Samples of sediment, overlying water, pore water, and benthic invertebrate were collected at 13 stations along a typical municipal polluted river in the Pearl river Delta.

研究区域为珠江三角洲一条典型城市污染河道，采集了13个站位沉积物、上覆水、间隙水及底栖动物样品进行分析。

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Another verdict is due later this year in a court in London, in a case that thousands of people from one badly polluted Niger Delta community hope will force Shell to pay compensation.

BBC: Shell Nigeria case: Court acquits firm on most charges