首页|Cytotoxicity and genotoxicity evaluation of urban surface waters using freshwater luminescent bacteria Vibrio-qinghaiensis sp.-Q67 and Vicia faba root tip

Cytotoxicity and genotoxicity evaluation of urban surface waters using freshwater luminescent bacteria Vibrio-qinghaiensis sp.-Q67 and Vicia faba root tip

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
The freshwater luminescent bacteria Vibrio-qinghaiensis sp.-Q67 test and the Vicia faba root tip test associated with solid-phase extraction were applied for cytotoxicity and genotoxicity assessment of organic substances in three rivers,two lakes and effluent flows from two wastewater treatment plants (WWTPs) in Xi'an,China.Although the most seriously polluted river with high chemical oxygen demand (COD) and total organic carbon (TOC) showed high cytotoxicity (expressed as TH50,the toxicity impact index) and genotoxicity (expressed as RMCN,the relative frequency of micronucleus),no correlative relation was found between the ecotoxicity and organic content of the water samples.However,there was a linear correlative relation between TⅡ50 and RMCN for most water samples except that from the Zaohe River,which receives discharge from WWTP and untreated industrial wastewaters.The ecotoxicity of the organic toxicants in the Chanhe River and Zaohe River indicated that cytotoxic and genotoxic effects were related to the pollutant source.The TⅡ50 and RMCN were also found to correlate roughly to the dissolved oxygen concentration of the water.Sufficient dissolved oxygen in surface water is thus proved to be an indicator of a healthy water environmental condition.

cytotoxicitygenotoxicitysurface waterluminescent bacteriaVicia faba root tip

Xiaoyan Ma、Xiaochang Wang、Yongjun Liu

展开 >

Key Lab of Northwest Water Resources, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China

国家自然科学基金Program for Changjiang Scholars and Innovative Research Team in UniversityNational Program of Water Pollution Control

50838005IRT08532008ZX07317-004

2012

10.1016/S1001-0742(11)61012-7

环境科学学报(英文版)
中科院生态环境研究中心

环境科学学报(英文版)

CSTPCDCSCDSCI
影响因子：0.862
ISSN：1001-0742
年,卷(期)：2012.24(10)
  • 7
  • 1