto, Japan 1202.9×
- 132KarauliRajasthan, India 1192.9×
- 132YaoOsaka, Japan 1192.9×
- 134SakaiOsaka, Japan 1192.9×
- 135YawatahamaEhime, Japan 1192.8×
- 136NabariMie, Japan 1182.8×
- 137SugaiKyoto, Japan 1172.8×
- 138Kakogawachō-honmachiHyōgo, Japan 1172.8×
- 138HitaOita, Japan 1172.8×
- 140NobeokaMiyazaki, Japan 1172.8×
- 141ŌzuKumamoto, Japan 1162.8×
- 141La Providencia Siglo XXIHidalgo, Mexico 1162.8×
- 143VapiGujarat, India 1162.8×
- 144NakatsuOita, Japan 1162.8×
- 144HigashiosakaOsaka, Japan 1162.8×
- 144IgaMie, Japan 1162.8×
- 147Islamabadlow-cost sensorsIslamabad, Pakistan 1152.7×
- 147ShidoKagawa, Japan 1152.7×
- 149SamāstipurBihar, India 1152.7×
- 149HyūgaMiyazaki, Japan 1152.7×
- 151PāliRajasthan, India 1142.7×
- 152ToméBiobio, Chile 1142.7×
- 153ClarksvilleTennessee, United States 1142.7×
- 153WarrenOhio, United States 1142.7×
- 153GobindgarhPunjab, India 1142.7×
- 156HonmachiKumamoto, Japan 1132.7×
- 156ConcónValparaiso, Chile 1132.7×
- 158HigashinozoeHyōgo, Japan 1132.7×
- 159AioiHyōgo, Japan 1132.7×
- 160BawānaDelhi, India 1122.7×
- 160MinamataKumamoto, Japan 1122.7×
- 162KishiwadaOsaka, Japan 1122.7×
- 163Tottori-shiTottori, Japan 1112.6×
- 164KadapaAndhra Pradesh, India 1112.6×
- 165Puente AltoSantiago Metropolitan, Chile 1112.6×
- 166IwakuniYamaguchi, Japan 1102.6×
- 166HitoyoshiKumamoto, Japan 1102.6×
- 166FukuchiyamaKyoto, Japan 1102.6×
- 169AnanTokushima, Japan 1102.6×
- 170KhannaPunjab, India 1102.6×
- 170Tanushimarumachi-toyokiFukuoka, Japan 1102.6×
- 170KikuchiKumamoto, Japan 1102.6×
- 170KameokaKyoto, Japan 1102.6×
- 174CholulaPuebla, Mexico 1102.6×
- 174Viña del MarValparaiso, Chile 1102.6×
- 176NantanKyoto, Japan 1092.6×
- 177NagaonAssam, India 1092.6×
- 177AkashiHyōgo, Japan 1092.6×
- 177KariyaHyōgo, Japan 1092.6×
- 177MiddletownOhio, United States 1092.6×
- 181TanbaHyōgo, Japan 1082.6×
- 182YawataKyoto, Japan 1082.6×
- 183MiyakonojōMiyazaki, Japan 1082.6×
- 184AyabeKyoto, Japan 1082.5×
- 185KōtariKyoto, Japan 1072.5×
- 186UjiKyoto, Japan 1072.5×
- 186YoshinogawaTokushima, Japan 1072.5×
- 188DausaRajasthan, India 1062.5×
- 189LudhianaPunjab, India 1052.5×
- 189IkarugaHyōgo, Japan 1052.5×
- 191KyotoKyoto, Japan 1052.5×
- 192MifuneKumamoto, Japan 1042.5×
- 193KitahamaShiga, Japan 1042.5×
- 193KotōKumamoto, Japan 1042.5×
- 195AshburnVirginia, United States 1032.4×
- 196LindenNew Jersey, United States 1032.4×
- 197TakarazukaHyōgo, Japan 1022.4×
- 197ŌtakeHiroshima, Japan 1022.4×
- 199YanaiYamaguchi, Japan 1022.4×
- 199NishiwakiHyōgo, Japan 1022.4×
Top 200 of 2,563 shown.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Not covered: the government monitoring networks of China and Turkey, which publish no terms that let us reuse their readings. Most cities there are missing from this board, not clean. Why.
Use this board
SmogRank, most polluted cities, PM2.5, July 4, 2025, smogrank.com/history/2025-07-04 (accessed 2 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.