Exposure to dirty air linked to increased risk of common brain tumor

A recent large-scale Danish study has revealed that ultrafine particles in air pollution can cross the blood-brain barrier and may increase the risk of developing tumors of the central nervous system (CNS), particularly meningiomas --the most common type of primary brain tumor.

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and cardiovascular health, potentially affecting the brain as well.

Given the high pollution burden in Indian metropolitan areas such as in Delhi, Mumbai, and Kolkata, the study's implications are particularly relevant for Indian urban populations. Cities frequently exceed World Health Organization (WHO) guidelines for PM2.5 and NO2, with vehicular emissions, construction activities, and industrial sources contributing significantly to overall pollution levels.