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2015•Marine Environmental ScienceRequires access

The discharge state of major pollutants around Yueqing Bay

Zhuo Min

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Abstract

Eutrophication,characterized by nitrogen( N) and phosphorus( P) material,has become the major factors influencing both Zhejiang nearshore and Yangze River Delta Area. Yueqing Bay of southeast Zhejiang is taken as an example to analyze its major pollutants. Survey and quantitatively analysis of the pollution sources in the catchment of this bay was conducted. The results show that CODcr mainly came from mariculture,land- based pollution is secondary in 2012. Nitrogen( N) and phosphorus( P) mainly caused by land-based pollution,accounting for83% and 80% for the total nitrogen( TN) and total phosphorus( TP) respectively. Taking the investigation results in2005 into account,by analyzing the impact on Yueqing Bay from human activities and its trends in the future,the conclusion and improvement suggestions are summarized.

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What this paper is about

Eutrophication,characterized by nitrogen( N) and phosphorus( P) material,has become the major factors influencing both Zhejiang nearshore and Yangze River Delta Area. Yueqing Bay of southeast Zhejiang is taken as an example to analyze its major pollutants. Survey and quantitatively analysis of the pollution sources in the catchment of this bay was conducted. The results show that CODcr mainly came from mariculture,land- based pollution is secondary in 2012. Nitrogen( N) and phosphorus( P) mainly caused by land-based pollution,accounting for83% and 80% for the total nitrogen( TN) and total phosphorus( TP) respectively. Taking the investigation results in2005 into account,by analyzing the impact on Yueqing Bay from human activities and its trends in the future,the conclusion and improvement suggestions are summarized.

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Available abstract

Eutrophication,characterized by nitrogen( N) and phosphorus( P) material,has become the major factors influencing both Zhejiang nearshore and Yangze River Delta Area. Yueqing Bay of southeast Zhejiang is taken as an example to analyze its major pollutants. Survey and quantitatively analysis of the pollution sources in the catchment of this bay was conducted. The results show that CODcr mainly came from mariculture,land- based pollution is secondary in 2012. Nitrogen( N) and phosphorus( P) mainly caused by land-based pollution,accounting for83% and 80% for the total nitrogen( TN) and total phosphorus( TP) respectively. Taking the investigation results in2005 into account,by analyzing the impact on Yueqing Bay from human activities and its trends in the future,the conclusion and improvement suggestions are summarized.

Key concepts: Bay, Eutrophication, Mariculture, Environmental science, Pollutant, Pollution, Phosphorus, Water pollution

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