Context Since industrialization, there has been an increasing concern about environmental pollution. As mentioned in the WHO report [7 million premature deaths annually linked to air pollution](http://www.who.int/mediacentre/news/releases/2014/air-pollution/en/) , air pollution is the world's largest single environmental risk. Moreover as reported in the NY Times article, [India’s Air Pollution Rivals China’s as World’s Deadliest](https://www.nytimes.com/2017/02/14/world/asia/indias-air-pollution-rivals-china-as-worlds-deadliest.html?_r=0) it has been found that India's air pollution is deadlier than even China's. Using this dataset, one can explore India's air pollution levels at a more granular scale. Content This data is combined(across the years and states) and largely clean version of the [Historical Daily Ambient Air Quality Data](https://data.gov.in/catalog/historical-daily-ambient-air-quality-data) released by the Ministry of Environment and Forests and Central Pollution Control Board of India under the National Data Sharing and Accessibility Policy (NDSAP). [Visualization of the Mean RSPM values over the years](https://shrutibhargava94.github.io/india_air_quality_map/) Inspiration Can we detect local trends? Can we relate the air quality changes to changes in Environmental policy in India? Acknowledgements [Vishal Subbiah](https://www.kaggle.com/vishalsubbiah) (Data downloading)