气候变化领域集成服务门户(CCPortal): Baseline concentrations of mercury species within sediments from Qatar's coastal marine zone

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DOI	10.1016/j.marpolbul.2019.04.022
	Baseline concentrations of mercury species within sediments from Qatar's coastal marine zone
	Hassan H.; Elezz A.A.; Abuasali M.; AlSaadi H.
发表日期	2019
ISSN	0025326X
起始页码	595
结束页码	602
卷号	142
英文摘要	Baseline concentration of total mercury (THg), organic extractable mercury and methylmercury (CH3Hg) concentrations in sediments from the northeastern, eastern and southeastern parts of the Arabian Gulf were assessed. Surface sediments were collected from eleven stations from the coastal waters of Qatar. All analyses were performed on homogenised samples. Total mercury analysis was performed by Cold Vapour Atomic Absorption Spectrometry (CVAAS), and methylmercury was analysed by Cold Vapour Atomic Fluorescence spectrometry (CVAFS) after aqueous phase ethylation of the extracted samples. Total mercury (THg) in sediments varied from 8.0 μg/kg to 34.3 μg/kg. Methylmercury was detected in all stations and ranged from 1.46 μg/kg to 3.10 μg/kg accounting for 5.4% to 18.4% of total mercury. Total organic carbon (TOC) ranged from 0.16 to 0.72%, while Organic extractable mercury ranged from 1.55 μg/kg to 13.3 μg/kg. Analysis, the grain size within these sediments, was carried out previously paving the way for studying the influence of these parameters on the sedimentary mercury concentration. Speciation was also assessed, as were relations between the measured mercury fractions. © 2019 Elsevier Ltd
英文关键词	Cold vapour atomic absorption spectroscopy; Cold vapour atomic fluorescence spectroscopy; Correlation analysis; Methylmercury; Organic mercury; Qatar-marine coastal sediments; Speciation; TOC; Total mercury
语种	英语
scopus关键词	Absorption spectroscopy; Atomic absorption spectrometry; Atoms; Fluorescence; Fluorescence spectroscopy; Mercury compounds; Organic carbon; Sediments; Coastal sediments; Cold vapour atomic absorption; Cold vapour atomic fluorescence spectroscopies; Correlation analysis; Methyl mercury; Organic mercury; Speciation; Total mercuries; Mercury (metal); mercury; methylmercury; mercury; methylmercury derivative; atomic absorption spectroscopy; coastal sediment; coastal zone; concentration (composition); correlation; fluorescence spectroscopy; marine pollution; mercury (element); methylmercury; sediment chemistry; speciation (chemistry); total organic carbon; Article; atomic absorption spectrometry; chemical analysis; cold vapor atomic fluorescence spectrometry; concentration (parameter); environmental impact assessment; environmental monitoring; geographic distribution; particle size; physical chemistry; physical parameters; Qatar; seashore; sediment; total organic carbon; water analysis; water pollution; analysis; procedures; Qatar; sediment; spectrofluorometry; water pollutant; Arabian Sea; Indian Ocean; Persian Gulf; Qatar; Environmental Monitoring; Geologic Sediments; Mercury; Methylmercury Compounds; Qatar; Spectrometry, Fluorescence; Spectrophotometry, Atomic; Water Pollutants, Chemical
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149914
作者单位	Environmental Science Center (ESC), Qatar University, Qatar
推荐引用方式 GB/T 7714	Hassan H.,Elezz A.A.,Abuasali M.,et al. Baseline concentrations of mercury species within sediments from Qatar's coastal marine zone[J],2019,142.
APA	Hassan H.,Elezz A.A.,Abuasali M.,&AlSaadi H..(2019).Baseline concentrations of mercury species within sediments from Qatar's coastal marine zone.Marine Pollution Bulletin,142.
MLA	Hassan H.,et al."Baseline concentrations of mercury species within sediments from Qatar's coastal marine zone".Marine Pollution Bulletin 142(2019).