摘要
于1993年4月-1993年5月以Zn2+,Cd2+,Pb2+,Cu2+不同浓度的海水对。角褐指藻进行生长影响的研究。实验表明,Cu2+对三角褐指藻生长的毒性最大,其96hEC50为0.017mg/L。Pb2+的毒性最小,其96hEC50为0.468mg/L。4种重金属离子的毒性顺序是Cu2+>Cd2+>Zn2+>Ph2+,除Cd2+外,其他3种金属离子对该单细胞藻的生长安全浓度均低于国家海水水质标准。其结果对今后国家修订海水水质标准将提供参考作用。
The present study on the toxici effect of Zn, Cd, Pb, Cu ions at different con-centrations on growth of Phacodartylum tricornutum shows that the toxicity is inthe order Cu>Cd>Zn>Pb. The EC50, 96h of the four metal ions for the Pha-eodactylum tricornutum tested were 0.017 mg/L for Cu, O.l20 mg/L for Cd, 0.363mg/L for Zn and 0.468 mg/L for Pb. The safe concentration of Cu, Zn, Pb, forgrowth of Phaeodactylum tricornutum is lower than that of the marine water qua-lity standard. This result is important for revising the water quality standard.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
1995年第6期582-585,共4页
Oceanologia Et Limnologia Sinica
基金
国家自然科学基金!491762727