Extended Data Fig. 7: Changes in SO2, NOx and NH3 during 2017–2022 over India. | Nature Sustainability

Extended Data Fig. 7: Changes in SO2, NOx and NH3 during 2017–2022 over India.

From: Recent PM2.5 air quality improvements in India benefited from meteorological variation

Extended Data Fig. 7

(a) Satellite observed total column SO2 from OMI in India for 2017, 2022 and the difference between 2022 and 2017. (b-c) Same as (a) but for total column NO2 from TROPOMI (b) and OMI (c) for 2018, 2022 and the difference between 2022 and 2018. (d) same as (a) but for total column NH3 from IASI for 2017, 2022 and the difference between 2022 and 2017. Circles are surface observations of SO2 (a), NOx (b-c) and NH3 (d) for 2018, 2022 and the difference between 2022 and 2018.

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