title: [Al species distribution survey in portable water distribution system in a north city of China].
abstract: The residual Al concentration and species distribution of a north Chinese city was surveyed using fluorimetry. Results showed that the highest total Al concentration was 0.078 mg x L(-1) and the mean concentration was 0.038 mg x L(-1), lower than the latest portable water standard of 0.2 mg x L(-1). Inorganic mono-aluminum and inorganic poly-aluminum, the main toxicity-leading species, were also the major existence species with the mean concentration 0.011 mg x L(-1) and 0.013 mg x L(-1) respectively. While organic combined aluminum concentration was quite low. Correlation analysis results showed that the Al concentration and species distribution in a certain pipe line was connected with the water quality. When the distribution system contained more salts and less soluble organic matter, the Al concentration would be controlled in a low level, which was important to guide the local operation.
authors.affiliation: Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China. wwd04@mails.tsinghua.edu.cn
authors.forename: Wen-Dong
authors.initials: WD
authors.lastname: Wang
authors.forename: Hong-Wei
authors.initials: HW
authors.lastname: Yang
authors.forename: Wan-Peng
authors.initials: WP
authors.lastname: Zhu
authors.forename: Zhan-Peng
authors.initials: ZP
authors.lastname: Jiang
mesh_terms: D000535:Aluminum / Q000032:analysis*; D017607:Aluminum Compounds / Q000032:analysis*; D002681:China; D002947:Cities; D004784:Environmental Monitoring / Q000379:methods*; D005470:Fluorometry; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014881:Water Supply / Q000032:analysis*
chemical_list: D017607:Aluminum Compounds; D014874:Water Pollutants, Chemical; D000535:Aluminum