Centre Says No Conclusive AQI–Lung Disease Link
The Union government has told Parliament that there is no conclusive scientific data establishing a direct causal link between higher Air Quality Index (AQI) levels and specific lung diseases. The statement was made in response to a question in the Rajya Sabha on the health impact of air pollution, particularly in regions that frequently record poor air quality.
Government’s Clarification in Parliament
In its reply, the Centre said air pollution is widely recognised as harmful to health and can aggravate respiratory symptoms. However, it clarified that existing studies have not conclusively proven that higher AQI levels alone directly cause particular lung diseases. The government noted that respiratory health outcomes are influenced by multiple factors, including duration of exposure, individual susceptibility, lifestyle conditions, and pre-existing illnesses.
Acknowledgement of Health Risks
The government also acknowledged that exposure to polluted air can worsen conditions such as asthma and other breathing-related problems. It said air pollution remains a significant public health concern, especially in urban and industrial regions, and continues to be monitored through national air quality programmes and health surveillance mechanisms.
Ongoing Public Health Debate
The statement has drawn attention amid recurring episodes of poor air quality across northern India during winter months. While the Centre highlighted the absence of conclusive causal data, it reiterated the need for continued research, improved data collection, and preventive measures to reduce pollution levels and protect public health.
The issue remains central to policy discussions as authorities balance scientific evidence, public concern, and environmental regulation.














