Exposure to ambient fine particulate matter (PM) is a leading contributor to diseases in India. Previous studies analysing emission source attributions were restricted by coarse model resolution and limited PM observations. We use a regional model informed by new observations to make the first high-resolution study of the sector-specific disease burden from ambient PM exposure in India. Observed annual mean PM concentrations exceed 100 μg m and are well simulated by the model. We calculate that the emissions from residential energy use dominate (52%) population-weighted annual mean PM concentrations, and are attributed to 511,000 (95UI: 340,000-697,000) premature mortalities annually. However, removing residential energy use emissions would avert only 256,000 (95UI: 162,000-340,000), due to the non-linear exposure-response relationship causing health effects to saturate at high PM concentrations. Consequently, large reductions in emissions will be required to reduce the health burden from ambient PM exposure in India.
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| http://dx.doi.org/10.1038/s41467-018-02986-7 | DOI Listing |
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