[Toxicity evaluation of purified terephthalic acid wastewater by using model Caenorhabditis elegans].
By using model Caenorhabditis elegans, the toxicity of purified terephthalic acid (PTA) wastewater was evaluated through a battery of biotest, including life span, days of 50% lethal, generation time, brood size, head thrashes, and body bends. The results revealed that compared with control, the life span and generation time of C. elegans exposed to 660 mg PTA x L(-1) were delayed to some degree, and its head thrashes and body bends were inhibited. The procreation function of C. elegans exposed to PTA wastewater was greatly affected, with the brood size being as low as 25% of the normal one. The most sensitive indicator, brood size of C. elegans, might be a potential indicator in evaluating PTA wastewater toxicity.
Wang
Xiao-Yi
XY
State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093, China. uptoyou66@sina.com
Wang
Da-Yong
DY
Yu
Hong-Xia
HX
Wang
Xiao-Rong
XR
Zhang
Xu-Xiang
XX
Cheng
Shu-Pei
SP
D000818:Animals; D017173:Caenorhabditis elegans / Q000187:drug effects* / Q000254:growth & development; D007220:Industrial Waste / Q000032:analysis*; D010795:Phthalic Acids / Q000633:toxicity*; D013997:Time Factors; D018675:Toxicity Tests / Q000379:methods; D014873:Water Pollutants / Q000633:toxicity*
D007220:Industrial Waste; D010795:Phthalic Acids; D014873:Water Pollutants; C011363:terephthalic acid