caa a22 4500 467904766 CHVBK 20180406152830.0 cr unu---uuuuu 170328e20060401xx s 000 0 eng 10.1007/s10661-006-6557-1 doi (NATIONALLICENCE)springer-10.1007/s10661-006-6557-1 Assessing the Impact of Leather Industry to Water Quality in the Aojing Watershed in Zhejiang Province, China [Elektronische Daten] [Mingqin Zhang, Minghua Zhang] The development of the leather industry in the Aojiang watershed of Zhejiang province increased the release of waste water. In the waste water, ammonium nitrogen (NH+ 4-N) and germanium (Ge) are the main pollutants. In recent years, literature has documented that the intake of high concentrations of NH+ 4-N and Ge harms human health and biological species. This paper focuses on assessing the trends of NH+ 4-N and Ge concentrations in the released waste water in Aojiang watershed and on understanding their relationships with the released waste water using regression and correlation statistics. The paper also utilizes the integrated pollution index to evaluate the water quality in the watershed. Preliminary results show that, from 1992 to 1998, the concentrations of NH+ 4-N and total Ge increased 13 and 14 times, respectively, and they decreased somewhat after 1998. The concentrations of NH+ 4-N and total Ge are positively correlated to the amount of released waste water. These concentrations of NH+ 4-N and Ge, respectively, exceed 12 and 3 times, of the water standards. The water quality in the watershed degraded from Type III in 1992 to over Type V in 2003 when they were compared with the national water quality standards. It appeared that the pollution had positive correlation with leather industry production. The degraded water has no doubt affected human health and the ecosystem health. These results can provide scientific information for the local government to reasonably adjust the industry structure and reduce the pollution to protect the environment. Springer Science + Business Media, Inc., 2006 watershed water quality nationallicence NH+4-N nationallicence Ge nationallicence leather industry waste water nationallicence impact assessment nationallicence ecological risks nationallicence Zhang Mingqin Wenzhou Environmental Monitoring Center, Wenzhou, Zhejiang, China aut Zhang Minghua Department of Land, Air and Water Resources, University of California, Davis, California, USA aut Environmental Monitoring and Assessment Kluwer Academic Publishers 115/1-3(2006-04-01), 321-333 0167-6369 115:1-3<321 2006 115 10661 https://doi.org/10.1007/s10661-006-6557-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10661-006-6557-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Mingqin Wenzhou Environmental Monitoring Center, Wenzhou, Zhejiang, China aut NATIONALLICENCE 700 1- Zhang Minghua Department of Land, Air and Water Resources, University of California, Davis, California, USA aut NATIONALLICENCE 773 0- Environmental Monitoring and Assessment Kluwer Academic Publishers 115/1-3(2006-04-01), 321-333 0167-6369 115:1-3<321 2006 115 10661 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer