Rachel V Thomas

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Delhi Air Pollution: PM2.5 Exposure May Raise Type 2 Diabetes Risk By 16%, Study Finds

Long known to be a key risk factor for lungs and heart, a new study now shows that long-term exposure to <span>air pollution</span> and fine particulate matter (PM2.5) may increase the risk of developing <span>type 2 diabetes</span> by 16%. 

A rise of 10 micrograms per cubic metre in PM2.5 concentration was associated with a 10% to 16% increase in diabetes risk. 

The findings come amid rising pollution levels in <span>Delhi</span>, highlighting the potential metabolic health consequences of prolonged exposure to poor air quality.

Published in the Journal of Vascular Diseases, the analysis found that air pollution is not just a cardiopulmonary concern but also a potential contributor to metabolic health problems. 

The researchers analysed 13 major previous reviews, covering more than 200 million participant observations worldwide.

Reviews examining new diabetes cases consistently found an association between air pollution exposure and a higher risk of developing the disease. 

The studies also reported higher diabetes prevalence, elevated blood sugar levels and an increased burden of related health complications. 

The association was observed even among populations living in areas classified as having clean air. Since nearly everyone is exposed to outdoor air pollution, even relatively small increases in individual risk could translate into millions of additional diabetes cases worldwide.

South and East Asia are among the regions likely to face a particularly high burden. 

<h2>Air Pollution Must Be Part Of Diabetes Prevention </h2>

Dr. Anoop Misra, Padma Shri, Executive Chairman and Director, Diabetes and Endocrinology, Fortis C-Doc Hospital for Diabetes and Allied Sciences, said air pollution should be recognised as a potential contributor to metabolic disorders, including diabetes, rather than viewed only as a respiratory and environmental concern. 

“Air quality management must become a core part of diabetes prevention,” he said. 

He also highlighted the growing public health burden in heavily polluted South Asian cities and stressed the need to integrate air quality management into diabetes prevention. 

Yashendra Sethi, first author of the study, said India must focus on improving environmental conditions to protect metabolic health.

“If India wants to tackle both diabetes and pollution, we must improve metabolic health and clean up our environment. We cannot fight diabetes while ignoring the air we breathe,” Sethi said. 

The researchers emphasised that diabetes prevention should be considered alongside heart and lung health when framing clean-air guidelines. 

They recommended strengthening continuous air quality monitoring, tightening emissions standards and incorporating environmental factors into national healthcare policies.

<h2>Delhi Air Quality In Very Poor Category </h2>

Delhi's air quality slipped into the 'very poor' category on November 11, with the 24-hour average Air Quality Index (<span>AQI</span>) settling at 313. This came a day after stronger winds brought some relief, pushing the AQI into the 'poor' category.

According to the Air Quality Early Warning System (EWS) for Delhi, PM2.5 and PM10 concentrations are also expected to rise over the next two days. 

Of the 58 monitoring stations that recorded data on Wednesday, one reported 'severe' air quality, 34 were in the 'very poor' category, 22 in the 'poor' category and one in the 'moderate' category. 

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Long known to be a key risk factor for lungs and heart, a new study now shows that long-term exposure to air pollution and fine particulate matter (PM2.5) may increase the risk of developing type 2 diabetes by 16%. A rise of 10 micrograms per cubic metre in PM2.5 concentration was associated with a 10% to 16% increase in diabetes risk. The findings come amid rising pollution levels in Delhi, highlighting the potential metabolic health consequences of prolonged exposure to poor air quality. Published in the Journal of Vascular Diseases, the analysis found that air pollution is not just a cardiopulmonary concern but also a potential contributor to metabolic health problems. What Did The Study Find? The researchers analysed 13 major previous reviews, covering more than 200 million participant observations worldwide. Reviews examining new diabetes cases consistently found an association between air pollution exposure and a higher risk of developing the disease. The studies also reported higher diabetes prevalence, elevated blood sugar levels and an increased burden of related health complications. The association was observed even among populations living in areas classified as having clean air. Since nearly everyone is exposed to outdoor air pollution, even relatively small increases in individual risk could translate into millions of additional diabetes cases worldwide. South and East Asia are among the regions likely to face a particularly high burden. Air Pollution Must Be Part Of Diabetes Prevention Dr. Anoop Misra, Padma Shri, Executive Chairman and Director, Diabetes and Endocrinology, Fortis C-Doc Hospital for Diabetes and Allied Sciences, said air pollution should be recognised as a potential contributor to metabolic disorders, including diabetes, rather than viewed only as a respiratory and environmental concern. “Air quality management must become a core part of diabetes prevention,” he said. He also highlighted the growing public health burden in heavily polluted South Asian cities and stressed the need to integrate air quality management into diabetes prevention. Yashendra Sethi, first author of the study, said India must focus on improving environmental conditions to protect metabolic health. “If India wants to tackle both diabetes and pollution, we must improve metabolic health and clean up our environment. We cannot fight diabetes while ignoring the air we breathe,” Sethi said. The researchers emphasised that diabetes prevention should be considered alongside heart and lung health when framing clean-air guidelines. They recommended strengthening continuous air quality monitoring, tightening emissions standards and incorporating environmental factors into national healthcare policies. Delhi Air Quality In Very Poor Category Delhi's air quality slipped into the 'very poor' category on November 11, with the 24-hour average Air Quality Index (AQI) settling at 313. This came a day after stronger winds brought some relief, pushing the AQI into the 'poor' category. According to the Air Quality Early Warning System (EWS) for Delhi, PM2.5 and PM10 concentrations are also expected to rise over the next two days. Of the 58 monitoring stations that recorded data on Wednesday, one reported 'severe' air quality, 34 were in the 'very poor' category, 22 in the 'poor' category and one in the 'moderate' category. 

delhi air pollution: pm2.5 exposure may raise type 2 diabetes risk by 16%, study finds

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Delhi Air Pollution: PM2.5 Exposure May Raise Type 2 Diabetes Risk By 16%, Study Finds

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