气候变化领域集成服务门户(CCPortal): Ultra-trace carbazoles in sediment samples of the Weser and Elbe Rivers and the North Sea in 2012 to 2014

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.877302
	Ultra-trace carbazoles in sediment samples of the Weser and Elbe Rivers and the North Sea in 2012 to 2014
	Chen; Wen-Ling; Xie; Zhiyong; Wolschke; Hendrik; Gandrass; Juergen; Kötke; Danijela; Winkelmann; Magnus; Ebinghaus; Ralf
发布日期	2016-06-29
数据集类型	dataset
英文简介	Carbazole and some of its derivatives may possess dioxin-like toxicity and could be persistent in the environment, but information on their distribution and environmental fate is limited. This study developed and validated an ultra-trace targeted-analysis method for the determination of carbazole, 1,2-benzocarbazole, and 13 halogenated carbazoles in sediments from the river, coast, and North Sea. An 8-g sediment sample was extracted using accelerated solvent extraction combined with in-cell cleanup and analyzed using gas chromatography-tandem mass spectrometry. The method was sensitive and reliable with method detection limits ranging from 4.54 to 52.9 pg/g, and most of the quantification biases and relative standard deviations were <20 and <15%, respectively. Carbazole and 1,2-benzocarbazole were the predominant substances in the sediments (median 565 and 369 pg/g, respectively) followed by 3,6-dichlorocarbazole (median 196 pg/g). The detection frequencies of carbazole, benzo-, 3-chloro-, and 3,6-dichlorocarbazole were >75%, while those of 3,6-dibromo-, 1-bromo-3,6-dichloro-, and 1,8-dibromo-3,6-dichlorocarbazole were approximately 50%. Brominated carbazoles occurred more frequently in marine than river-influenced sediments, which could indicate halogenation after discharge into the river. This is the first study regarding these substances in coastal environments without apparent contamination history. The ubiquity and bioaccumulative potential of these substances needs to be considered.
空间范围	Median Latitude: 53.616111 * Median Longitude: 9.071519 * South-bound Latitude: 51.868000 * West-bound Longitude: 5.586000 * North-bound Latitude: 55.037830 * East-bound Longitude: 12.241000
时间范围	2012-08-15T09:58:00 - 2014-05-13T14:41:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/216473
推荐引用方式 GB/T 7714	Chen,Wen-Ling,Xie,et al. Ultra-trace carbazoles in sediment samples of the Weser and Elbe Rivers and the North Sea in 2012 to 2014.2016-06-29.https://doi.org/10.1594/PANGAEA.877302.