Impacts of Salinity on the Hydrolysis of Chlorpyrifos
Impacts of Salinity on the Hydrolysis of Chlorpyrifos
复制标题
盐度对毒死蜱水解的影响
DOI:
10.1021/acsagscitech.2c00234
复制
发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Armbrust, Kevin L.
中科院分区:
文献类型:
--
作者:
St. Romain, Scott J.;Basirico, Laura M.;Kim, Yong-Ha;Armbrust, Kevin L.
The organophosphate insecticide, chlorpyrifos, was used as a probe to assess the individual effects of salinity and trace metals in seawater on its hydrolysis rate as their influence on organic chemicals remains poorly characterized. This investigation measured the hydrolytic degradation of chlorpyrifos to its transformation product, 3,5,6-trichloro-2-pyridinol (TCP), in five sterilized/buffered media: 25 parts per thousand (ppt) artificial seawater, 25 ppt sodium chloride (NaCl), 10 parts per billion (ppb) copper, 0.5 ppb copper, and buffered deionized water (0 ppt). Chlorpyrifos hydrolyzed 21, 62, and 13% faster in 25 ppt seawater, 10 ppb copper, and 0.5 ppb copper, respectively, and 40% slower in 25 ppt NaCl compared to 0 ppt. The formation of TCP in each medium was consistent with the observed degradation of chlorpyrifos. Trace amounts of copper at concentrations similar to those observed in freshwater environments and seawater accelerated the hydrolytic rate, while NaCl significantly inhibited it. This research illustrates the importance of considering the combined influences of trace metals as well as salinity when evaluating the environmental fate of hydrophobic organic compounds in aquatic ecosystems.
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影响因子:
6.1
作者:
Noblet, JA;Smith, LA;Suffet, IH
通讯作者:
Suffet, IH
DOI:
10.12944/cwe.8.1.17
发表时间:
2013-04
期刊:
Current World Environment
影响因子:
--
作者:
Nobonita Deb;Suchismita Das
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Nobonita Deb;Suchismita Das
DOI:
--
发表时间:
2020
期刊:
影响因子:
--
作者:
A. Pawar;S. Sanaye;S. Shyama;R. Sreepada;Ajit Sharadrao Dake
通讯作者:
Ajit Sharadrao Dake
DOI:
--
发表时间:
1982
期刊:
影响因子:
--
作者:
P. Blanchet;A. St‐George
通讯作者:
A. St‐George
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
R. Fry;M. Ison;S. Chaudhuri;S. Fry;K. Klabunde;Michael Routh;G. Fry;Barry Wroobel;S. K. Hughes;G. H. Gower
通讯作者:
G. H. Gower