SmogRank / World / Russia / Kostroma Oblast / July 2023

Most polluted cities in Kostroma Oblast, Russia, July 2023

No city in Kostroma Oblast, Russia had measurements on 70% of the days, so July 2023 has no board for Kostroma Oblast, Russia.

OpenAQ's archive, where our readings come from, has almost none for one of these days. Cities in the United States and Europe have it from the EPA's and the European Environment Agency's own records of the same monitors; elsewhere a city's average is over its other days. Why.

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

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