GeoBBC Sampling in Dry Season mainly includes four stages, and the first two stages have been completed. In the first stage (from 14 Nov. to 26 Nov.), Xiaofei, Bolong and Zhicheng collected the surface water and sediment samples from the main stream of the Dongjiang River (12 sampling sites) and Qiuxiangjiang River (2 sampling sites). In the second stage (from 12 Dec. 2022 to 8 Jan. 2023), the same sampling team collected surface water and sediment samples from Xinfeng River (3 sampling sites), Daxi River (5 sampling sites), Lianping River (6 sampling sites) and Zhongxin River (8 sampling sites). In total, 36 water samples and 25 sediment samples were collected. Among which, basic water quality parameters such as pH, conductivity and ammonia-nitrogen concentrations have been determined. In addition, 28 water samples have been filtered and enriched to obtain particulate matter (PM) and dissolved organic matter (DOM), respectively. Pro. Zhang, Pro. Li and associated Pro. Zhao also participated in this campaign with strategic significance.

In the second stage, Tang Jiao and the GeoBBC sampling team set up 30 passive samplers in the Dongjiang River Basin, mainly distributed in Xinfeng County (4 sampling sites), Lianping County (5 sampling sites) and Dongyuan County (1 sampling site). Three samplers were installed at each sampling site to obtain parallel samples.

Sampling sites of surface water and surface sediments

Sampling sites of passive air samplers

Sampling Photos 

Group Photos

Singer Zhang Bolong