Study on water pollution change rule and source in Taihu Lake Basin

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Wei, Song^1

Tianjin Research Institute for Water Transport Engineering, M.O.T., Tianjin

300456, China^1

关键词: Automatic monitoring stations;    Linear correlation;    Mean concentrations;    Meteorological data;    Pollution sources;    Taihu Lake basin;    Water environments;    Water quality indexes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/4/042048/pdf
DOI  :  10.1088/1757-899X/392/4/042048

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The main pollutants of water environment in Taihu (COD, NH3-N and DO) are studied in this paper. The statistical analysis characteristics of the weekly mean concentration of pollutants in seven automatic monitoring stations in Taihu Lake Basin were studied by statistical methods, and the correlation between the meteorological data of seven stations and pollutants was analyzed. The results show that, the normal distribution is the water quality index of each site, and the fit type selection is most consistent with the significant relationship. DO weekly mean concentrations were better correlated at several sites except for individual sites, CODMn weeks mean concentration, the correlation between the sites is very small, the correlation between NH3-N weeks mean concentration at all sites showed no correlation or low linear correlation, These results shows that the DO pollution sources of these stations have some relevance, but the pollution sources of CODMn and NH3-N are not related closely, and only a few sites are related.