Pollution Reactions

Reactions for Unit 3 AQA Environmental Studies A-Level

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  • Pollution Reactions
    • NOx
      • NO2 --(UVA)-> NO + O
        • O + O2 --> O3
          • NO + O3 + HC --(sunlight)-> PANs
            • NOx
              • NO2 --(UVA)-> NO + O
                • O + O2 --> O3
                  • NO + O3 + HC --(sunlight)-> PANs
                • 2CO(NH2)2 + 4NO + O2 --> 4N2 + 2CO2 + 4 H2O
                  • Urea Spray
        • 2CO(NH2)2 + 4NO + O2 --> 4N2 + 2CO2 + 4 H2O
          • Urea Spray
      • SOx
        • Flue Gas Desulphurisation
          • 2CaCO3 + 2SO2 + O2 --> 2CaSO4 + 2CO2
            • 2CaSO4 is Gysum, used in making plaster
          • Sodium Sulphite Scrubbing
            • Na2SO3 +H2O + SO2 2NaHSO3
        • Sodium Sulphite Scrubbing
          • Na2SO3 +H2O + SO2 2NaHSO3
        • SO2 + H2O H2SO3
          • (Acid Rain)
      • PANs

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