Single and joint effects of petroleum hydrocarbons and cadmium on the polychaete Perinereis aibuhitensis Grube

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	Single and joint effects of petroleum hydrocarbons and cadmium on the polychaete Perinereis aibuhitensis Grube
	Wang, J; Zhou, QX; Zhang, QR; Zhang, Y; Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terrestrial Ecol Proc, Shenyang 110016, Peoples R China
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
	2008
卷号	20 期号:1 页码:68-74
关键词	Petroleum Hydrocarbon Cadmium Combined Pollution Perinereis Aibuhitensis Grube Ecotoxicology
ISSN号	1001-0742
英文摘要	Using the concentration gradient and combined pollutant exposure method, the single and joint effects of petroleum hydrocarbons (PHCs) and cadmium (Cd) on polychaete Perinereis aibuhitensis Grube, an ecologically keystone species in estuarine and coastal environment, have been investigated. The results indicate that the toxicity of PHCs to R aibuhitensis is stronger than that of Cd to the organism. There are positive correlations between the mortality of worms and the exposed concentration of single Cd or PHCs in solution. Similarly, the accumulation of Cd or PHCs in worms increased with increasing Cd- or PHC-exposed concentrations. All the correlation relationships can be described using unitary quadratic equations (Y or Z = aX(2) + bX + c). It is calculated, on the basis of these expressions, that the median lethal dose (LC50) of R aibuhitensis exposed to a single Cd or PHCs is 793.4-13567.3 and 28.0-119.9 mu g/L, respectively. The exposed time has some stimulative effect on the two pollutants and on the mortality of the worms. Thus, even a low concentration of a single Cd or PHCs may have strong toxic effects on the worms when the exposed time becomes longer. The accumulation of Cd or PHCs in worms differs with an increase in exposure time at the given exposed concentration of a single Cd or PHCs. Noticeably, the accumulation of PHCs in worms decreases with an increase in exposure time at the given high concentration of PHCs in solution. The joint effect of PHCs and Cd on P aibuhitensis is very complicated and changes with the exposed concentrations of the two pollutants. At the given concentration of PHCs, the joint toxicity of the two pollutants on the worms changes from synergism to antagonism with an increase in Cd concentration. The accumulation of Cd in the worms significantly decreases with the addition of PHCs to exposure solution.
学科主题	Environmental Sciences
语种	英语
WOS记录号	WOS:000252455700010
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54551]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terrestrial Ecol Proc, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, J,Zhou, QX,Zhang, QR,et al. Single and joint effects of petroleum hydrocarbons and cadmium on the polychaete Perinereis aibuhitensis Grube[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2008,20(1):68-74.
APA	Wang, J,Zhou, QX,Zhang, QR,Zhang, Y,&Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terrestrial Ecol Proc, Shenyang 110016, Peoples R China.(2008).Single and joint effects of petroleum hydrocarbons and cadmium on the polychaete Perinereis aibuhitensis Grube.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,20(1),68-74.
MLA	Wang, J,et al."Single and joint effects of petroleum hydrocarbons and cadmium on the polychaete Perinereis aibuhitensis Grube".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 20.1(2008):68-74.