Air Pollution in Indian Cities — Prelims Strategy

Prelims Strategy

For Prelims, focus on factual accuracy and conceptual clarity. Memorize the eight pollutants included in India's AQI, their primary sources, and their health effects. Understand the AQI categories and their corresponding health implications.

Key government initiatives like NCAP (targets, base year, scope), GRAP (trigger, measures, implementing body), and BS-VI norms (implementation year, key features, impact on fuel/emissions) are frequently tested.

Pay attention to the constitutional articles (21, 48A, 51A(g)) and major environmental acts (Air Act 1981, EPA 1986) and their key provisions. Be aware of landmark Supreme Court and NGT judgments and their outcomes.

Questions often involve identifying primary vs. secondary pollutants, understanding atmospheric phenomena (inversion, mixing height), and matching cities with their dominant pollution sources. Practice MCQs that test your ability to differentiate between similar-sounding policies and to identify correct statements about specific facts.

Keep an eye on current affairs for new reports, policy changes, and international guidelines (e.g., WHO updates) related to air quality.

Also build Paper II skills

Climate data, pollution metrics, and treaty timelines are natural practice for CSAT data interpretation and careful reading. CSAT hub.

• Data interpretation
• Correlation vs causation
• Estimation techniques