SmogRank / World / Mexico / Nuevo León / July 2023

Most polluted cities in Nuevo León, Mexico, July 2023

No city in Nuevo León, Mexico had measurements on 70% of the days, so July 2023 has no board for Nuevo León, Mexico.

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.

Nuevo León has 9 cities ranked over the last 30 days, but none here: most of its monitors have no readings for July 2023 in OpenAQ's archive, where ours come from, or too few to rank. Cities missing from this board weren't clean, just not measured.

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

All cities in the world, July 2023 · All cities in Mexico, July 2023 · Nuevo León now