Hosted by MCTL and the OUC international office, the The 4th Haichuan Forum Chemical Pollutant Environmental Biogeochemistry was held on July 7 at OUC Laoshan Campus.

The theme of this forum is trace metal mercury and other chemical pollutant environmental biogeochemistry cycles. The forum invited Prof. Xinbin Feng from Institute of Geochemistry, CAS, Prof. Xiangdong Li from Hong Kong Polytechnic University, Prof. Zheren Lin from Lamar University, Prof. Yong Cai from Florida International University. The invited speakers gave lectures about forest ecosystem mercury biogeochemistry cycles, mercury environmental behavior in Three Gorges reservoir area, and mercury's discharge and transmission in China. More than 50 MCTL staff and students joined in the forum.