Source: This post on Vehicular Emissions as a Primary Pollutant in Delhi is based on the article “Vehicular emissions top contributor to air pollution: study” published in The Hindu on November 7, 2024.
Why in news?
A recent study identified vehicular emissions as the primary contributor to air pollution in Delhi, surpassing other sources like stubble burning in neighboring states. The analysis covers the period from October 12 to November 3.
About Air Quality Statistics
1. Poor Air Quality: Delhi recorded “very poor” air quality on Wednesday, reflecting the severity of pollution in the city.
2. Pollution Source Breakdown:
| Sources | Contribution |
| Neighbouring Districts | 34.97% to Delhi’s air pollution. |
| Delhi’s Local Sources | Accounted for 30.34% of the pollution. |
| Farm Fires | only 8.19% of the pollution during the analyzed period. |
| Other Sources | The remaining pollution originates from areas beyond the National Capital Region. |
3. Primary Local Pollutants
| Sources | Contribution |
| Vehicular Emissions | Constituted the largest share of local pollution at 51.5%. |
| Dust Particles | Accounted for 3.7% of pollution from local sources. |
UPSC Syllabus: Environment
