排序方式: 共有44条查询结果,搜索用时 0 毫秒
41.
42.
43.
A national reconnaissance for selected organic micropollutants in sediments on French territory 总被引:1,自引:0,他引:1
Emmanuelle Vulliet Alexandra Berlioz-Barbier Florent Lafay Robert Baudot Laure Wiest Antoine Vauchez François Lestremau Fabrizio Botta Cécile Cren-Olivé 《Environmental science and pollution research international》2014,21(19):11370-11379
To collect a large data set regarding the occurrence of organic substances in sediment, this study presents the examination of 20 micropollutants, as a national survey. The list of target compounds contains two alkylphenols, three polycyclic aromatic hydrocarbons (PAHs) not commonly included in monitoring programmes, six pesticides or metabolites, five pharmaceutical compounds, two hormones, one UV filter and bisphenol A. The selective and sensitive analytical methods, based on quick, easy, cheap, effective, rugged, and safe (QuEChERS) sample preparation followed by liquid chromatography-tandem mass spectrometry (LC-MS/MS) or gas chromatography-time-of-flight mass spectrometry (GC-ToF-MS), allow the quantification at limits comprised between 0.5 and 23 ng/g, depending on the compound. The paper summarizes the analytical results from 154 sampling points. Of the 20 target compounds, 9 were determined at least once, and the sediments contained a maximum of 7 substances. The most frequently detected were PAHs (frequency, 77 %; max., 1,400 ng/g). The pharmaceutical compounds, hormones and pesticides were rarely detected in the samples; the most frequently detected was carbamazepine (frequency, 6 %; max., 31 ng/g). In some cases, the levels of PAHs and bisphenol A exceed the predicted no-effect concentration (PNEC) values. 相似文献
44.
Augeraud-Veron Emmanuelle Pereau Jean-Christophe 《Environmental Modeling and Assessment》2022,27(4):693-713
Environmental Modeling & Assessment - The design of optimal water policies between farmers, municipalities, and groundwater-dependent ecosystems is analyzed in a hydro-economic model with... 相似文献