Syllabus: GS-III ; Subject: Current affairs ; Topic: Indices and reports, Issue: Most polluted city.
Context: Delhi ranked as the most polluted capital city globally and the third most polluted city in India.
Highlights:
- India ranked third globally in PM 2.5 levels, with over 66% of its cities reporting levels exceeding 35 µg/m3.
- Prolonged exposure to PM 2.5 particles poses health risks such as cardiovascular and neurological diseases.
Prelims Connect(Terminology in news)
| Particulate Matter 2.5
● Refers to fine inhalable particles with a diameter of 2.5 micrometers or less. ● Health Effects: Irritation, coughing, reduced lung function, increased mortality. ● Outdoor Sources: Vehicle exhaust, industrial emissions, burning fuels, forest fires. ● Indoor Sources: Tobacco smoke, cooking, burning candles, heaters/fireplaces. |
