Post #829 — Civil engineering competitive exam (@Civil_engg_competitive

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Civil engineering competitive exam

28 Sep 2019, 20:46

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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

@Civil_engg_competitive_exam

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