How NO2 pollution can be controlled? Explain.

1.	How NO2 pollution can be controlled? Explain.
Answer» (i) The catalytic converters are used in the automobile exhaust which in the first stage converts the oxides of nitrogen to free N₂ or to small amount of NH₃. (ii) The fuel gases coming from power plants or industrial units and containing NO₂ and SO₂ are freed from these gases by scrubbing them with sulphuric acid.

Answer»

(i) The catalytic converters are used in the automobile exhaust which in the first stage converts the oxides of nitrogen to free N₂ or to small amount of NH₃.

(ii) The fuel gases coming from power plants or industrial units and containing NO₂ and SO₂ are freed from these gases by scrubbing them with sulphuric acid.

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How NO2 pollution can be controlled? Explain.

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