title: Using regression models to evaluate the formation of trihalomethanes and haloacetonitriles via chlorination of source water with low SUVA values in the Yangtze River Delta region, China.
abstract: The purpose of this study was to develop the multiple regression models to evaluate the formation of trihalomethanes (THMs) and haloacetonitriles (HANs) during chlorination of source water with low specific ultraviolet absorbance (SUVA) in Yangtze River Delta, China. The results showed that the regression models of THMs exhibited good accuracy and precision, and 86-97 % of the calculated values fell within ±25 % of the measured values. While the HANs models showed relatively weak evaluation ability, as only 75-83 % of the calculated values were within ±25 % of the measured values. The organic matter [dissolved organic carbon (DOC) or UV absorbance at 254 nm] and bromide exerted the most important influence on the formation of HANs. While for THMs, besides the organic matter and bromide, reaction time was also a key factor. Comparing the models for total THMs (T-THMs) in this study with others revealed that the regression models from the low SUVA waters may have low DOC coefficients, but high bromide coefficients as compared with those from the high SUVA waters.
authors.affiliation: College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, People's Republic of China. huachang2002@163.com.
authors.forename: Huachang
authors.initials: H
authors.lastname: Hong
authors.affiliation: College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, People's Republic of China.
authors.forename: Qianyun
authors.initials: Q
authors.lastname: Song
authors.affiliation: Laboratory for Food Safety and Environmental Technology, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Shenzhen, 518055, People's Republic of China.|Department of Biology, University of Victoria, Victoria, BC, V8W3N5, Canada.
authors.forename: Asit
authors.initials: A
authors.lastname: Mazumder
authors.affiliation: Laboratory for Food Safety and Environmental Technology, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Shenzhen, 518055, People's Republic of China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Luo
authors.affiliation: College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, People's Republic of China.
authors.forename: Jianrong
authors.initials: J
authors.lastname: Chen
authors.affiliation: College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, People's Republic of China.
authors.forename: Hongjun
authors.initials: H
authors.lastname: Lin
authors.affiliation: College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, People's Republic of China.
authors.forename: Haiying
authors.initials: H
authors.lastname: Yu
authors.affiliation: College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, People's Republic of China.
authors.forename: Liguo
authors.initials: L
authors.lastname: Shen
authors.affiliation: Laboratory for Food Safety and Environmental Technology, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Shenzhen, 518055, People's Republic of China. yan.liang@siat.ac.cn.|Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, 830011, People's Republic of China. yan.liang@siat.ac.cn.
authors.forename: Yan
authors.initials: Y
authors.lastname: Liang
mesh_terms: D000097:Acetonitriles / Q000032:analysis / Q000737:chemistry; D002681:China; D060766:Drinking Water / Q000032:analysis; D005618:Fresh Water / Q000737:chemistry*; D054879:Halogenation; D006846:Hydrocarbons, Halogenated / Q000737:chemistry*; D008962:Models, Theoretical; D009930:Organic Chemicals / Q000737:chemistry; D022882:Trihalomethanes / Q000032:analysis / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis; D018508:Water Purification / Q000379:methods; D014881:Water Supply
chemical_list: D000097:Acetonitriles; D060766:Drinking Water; D006846:Hydrocarbons, Halogenated; D009930:Organic Chemicals; D022882:Trihalomethanes; D014874:Water Pollutants, Chemical
keywords: Chlorination; Haloacetonitriles (HANs); Low specific UV absorbance (SUVA); Regression models; Trihalomethanes (THMs); Yangtze River Delta