Time Change Rule and Source Identification of Nitrogen and Phosphorus Pollution on Huihe River in Suzhou City

Jin Mu Fu; Wei Gong; Xiao Yin Chen; Gang Fang

doi:10.4028/www.scientific.net/AMR.712-715.520

Paper Titles

The Preparation of Micro-Molecular Dextran in Sub-Critical Water/CO₂
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Supercritical Carbon Dioxide Extraction of the Fatty Acids from Pacific white Shrimp Waste (Litopenaeus vannamei)
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Preparation of ε-Polylysine Modified Silica Nanoparticles
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Screening of Biosurfactant-Producing Bacteria
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Time Change Rule and Source Identification of Nitrogen and Phosphorus Pollution on Huihe River in Suzhou City
p.520

Adsorption of Cr Ion by Activated Carbon Prepared from Corncob Xylitol Residue
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Adsorption of Corncob Hydrolysis Residue on Cr (VI)
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Evaluation of the Measurement Uncertainty of Monosomic Ginsenosides in Ginseng
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First Principle Study on Mn-Doped Ceria with Different Doping Concentration
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 712-715Time Change Rule and Source Identification of...

Time Change Rule and Source Identification of Nitrogen and Phosphorus Pollution on Huihe River in Suzhou City

Abstract:

For understanding the temporal variation of nitrogen and phosphorus concentrations in Huihe River, Suzhou, the observed data (including NH₄⁺-N、 TN、TP, the temple and quantity of the water) from 2007 to 2010 were analyzed by statistical analysis including correlation, cluster and factor analysis. The results imply that the variations of concentrations of NH₄⁺-N, TN and TP in Huihe River were significant, their concentrations are 0.05-4.22mg/L, 0.11-15.14mg/L and 0.01-1.41mg/L, respectively. Correlation and factor analysis suggest that NH₄⁺-N、TN and TP are well correlated with water temperature, whereas there is no significant between them and water quantity. Comparative study and cluster analysis, as well as factor analysis imply that the temporal variations of nitrogen and phosphorus concentrations in Huihe River are significant, and coincide with the seasonal variation of climatic variation of the study area. The results show that either dredging project or climate factors (seasonal changes) had dramatically affected the pollution of NH₄⁺-N, TN and TP. Moreover, the study also confirmed that NH₄⁺-N, TN pollution is mainly anthropogenic, different with TP pollution, who is more likely to be controlled by natural factors.