Fig. 8: Impact of anthropogenic chlorine emissions on the chemical components of PM2.5.
From: Linking anthropogenic chlorine emissions to regional air quality in India

Annual changes in the chemical components of PM2.5 arising from the influence of anthropogenic chlorine emissions. The panels present the differences (Δ) between Wi-AnthroHCl and Wo-AnthroHCl simulations for particulate chloride (pCl−), sulfate (\({{SO}_{4}}^{2-}\)), ammonium (NH4+), and nitrate (\({NO}_{3}^{-}\)).