A new study reveals that Karnataka accounts for 47% of the pollution contribution among five South Indian states. While Tamil Nadu and Andhra Pradesh act as net exporters of pollution, Karnataka maintains a moderate balance.
- Karnataka is the third-largest contributor to pollution among five South Indian states (47%).
- Tamil Nadu (61%) and Kerala (65%) show the highest levels of pollution contribution.
- Telangana (38%) is the lowest contributor among the analyzed states.
- Domestic, industrial, and open burning are the primary local pollution sources.
A recent comprehensive study titled 'Governance Framework for Airshed-Level Air Quality Management in South India' has shed light on the complex web of air pollution across the southern peninsula. The research quantifies how much each of the five South Indian states contributes to the pollution levels of its neighbors, placing Karnataka as the third-highest contributor.
According to the study, pollution originating from Karnataka accounts for 47% of the total pollution contribution among the five analyzed states. The breakdown shows that Tamil Nadu contributes 61% and Kerala contributes 65%, while Andhra Pradesh stands at 44% and Telangana at 38%. This highlights that air quality in the region is a shared transboundary issue.
Why This Matters
BozokMedia analysis shows that unlike the Indo-Gangetic Plain (IGP) in North India, where pollution patterns are relatively consistent, air pollution in South India is highly dynamic. It varies significantly based on prevailing meteorological conditions and unique regional geographies, making localized management difficult.
To effectively manage air quality in South India, a regional regulatory body similar to the Commission for Air Quality Management in the NCR is essential.
The study introduces the concept of 'Net Contributors' and 'Net Receivers.' Tamil Nadu and Andhra Pradesh are identified as net contributors, meaning they export more pollution to neighboring states than they receive. Conversely, Kerala and Telangana are net receivers. Karnataka occupies a central role, acting as both an exporter and importer of moderate amounts of pollution due to its strategic geographic location.
Pollution Contribution Comparison
| State | Pollution Contribution (%) | Status |
|---|---|---|
| Kerala | 65% | Net Receiver |
| Tamil Nadu | 61% | Net Contributor |
| Karnataka | 47% | Moderate (Mixed) |
| Andhra Pradesh | 44% | Net Contributor |
| Telangana | 38% | Net Receiver |
Data from the Central Pollution Control Board (CPCB) indicates that major urban centers in South India frequently exceed the recommended annual average for particulate matter (PM10). Consequently, the National Clean Air Programme (NCAP) has classified 25 cities in South India as 'non-attainment cities,' failing to meet national ambient air quality standards.
The report identifies three primary local sources of pollution across all states: domestic activities, industrial emissions, and open burning. To combat this, the study recommends implementing an approved fuel framework and setting uniform targets for electric vehicle (EV) adoption and the phasing out of older, high-emission vehicles.
Historical Background
Historically, environmental policy in India has been heavily skewed toward the North, specifically addressing the severe smog issues in the Indo-Gangetic Plain. However, as industrialization accelerates in the South, the shifting patterns of particulate matter (PM2.5 and PM10) have necessitated a new, airshed-based management approach for South Indian states.
Frequently Asked Questions
1. Which South Indian state contributes the most to regional pollution?
According to the study, Kerala shows the highest contribution at 65%, followed closely by Tamil Nadu at 61%.
2. What are the main drivers of pollution in these states?
The three largest local sources are domestic, industrial, and open burning activities.
