Motorists drive by way of a thick layer of smog, December 17, 2025. Picture credit score: Sushi Kumar Verma
There isn’t a direct correlation between rising Air High quality Index (AQI) ranges and lung ailments and there’s no “definitive information” to determine such a hyperlink, Kirti Vardhan Singh, Minister of State for Surroundings and Local weather Change, informed Rajya Sabha on Thursday (18 December 2025).
Nonetheless, he acknowledged that air air pollution is likely one of the “triggering components” for respiratory and associated diseases.
Mr. Singh answered a query from a Bharatiya Janata Occasion MP.Mr. Lakshmikant Bajpai holds a level in Ayurveda. He requested whether or not the federal government was “conscious” of analysis and medical checks linking “harmful AQI ranges over lengthy durations of time” to lung fibrosis and irreversible discount in lung capability within the Delhi/Nationwide Capital Area. He additionally needed to know whether or not the lung elasticity of residents of Delhi/NCR has been decreased by half in comparison with the lung elasticity of residents of cities with ‘good’ AQI ranges. And whether or not the federal government has a “resolution” to save lots of Delhi residents from pulmonary fibrosis, COPD, emphysema, declining lung perform and regularly declining lung elasticity.
Nonetheless, the minister solely responded with one sentence, saying there was no “direct correlation.” In response to a associated query from MP Randeep Surjewala, Mr. Singh reiterated, as he has in earlier weeks, that there isn’t a “definitive information” that “solely” establishes a direct correlation with deaths from air air pollution, and that the well being results of air air pollution are a “synergistic expression” of dietary habits, occupational habits, socio-economic standing, medical historical past, immunity and genetics.
Nonetheless, the minister detailed the steps taken by the federal government to deal with air air pollution, together with the institution of the Fee for Air High quality Administration (CAQM) in 2020 and the way the fee had issued “95 statutory instructions” to cut back air air pollution within the area. The Supreme Courtroom on Wednesday discovered the CAQM’s actions to be a “complete failure” in controlling air pollution in Delhi-NCR.
There’s a wealth of medical literature linking air air pollution ranges to will increase in bronchial asthma and power obstructive pulmonary illness, together with research in India. Epidemiologists have traditionally relied on “affiliation research” to look at correlations between substances and their well being results. For instance, Dole and Hill’s landmark research was one of many first to determine a hyperlink between smoking and lung most cancers. Whereas these relationships are comparatively simple to determine from medical information, the results of air air pollution are way more delicate and function over longer durations of time, so that they can’t be established immediately. A well-known research performed in India in 2011 (Air Qual Atmos Well being, Siddiqui et al.) in contrast the lung exercise and respiratory illness profile of youngsters in Delhi with kids in rural West Bengal and Uttaranchal (the latter with a lot cleaner air) and confirmed {that a} important proportion of youngsters in Delhi had important respiratory illness.
