Long-term trends of sulfur deposition in East Asia during 1981-2005

► Our modeled data was consistent with observed data. ► Wet deposition rates increased significantly in Japan during 1991-2005. ► Sulfur deposition in East Asia increased from 14.2 to 24.0 mmol S m−2 y−1. ► China's contribution increased from 65% to 77% during the 25 years. ► The contribution of Miyakejima volcano was 3% during 2001-2005.