Observations from the Ozone Monitoring Instrument (OMI), onboard the NASA’s Earth Observing System (EOS) Aura satellite, reveal a large Sulfur dioxide (SO2) pollution “hotspot” over Morbi, Gujarat, India, attributed to the ceramic industries in the area. OMI estimated an upward pollution trend of ~300% between 2009 and 2016.
Technical description of figure:
Mean OMI-derived SO2 vertical column densities (VCDs) in Dobson Units [1 DU = 2.69*1016 SO2 molecules cm-2] without the large-scale bias over Morbi, Gujarat, India, for the four time periods as indicated on the plot. The main industrial sources are shown by the black dots.
Scientific significance, societal relevance, and relationships to future missions:
These new satellite-derived estimates can be used to help make more informed decisions on impacts of SO2 emissions from the ceramic industries, as well as from oil refineries and power plants, on environment and human health.
Can Li, Nickolay A. Krotkov, Peter Leonard, and Joanna Joiner (2019), OMI/Aura Sulphur Dioxide (SO2) Total Column 1-orbit L2 Swath 13x24 km V003, Greenbelt, MD, USA, Goddard Earth Sciences Data and Information Services Center (GES DISC) (2019), Accessed: [Data Access Date], DOI: https://doi.org/10.5067/Aura/OMI/DATA2022
References: Kharol, S.K., V. Fioletov, C.A. McLinden, M.W. Shephard, C.E. Sioris, C. Li, N.A. Krotkov (2020). Ceramic industry at Morbi as a large source of SO2 emissions in India, Atmospheric Environment, 223, https://doi.org/10.1016/j.atmosenv.2019.117243.