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Arsenic Bioaccumulation and Biotransformation in Clams (Asaphis violascens) Exposed to Inorganic Arsenic: Effects of Species and Concentrations
Zhang, Wei; Guo, Zhiqiang2; Wu, Yun3; Qiao, Yanlong4; Zhang, Li1
2019
Source PublicationBULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
ISSN0007-4861
Volume103Issue:1Pages:114
AbstractHigh arsenic (As) concentrations are found in marine clams, usually as less-toxic arsenobetaine (AsB). However, when clams were exposed to elevated As concentrations in the environments, As species distribution within them may be altered. This study aimed to determine As bioaccumulation and biotransformation in marine clams (Asaphis violascens) along As concentration gradients for 10 days. Nine treatments of dissolved As exposure [control, 1, 3 (low), 10, 20 (high) mg/L As(III) and As(V)] were performed. Clams could biotransform low-levels of inorganic As efficiently, while they had lower biotransformation efficiencies when exposed to high As concentrations. AsB decreased with increasing As(III) and As(V) concentrations, while dimethylarsinic acid exhibited as a predominant As species in 3mg/L exposure treatments. These results suggested that As methylation, synthesis and/or degradation of AsB should be affected by exposure concentrations. Therefore, these toxic As species within clams may cause a potential toxicological hazard to human beings.
DepartmentLMB
KeywordArsenic Bioaccumulation Biotransformation Waterborne exposure Clam
DOI10.1007/s00128-018-2493-3
Citation statistics
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17815
Collection中科院海洋生物资源可持续利用重点实验室
Affiliation1.Guangzhou Univ, Inst Environm Res Greater Bay, Minist Educ, Key Lab Water Qual & Conservat Pearl River Delta, Guangzhou 510006, Guangdong, Peoples R China
2.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China
3.Hainan Univ, Coll Oceanol, State Key Lab Marine Resource Utilizat South Chin, Haikou 570228, Hainan, Peoples R China
4.Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Jiangsu Key Lab Atmospher Environm Monitoring & P, Nanjing 210044, Jiangsu, Peoples R China
5.Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300072, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Wei,Guo, Zhiqiang,Wu, Yun,et al. Arsenic Bioaccumulation and Biotransformation in Clams (Asaphis violascens) Exposed to Inorganic Arsenic: Effects of Species and Concentrations[J]. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY,2019,103(1):114, 119.
APA Zhang, Wei,Guo, Zhiqiang,Wu, Yun,Qiao, Yanlong,&Zhang, Li.(2019).Arsenic Bioaccumulation and Biotransformation in Clams (Asaphis violascens) Exposed to Inorganic Arsenic: Effects of Species and Concentrations.BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY,103(1),114.
MLA Zhang, Wei,et al."Arsenic Bioaccumulation and Biotransformation in Clams (Asaphis violascens) Exposed to Inorganic Arsenic: Effects of Species and Concentrations".BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 103.1(2019):114.
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