Recently, scientists have discovered a chemical pathway that worsens air quality in extremely cold winters, involving the formation of hydroxymethanesulphonate in aerosol particles.
About HydroxyMethaneSulphonate (HMS)
HMS is a compound formed when formaldehyde reacts with sulfur dioxide in the presence of liquid water.
Formation in Cold Conditions:
Impact on Air Quality:
About Aerosols: Tiny solid or liquid particles suspended in the air, such as dust, smoke, fog, or chemical particles like sulfates and ammonium.
PM2.5: Fine particulate matter with a diameter less than 2.5 micrometers (µm), capable of penetrating deep into the respiratory tract, causing health issues.
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