Dynamics of Reactive Sulfide and its Control on Metal Bioavailability and Toxicity in Metal-Polluted Sediments from Lake Taihu, China
Dynamics of Reactive Sulfide and its Control on Metal Bioavailability and Toxicity in Metal-Polluted Sediments from Lake Taihu, China
复制标题
太湖金属污染沉积物中活性硫化物的动态及其对金属生物有效性和毒性的控制
DOI:
10.1007/s00244-010-9575-5
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发表时间:
2011-05
影响因子:
4
通讯作者:
Fan, Chengxin
中科院分区:
文献类型:
--
作者:
Yin, Hongbin;Fan, Chengxin
This study was conducted to elucidate the vertical and seasonal distribution of acid-volatile sulfide (AVS) and simultaneously extracted metals (SEM) in sediment cores of metal-polluted areas of Lake Taihu, China. The concentrations of AVS in sediments were more dynamic than the SEM values, which were higher in warmer seasons. Two types of AVS profiles were identified in the studied area. Generally, the AVS levels increased at a certain depth (6–18 cm), below which they decreased, except for two sites during summer. Very high concentrations of AVS were observed at these two sites during summer, and its concentrations decreased almost exponentially with increased depth. The higher content of AVS near surface sediments in summer at these two sites was attributed to a high input of organic matter resulting from dead algal deposits. The SEM contents decreased with depth and remained almost constant with season. Metal toxicity in the sediment cores was assessed on the basis of three models: ΣSEM − AVS, ΣSEM/AVS, and ΣSEM − AVS/fOC, and the results showed that toxicity occurred in the surface sediment interval (0–1 cm) at one site during winter.
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DOI:
10.1007/s00128-008-9387-8
发表时间:
2008-03
期刊:
Bull Environ Contam Toxicol
影响因子:
--
作者:
C. X. Fan;B. Li;H. B. Yin;S. M. Ding;L. Zhang
通讯作者:
L. Zhang
DOI:
--
发表时间:
2000
期刊:
--
影响因子:
--
作者:
William;W. Broenkow;J. Cline
通讯作者:
William;W. Broenkow;J. Cline
影响因子:
4.1
作者:
G. A. Burton;L. Nguyen;Colin R. Janssen;R. Baudo;Ruth A. McWilliam;B. Bossuyt;M. Beltrami;A. Green
通讯作者:
G. A. Burton;L. Nguyen;Colin R. Janssen;R. Baudo;Ruth A. McWilliam;B. Bossuyt;M. Beltrami;A. Green
DOI:
10.1007/s00244-008-9206-6
发表时间:
2009-04
影响因子:
4
作者:
O. Campana;Antonio Rodríguez;Julián Blasco
通讯作者:
O. Campana;Antonio Rodríguez;Julián Blasco
影响因子:
11.4
作者:
DITORO, DM;MAHONY, JD;ANKLEY, GT
通讯作者:
ANKLEY, GT