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大明湖水污染物因子分析及富营养化评价 被引量:2
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作者 刘光正 王明森 +1 位作者 刘健 林琳 《济南大学学报(自然科学版)》 CAS 北大核心 2023年第6期696-702,共7页
为了对济南市大明湖水质进行科学、合理的评价,基于2019年枯水期与丰水期的水质数据,使用Pearson相关分析和主成分分析对主要水污染物因子进行数据分析,并采用综合营养状态指数法对水质进行富营养化评价,探究大明湖水质时空变化特征。... 为了对济南市大明湖水质进行科学、合理的评价,基于2019年枯水期与丰水期的水质数据,使用Pearson相关分析和主成分分析对主要水污染物因子进行数据分析,并采用综合营养状态指数法对水质进行富营养化评价,探究大明湖水质时空变化特征。结果表明:大明湖水污染物因子中超标因子为总氮,超出Ⅴ类水标准,且水质空间差异显著,烟波桥进水口为污染来源的主要途径;枯水期水质处于中营养水平,丰水期水质处于轻度富营养化水平,大明湖富营养化因子主要为总氮和叶绿素a,受到外来氮营养盐和水温的控制;结合历史年份的综合营养状态指数可知,近年来大明湖水质呈逐年好转趋势。 展开更多
关键词 质评价 水污染物因子 富营养化 主成分分析 大明湖
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Factor Analysis on Quantity of Discharged Pollutants in Wastewater in Major Cities 被引量:1
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作者 赵双蕊 《Agricultural Science & Technology》 CAS 2016年第4期964-967,共4页
The research performed statistical analysis on 186 data concerning the amount of discharged industrial wastewater, the amount of oxygen demand of industrial wastewater, the amount of ammonia and nitrogen discharged fr... The research performed statistical analysis on 186 data concerning the amount of discharged industrial wastewater, the amount of oxygen demand of industrial wastewater, the amount of ammonia and nitrogen discharged from industries, the amount of urban discharged domestic sewage, the amount of daily life chemical oxygen demand, and the amount of domestic ammonia and nitrogen to explore source of pollutants from wastewater and guarantee urban water quality.Factor analysis was then performed with SPSS according to discharge quantity of pollutants. The results should that the major pollutants are from domestic sewage it is expected scientific suggestions be proposed on water quality in our country. 展开更多
关键词 Quantity of discharged pollutants in wastewater Factor analysis SPSS
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Applied research of correspondence analysis method in waste tailings reservoir heavy metal pollution monitoring points optimization
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作者 WANG Cong-lu WU Chao +1 位作者 LI Zi-jun XUE Sheng-guo 《Journal of Coal Science & Engineering(China)》 2010年第4期419-423,共5页
In order to optimize monitoring points and monitoring factor, the relationshipbetween pollutants and soil sample were established by correspondence analysis.Thestudy results show that the reflecting monitoring points ... In order to optimize monitoring points and monitoring factor, the relationshipbetween pollutants and soil sample were established by correspondence analysis.Thestudy results show that the reflecting monitoring points and monitoring factors in thegraphic on the same factor axis can clearly express the intrinsic link between pollutantsand monitoring points and distribution characteristics.To determine the main monitoringpoint and the main monitoring indicators can reduce and optimize the number of monitoringpoints under the premise of ensuring the typical and representative of monitoring data.Using the correlation of pollutants can reduce the number of monitoring indicators and improvethe effectiveness of data collection. 展开更多
关键词 tailings reservoir heavy metal pollution in-situ monitoring correspondence analysis method OPTIMIZATION
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