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Int. J. Environ. Res. Public Health 2011, 8(6), 2352-2365; doi:10.3390/ijerph8062352
Article

Investigation of Spatial and Temporal Trends in Water Quality in Daya Bay, South China Sea

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Received: 20 March 2011; in revised form: 12 May 2011 / Accepted: 30 May 2011 / Published: 22 June 2011
(This article belongs to the Special Issue Geostatistics in Environmental Pollution and Risk Assessment)
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Abstract: The objective is to identify the spatial and temporal variability of the hydrochemical quality of the water column in a subtropical coastal system, Daya Bay, China. Water samples were collected in four seasons at 12 monitoring sites. The Southeast Asian monsoons, northeasterly from October to the next April and southwesterly from May to September have also an important influence on water quality in Daya Bay. In the spatial pattern, two groups have been identified, with the help of multidimensional scaling analysis and cluster analysis. Cluster I consisted of the sites S3, S8, S10 and S11 in the west and north coastal parts of Daya Bay. Cluster I is mainly related to anthropogenic activities such as fish-farming. Cluster II consisted of the rest of the stations in the center, east and south parts of Daya Bay. Cluster II is mainly related to seawater exchange from South China Sea.
Keywords: Daya Bay; principal component analysis; multidimensional scaling analysis; statistical techniques; water quality Daya Bay; principal component analysis; multidimensional scaling analysis; statistical techniques; water quality
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Wu, M.-L.; Wang, Y.-S.; Dong, J.-D.; Sun, C.-C.; Wang, Y.-T.; Sun, F.-L.; Cheng, H. Investigation of Spatial and Temporal Trends in Water Quality in Daya Bay, South China Sea. Int. J. Environ. Res. Public Health 2011, 8, 2352-2365.

AMA Style

Wu M-L, Wang Y-S, Dong J-D, Sun C-C, Wang Y-T, Sun F-L, Cheng H. Investigation of Spatial and Temporal Trends in Water Quality in Daya Bay, South China Sea. International Journal of Environmental Research and Public Health. 2011; 8(6):2352-2365.

Chicago/Turabian Style

Wu, Mei-Lin; Wang, You-Shao; Dong, Jun-De; Sun, Cui-Ci; Wang, Yu-Tu; Sun, Fu-Lin; Cheng, Hao. 2011. "Investigation of Spatial and Temporal Trends in Water Quality in Daya Bay, South China Sea." Int. J. Environ. Res. Public Health 8, no. 6: 2352-2365.



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