Influence of soil properties and aging on arsenic phytotoxicity
文献类型：期刊论文
| 作者 | Song, Jing; Zhao, Fang-Jie; McGrath, Steve P.; Luo, Yong-Ming |
| 刊名 | ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
 |
| 出版日期 | 2006-06-01 |
| 卷号 | 25期号:6页码:1663-1670 |
| 关键词 | arsenate phytotoxicity soil properties aging risk assessment |
| ISSN号 | 0730-7268 |
| 通讯作者 | Zhao, Fang-Jie(fangjie.zhao@bbsrc.ac.uk) |
| 英文摘要 | Bioavailability of As varies among soils, and this needs to be taken into account during environmental risk assessment. Using a standardized barley root elongation assay, we investigated the phytotoxicity of arsenate added to 16 European soils that varied widely in their physicochemical properties. The effective concentrations of As causing 10% (EC10) and 50% (EC50) inhibition were estimated based on the concentrations of total added As or As extracted with 0.05 M (NH4)(2)SO4 or 0.05 M NH4H2PO4. In addition, four soils were used to evaluate changes in arsenate phytotoxicity over a three-month period. The EC10s and EC50s of added As varied from 4.2 to 206.7 mg/kg and from 26.6 to 458.2 mg/kg, respectively. Multiple-regression analysis showed that the variability in the EC10 and EC50 was largely (> 89%) explained by the contents of amorphous Mn oxide and clay and, to a lesser extent, Fe oxide, indicating that arsenate adsorption was a key factor controlling its bioavailability. Neither (NH4)(2)SO4 nor NH4H2PO4 extraction could explain arsenate phytotoxicity independently of soil properties. Furthermore, arsenate phytotoxicity decreased significantly after aging for three months, although the extent of aging differed among soils. This aging effect should be taken into account during the risk assessment. |
| 收录类别 | SCI |
| WOS关键词 | CONTAMINATED SOILS ; CLAY-MINERALS ; ADSORPTION ; SORPTION ; BIOACCESSIBILITY ; EXTRACTION ; CHEMISTRY ; TOXICITY ; AS(V) ; OXIDE |
| WOS研究方向 | Environmental Sciences & Ecology ; Toxicology |
| WOS类目 | Environmental Sciences ; Toxicology |
| 语种 | 英语 |
| WOS记录号 | WOS:000240360300028 |
| 出版者 | SETAC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558547 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Zhao, Fang-Jie |
| 作者单位 | 1.Rothamsted Res, Agr & Environm Div, Harpenden AL5 2JQ, Herts, England 2.Chinese Acad Sci, Inst Soil Sci, Soil & Environm Bioremediat Res Ctr, State Key Lab Soil & Sustainable Agr, Nanjing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Jing,Zhao, Fang-Jie,McGrath, Steve P.,et al. Influence of soil properties and aging on arsenic phytotoxicity[J]. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY,2006,25(6):1663-1670. |
| APA | Song, Jing,Zhao, Fang-Jie,McGrath, Steve P.,&Luo, Yong-Ming.(2006).Influence of soil properties and aging on arsenic phytotoxicity.ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY,25(6),1663-1670. |
| MLA | Song, Jing,et al."Influence of soil properties and aging on arsenic phytotoxicity".ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 25.6(2006):1663-1670. |
入库方式： iSwitch采集
来源：南京土壤研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。