Before the end of sampling in the dry season, Professor Zhang Gan invited Professor Zou Shichun, Dean of the School of Oceanology, Sun Yat-sen University, to visit Director Tian Zhaowei of Heyuan Hydrology Station. Along with them was the GeoBBC Sampling Squad (Professor Li Jun, Associate Professor Zhao Shizhen, Xiaofei, Bolong and Zhicheng). We had an in-depth discussion on sampling arrangements. Professor Zou and Director Tian gave professional suggestions, which greatly improved our sampling plan. Based on this discussion, we identified Shuntian Hydrological Station (顺天水文站), Heyuan Hydrological Station (河源水文站) and Boluo Hydrological Station (博罗水文站) as long-term sampling sites, and conducted field investigations on these preset sampling sites. What is exciting is that we successfully collected three sedimentary columns (~80 cm) in Fengshuba Reservoir (枫树坝水库). It was a really rewarding trip. Cheers!
Discussion in Heyuan Hydrology Station (February 24, 2023). 张干（左三）、邹世春（左二）、李军（左一）、赵时真（左四）、田兆伟（右三）、耿晓飞（右二）、胡峙成（右一）、张伯龙（拍摄）
Group photos at Shuntian Hydrological Station (February 25, 2023). 张干（右一）、邹世春（右三-下）、李军（左二）、赵时真（右二）、胡峙成（左一）、张伯龙（左三）、耿晓飞（右三-上）
Group photos at Boluo Hydrological Station (February 26, 2023)
Group photos in Simeizhou (hydroelectric power station, February 26, 2023)
The joy of successful collection of sedimentary columns (February 25, 2023)
The sampling sites of passive air samplers, water samples (50-100L) and surface sediment samples in the first three sampling stages
Group photo of the sampling team on Xinfengjiang Reservoir (Photo by Geng Xiaofei)
Group photo of the sampling team on the lighthouse (Photo by Geng Xiaofei)
Surface sediment of Xinfengjiang Reservoir
Passive air samplers and an atmospheric deposition sampler
End of sampling on the first day (Photo by Professor Li Jun)
Water sample pretreatment
Sampling sites of surface water and surface sediments
Sampling Photos 
Group Photos
Singer Zhang Bolong