Question
What are the gaseous pollutants and chemicals and their impact on health?
Answer :
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Gaseous pollutants and chemical contaminants in the environment are major determinants of human health, affecting respiratory, cardiovascular, neurological, and systemic functions. Common gaseous pollutants include carbon monoxide (CO), sulfur dioxide (SO₂), nitrogen oxides (NOₓ), ozone (O₃), and volatile organic compounds (VOCs). Carbon monoxide, produced from incomplete combustion of fuels, binds with hemoglobin more readily than oxygen, reducing oxygen delivery to tissues and causing headaches, dizziness, unconsciousness, and even death at high exposure levels. Sulfur dioxide, mainly emitted from burning fossil fuels, irritates the respiratory tract, aggravates asthma, and contributes to chronic bronchitis. Nitrogen oxides from vehicle emissions and industrial processes cause lung inflammation,
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