[Investigation of bromate, haloacetic acids and perchlorate in Beijing's drinking water].
Disinfection by-products and perchlorate in the raw water and finished water of Beijing's a drinking water plants were investigated. The results indicated that there was little bromate in the drinking water. Five haloacetic acids (HAAs) were found in the water. The concentrations of the sum of the five HAAs were ranged from 42.1 micrograms/L to 149.5 micrograms/L. In the HAAs, the chlorine-containing HAAs accounted for more than 90% of the total HAAs. In the five HAAs, the concentration order of the HAAs were trichloroacetic acid > dichloroacetic acid > bromochloroacetic acid > dibromoacetic acid > bromodichloroacetic acid. The HAAs in Beijing's drinking water were much influenced by the variation of season. They had the highest concentrations in September and lowest concentration in April, respectively. For perchlorate in Beijing's drinking water, it was greatly influenced by the groundwater. Its concentrations were between 0.1-6.8 micrograms/L in the finished drinking water. It had peak value in November and minimum value in July, respectively.
Liu
Yong-jian
YJ
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Mou
Shi-fen
SF
Lin
Ai-wu
AW
Cui
Jian-hua
JH
Du
Bing
B
D000085:Acetates / Q000032:analysis; D001959:Bromates / Q000032:analysis*; D004203:Disinfection; D010472:Perchlorates / Q000032:analysis*; D012621:Seasons; D017670:Sodium Compounds / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014881:Water Supply / Q000032:analysis*
D000085:Acetates; D001959:Bromates; D010472:Perchlorates; D017670:Sodium Compounds; D014874:Water Pollutants, Chemical; C088674:dibromoacetic acid; C031068:sodium perchlorate; C099813:bromochloroacetic acid; C100580:bromodichloroacetic acid