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Ozone (nitrogenoxide O2 O3). B. Based on the Chemical Composition: (i) Organic pollutants, e.g., Hydrocarbons (ii) Inorganic pollutants, e.g., CO, SO2, SO3, H2S. C. Based on the State of Matter: (I) Particulate Pollutants: Particulate pollutants are finely.
At concentrations greater than 3 ppm, the SO2 gas has a pungent irritating odour. It is partly converted to sulphur trioxide or sulphuric acid and its salts by photochemical or catalytic processes in the atmosphere. In a.
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