Delhi Air Pollution — Prelims Strategy

Prelims Strategy

Focus on memorizing specific data: AQI categories (Good 0-50, Satisfactory 51-100, Moderate 101-200, Poor 201-300, Very Poor 301-400, Severe 401-500), GRAP stages with specific measures, source apportionment percentages (vehicular 28%, industrial 18%, construction dust 17%, stubble burning 4%), and institutional roles (CPCB standards, DPCC implementation, CAQM coordination).

Learn key Supreme Court cases with years and specific directions. Practice elimination techniques by understanding common traps: confusing GRAP stages, mixing up institutional jurisdictions, and seasonal variation misconceptions.

Create mnemonics for remembering AQI categories and GRAP measures. Focus on recent developments like CAQM Act 2021, BS-VI implementation, and NCAP targets. Avoid getting lost in technical details; prioritize policy-relevant facts that UPSC typically tests.

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