Sources of water pollution and evolution of water quality in the Wuwei basin of Shiyang river, Northwest China

Ma, Jinzhu; Ding, Zhenyu; Guo-xiao, Wei; Hua, Zhao; Huang, Tianming

doi:10.1016/j.jenvman.2008.05.007

Cited by 155 publications

(86 citation statements)

References 19 publications

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“…In contrast, concentrations of the different nitrogen forms were low in the upstream region due to few anthropogenic inputs. Results from this study are comparable to those for the Shiyang River, which, downstream of Wuwei City, was reported to be seriously polluted by nitrogen [33]. Perona et al [34] reported that high surface water nitrogen concentrations were consistent with high population densities, mainly due to the increasing discharges of domestic sewage.…”

Section: Characteristics Of Nitrogen Pollutionsupporting

confidence: 82%

Nitrogen pollution and source identification of urban ecosystem surface water in Beijing

Ren

Zhang

et al. 2013

Front. Environ. Sci. Eng.

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Nitrogen contamination of surface water is a worldwide environmental problem with intensive agriculture and high population densities. We assessed the spatial and seasonal variation in concentrations of total nitrogen and different nitrogen species present in surface-water in Beijing, China. Also, chemical (NO , and total nitrogen from 2.4 to 17.0 mg$L -1 . Inorganic nitrogen accounted for between 60 and 100% of total nitrogen at the ten monitoring sites. Nitrate nitrogen, ammonium nitrogen, and total nitrogen concentrations at the 2 downstream monitoring sites in south-eastern Beijing were significantly higher than those at the other eight upstream monitoring sites (P < 0.01). Examination of seasonal variation showed that there was a significant inverse relationship between nitrate nitrogen concentrations and precipitation, and that nitrate nitrogen concentrations peaked in the dry seasons. The information given by the δ 15 N nitrate values and nitrate nitrogen concentrations, combined with the NO - -N=C1ratio distribution, showed that domestic sewage was the major source of nitrate in Beijing. Methods to control and reduce sewage pollution are urgently needed to help manage surface water quality in Beijing.

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Section: Characteristics Of Nitrogen Pollutionsupporting

confidence: 82%

Nitrogen pollution and source identification of urban ecosystem surface water in Beijing

Ren

Zhang

et al. 2013

Front. Environ. Sci. Eng.

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“…Groppo et al [10] found that population growth and increases in untreated sewage were the main causes of water quality deterioration in rivers in the State of Sao Paulo, Brazil. Ma et al [11] found that sharp increases in industrial pollution and domestic discharge were the major causes of water quality deterioration in the Shiyang River, Northwest China. Suitable water management measures, however, may also be included in the urbanization process to mediate water quality deterioration [12] such as installing wastewater infrastructure (e.g., wastewater treatment plant (WWTP) and urban drainage system) to increase wastewater treatment capacity.…”

Section: Introductionmentioning

confidence: 99%

Water Quality Changes during Rapid Urbanization in the Shenzhen River Catchment: An Integrated View of Socio-Economic and Infrastructure Development

Qin

Khu

et al. 2014

Sustainability

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Surface water quality deterioration is a serious problem in many rapidly urbanizing catchments in developing countries. There is currently a lack of studies that quantify water quality variation (deterioration or otherwise) due to both socio-economic and infrastructure development in a catchment. This paper investigates the causes of water quality changes over the rapid urbanization period of 1985-2009 in the Shenzhen River catchment, China and examines the changes in relation to infrastructure development and socio-economic policies. The results indicate that the water quality deteriorated rapidly during the earlier urbanization stages before gradually improving over recent years, and that rapid increases in domestic discharge were the major causes of water quality deterioration. Although construction of additional wastewater infrastructure can significantly improve water quality, it was unable to dispose all of the wastewater in the catchment. However, it was found that socio-economic measures can significantly improve water quality by decreasing pollutant load per gross regional production (GRP) or increasing labor productivity. Our findings suggest that sustainable development during urbanization is possible, provided that: (1) the wastewater infrastructure should be constructed timely and revitalized regularly in line with urbanization, and wastewater treatment facilities should be OPEN ACCESS Sustainability 2014, 6 7434 upgraded to improve their nitrogen and phosphorus removal efficiencies; (2) administrative regulation policies, economic incentives and financial policies should be implemented to encourage industries to prevent or reduce the pollution at the source; (3) the environmental awareness and education level of local population should be increased; (4) planners from various sectors should consult each other and adapt an integrated planning approach for socio-economic and wastewater infrastructure development.

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“…Anthropogenic contamination of waterways constitutes a major problem in both developing and developed countries around the world (Barrett et al 1998;Gelberg et al 1999;Tilman et al 2002;Grande et al 2003;Fytianos and Christophoridis 2004;Camargo and Alonso 2006;Chen et al 2006;Nas and Berktay 2006;Chang 2008;Ma et al 2009). Declining surface water quality directly affects human and ecosystem health, which further impacts economic development and social wellbeing.…”

Section: Introductionmentioning

confidence: 99%

Spatial and temporal variations of nitrogen pollution in Wen-Rui Tang River watershed, Zhejiang, China

Mei

Zhang

et al. 2010

Environ Monit Assess

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Water quality has degraded dramatically in Wen-Rui Tang River watershed, Zhejiang, China, especially due to rapid economic development since 1995. This paper aims to assess spatial and temporal variations of the main pollutants (NH + 4 -N, TN, BOD 5 , COD Mn , DO) of water quality in Wen-Rui Tang River watershed, using the geographic information system, cluster analysis (CA) and principal component analysis (PCA). Results showed that concentrations of BOD 5 , COD Mn , NH + 4 -N, and TN were significantly higher in tertiary rivers than in primary and secondary rivers. From April 2006 to March 2007, the concentrations of NH + 4 -N (2.25-57.9 mg/L) and TN (3.78-70.4 mg/L) in all samples exceeded Type V national water quality standards (≥2 mg/L), while 5.3% of all COD Mn (1.83-27.5 mg/L) and 4 -N and TN in tertiary rivers had a significant negative correlation with 5-day cumulative rainfall and monthly rainfall, while there were no significant correlations in primary and secondary rivers. The results of CA and spatial analysis showed that the northern part of WenRui Tang River watershed was the most seriously polluted. This region is characterized by the high population density and industrial and commercial activities. The PCA and spatial analysis indicated that the degraded water quality is caused by anthropogenic activities and poor wastewater management.

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Sources of water pollution and evolution of water quality in the Wuwei basin of Shiyang river, Northwest China

Cited by 155 publications

References 19 publications

Nitrogen pollution and source identification of urban ecosystem surface water in Beijing

Nitrogen pollution and source identification of urban ecosystem surface water in Beijing

Water Quality Changes during Rapid Urbanization in the Shenzhen River Catchment: An Integrated View of Socio-Economic and Infrastructure Development

Spatial and temporal variations of nitrogen pollution in Wen-Rui Tang River watershed, Zhejiang, China

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