“…The watershed has suffered severe environmental deterioration due to rapid economic development coupled with lagging infrastructure to protect the environment. Research to date in the Wen-Rui Tang River watershed has primarily focused on the effects of nitrogen and phosphorus (Mei et al, 2014;Chen et al, 2016), polycyclic aromatic hydrocarbons and organic carbon (Li et al, 2016) in the hypoxic/ anoxic waterways. In addition, Gu et al (2012) and Song et al (2012) examined the ecological risk of sediments in the Wen-Rui Tang River network.…”