Environmental Chemistry

Atmospheric Pollution by Particulate Pollutants

Smog: (Smoke + Fog)
1. Classical 2. Photo chemical
(i) Classical (Reducing / London)
eg: humid, cool climate reducing mixtures, smoke + SO2 + Fog
(ii) Photo chemical: (Oxidising / LA)
→ Fossil fuels (unburnt)
→ Hot, dry climate
→ Oxidising mixture

2NO + O2 → 2NO2
NO2 + O3 → NO2 + O2 + O
O2 (air) + O → O3 (toxic)

O3 + unburnt HC → HCHO

O3 + PAN → eye irritant
O3 + NO → nose, throat

Corrosive action on rubber, paint, buildings...

Some plants can metabolise nitrogen oxide.

Part1: View the Topic in this Video from 0:08 to 15:21

Part2: View the Topic in this Video from 0:08 to 10:48

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