

so did they?
hourly CN air quality map, unit is µg/m³: https://www.air-level.com/
reuters says “The WHO considers PM2.5 concentrations above 50 micrograms per cubic metre “severe” air pollution.” but I couldn’t actually find that in WHO global air quality guidelines or anywhere else. china considers >500 µg/m³ “severe” (严重) and everything on the map would be below that



















Yandex is Russia’s Google, sold in 2024 to Russian oligarchs with close state ties, so I’d say it’s justified to criticize this particular sponsorship business