气候变化领域集成服务门户(CCPortal): Spatiotemporal characterization of metals in small craft harbour sediments in Nova Scotia; Canada

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DOI	10.1016/j.marpolbul.2019.02.004
	Spatiotemporal characterization of metals in small craft harbour sediments in Nova Scotia; Canada
	Zhang H.; Walker T.R.; Davis E.; Ma G.
发表日期	2019
ISSN	0025326X
起始页码	493
结束页码	502
卷号	140
英文摘要	Spatiotemporal (2001–2017) characterization of sediment metal concentrations were assessed in 31 small craft harbours (SCHs) in Nova Scotia, Canada by analyzing secondary data from government sediment assessment reports. Surficial sediment samples (n = 576) were collected prior to routine maintenance or constriction dredging activities. Sediment metal concentration ranges were 0.5–62 (As), 0.05–3.8 (Cd), 1–305 (Cr), 0.5–220 (Cu), 0.003–1.85 (Hg), 0.73–583 (Pb) and 5–2300 (Zn) mg/kg (dw), respectively. Most sediment metal concentrations (>56% of samples) were below low effect level and >96% were below high effect level sediment quality guidelines, suggesting limited ecological impairment to marine biota. Despite wide temporal coverage (16 years), large variation in sediment concentrations across SCHs were likely due to regular dredging activities preventing long-term accumulation of contaminants. Spatial distribution and enrichment factor results revealed that Canso was most impacted by metals, followed by Clarks Harbour. © 2019 Elsevier Ltd
英文关键词	Nova Scotia (NS); Sediment metal concentrations; Sediment quality guidelines (SQGs); Small craft harbours (SCHs)
语种	英语
scopus关键词	Marine engineering; Metals; Sedimentology; Surficial sediments; Metal concentrations; Nova Scotia; Routine maintenance; Sediment concentration; Sediment quality guideline (SQGs); Sediment quality guidelines; Small craft; Spatiotemporal characterization; Dredging; arsenic; cadmium; chromium; copper; lead; zinc; heavy metal; coastal sediment; concentration (composition); enrichment; guideline; harbor; metal; pollution monitoring; sediment pollution; spatial distribution; spatiotemporal analysis; Article; biota; Canada; chemical analysis; chemical composition; dredging; environmental impact assessment; freshwater environment; heavy metal poisoning; limit of detection; marine environment; physical chemistry; practice guideline; sediment; small craft harbour sediment; spatiotemporal analysis; analysis; chemistry; environmental monitoring; Nova Scotia; procedures; sediment; ship; water pollutant; Canada; Nova Scotia; Environmental Monitoring; Geologic Sediments; Metals, Heavy; Nova Scotia; Ships; Spatio-Temporal Analysis; 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/150069
作者单位	Key Laboratory of Eco-remediation of Regional Polluted Environment, Ministry (Shenyang University), Shenyang, 110044, China; School for Resource and Environmental Studies, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
推荐引用方式 GB/T 7714	Zhang H.,Walker T.R.,Davis E.,et al. Spatiotemporal characterization of metals in small craft harbour sediments in Nova Scotia; Canada[J],2019,140.
APA	Zhang H.,Walker T.R.,Davis E.,&Ma G..(2019).Spatiotemporal characterization of metals in small craft harbour sediments in Nova Scotia; Canada.Marine Pollution Bulletin,140.
MLA	Zhang H.,et al."Spatiotemporal characterization of metals in small craft harbour sediments in Nova Scotia; Canada".Marine Pollution Bulletin 140(2019).