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Ambient air quality is primarily affected by respirable particulate matter (PM), SO2 and NO2 concentrations in the atmosphere. Monthly remote sensing data of SCIAMACHY tropospheric SO2 vertical column densities was measured from January 2004 to December 2010. OMI tropospheric SO2 vertical column densities was measured from October 2004 to December 2010. And daily ambient air pollution index (API)...
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