Why are oxides of sulphur and nitrogen considered major pollutants resulting from the combustion of coal and petroleum?

Oxides of sulphur (SOx) and nitrogen (NOx) are major pollutants resulting from the combustion of coal and petroleum due to the presence of sulphur and nitrogen impurities in these fuels. During combustion, sulphur dioxide (SO₂) and nitrogen oxides (NO and NO₂) are released into the atmosphere. These pollutants contribute to acid rain, smog formation, and pose respiratory risks. Their environmental impact extends to soil and water pollution, negatively affecting ecosystems. Regulatory measures aim to limit these emissions, emphasizing the need for cleaner energy sources and technologies to mitigate the adverse effects of sulphur and nitrogen oxides on air quality and public health.