Air quality and health; water quality and health
Poor air and water quality directly damage human health. Polluted air causes respiratory and heart disease. Contaminated water spreads infections and poisons the body.
Real World
Delhi regularly records PM2.5 levels 20 times the WHO safe limit during winter smog events, contributing to an estimated 54,000 premature deaths annually — making it one of the world's most deadly air pollution crises.
Exam Focus
For 'assess' questions on health impacts, weigh air versus water quality with comparative data and reach a clear, justified conclusion in your final paragraph.
Essay Framework
Use PEEL to structure every paragraph. Tap each step for guidance and an example.
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