Air pollution
♦️ Major air pollutants
🔸 Particulats
👉 particulates in atmosphere are measured by High volume air sampler
🔸 Carbon monoxide
👉 CO is analysed by NDIR (Non Dispersive Infrared) analyser.
🔸 Oxides of sulphur
👉 SOx are measured by West & Gaek method
🔸 Oxides of Nitrogen
👉 NOx are estimated by Jacob - Oscheisser method
🔸 Hydrocarbons
👉 Hydrocarbons estimated by Gas Chromatography
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