Cities in South India are some of the cleanest in the country when it comes to breathable air, but they still suffer from some influence of winter inversion and, resultantly, elevated pollution levels. The levels increase despite the geographical advantages and favourable meteorology due to the region’s proximity to the sea and improved ventilation – finds a new 2019-2021 analysis of winter air quality in India’s south, done by the Centre for Science and Environment. To get full access to this story, "Subscribe Now", in just Re.1 for the next 24 hours.