Evaluation of the Toxic Effects of Heavy Metals and Endocrine-Disrupting Chemicals to the Marine Dinoflagellate Prorocentrum minimum
Microalgae are bioindicators for risk assessment and development of environmental regulations for heavy metals and other emerging toxicants in marine environments.In this study,we evaluated the toxic effects of the heavy metals Cd,Pb,and Ni,and the endocrine disrupting chemicals (EDCs) polychlorinated biphenyl (PCB),endosulfan (ES),and metolachlor (MC) on the marine dinoflagellate Prorocentrum minimum.Toxicity assays showed that cell count and chlorophyll a level decreased with increased toxicant concentrations in all cases.EC50-72 h for the test chemicals were as follows:Cd,2.78 mg L-1; Pb,3.49 mg L-1; Ni,0.64mg L-1; PCB,8.0μg L-1; ES,0.025 mg L-1; MC,0.079 mg L-1.These data suggested that the sensitivity pattem of P.minimum to heavy metals was Ni > Cd > Pb; three EDCs were mostly sensitive,and the PCB was highly toxic.This study provides essential data on the toxic effects of heavy metals and newly introduced EDCs on marine dinoflagellate.
Dinoflagellate Prorocentrum ecotoxicity assessment EC50, heavy metals EDCs
Vinitha Ebenezer Ruoyu Guo Jang-Seu Ki
Department of Green Life Science Sangrnyung University Seoul-110-743,South Korea
国际会议
Conference on Environmental Pollution and Public Health (2012年环境污染与大众健康学术会议(CEPPH2012))
上海
英文
470-475
2012-08-09（万方平台首次上网日期，不代表论文的发表时间）