A doctor once told me that particulate matter (PM) measurement in Ukraine at the February 2022 start of the war with Russia was an average 24.2 µg/m3 (micrograms per cubic meter). This November ...

High AQI is linked to particulate matter exposure, which increases lung cancer risk and may impact cognitive health, akin to long-term effects seen in smokers. 'Rare Einstein Ring captured': James ...