气候变化领域集成服务门户(CCPortal): Occurrence; toxicity and ecological risk of larvicidal oil in the coastal marine ecosystem of Hong Kong

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DOI	10.1016/j.marpolbul.2020.111178
	Occurrence; toxicity and ecological risk of larvicidal oil in the coastal marine ecosystem of Hong Kong
	Yeung K.W.Y.; Giesy J.P.; Zhou G.-J.; Leung K.M.Y.
发表日期	2020
ISSN	0025326X
卷号	156
英文摘要	Application of larvicidal oil (LO) is the most common practice in Hong Kong to control mosquitos, and hence prevent mosquito-borne diseases and protect human health. Globally, this study represented the first comprehensive assessment of toxicity and risk posed by LO to marine organisms. We found concentrations of LO ranged from 0.08 to 0.66 mg/L in coastal seawaters of Hong Kong. Waterborne exposure to water-accommodated fractions of LO resulted in growth inhibition to two microalgal species (72-h EC50: 1.92–2.90 mg/L) and acute mortality to three marine animals (96-h LC50: 3.41–8.10 mg/L). From these toxicity results, a concentration that considered to be hazardous to 5% of species (HC5) was predicted at 1.45 mg/L, while the predicted no-effect concentration was determined to be 0.29 mg/L. The hazard quotient of LO exceeded 1 at 9 out of 16 sites, indicating moderate-to-high ecological risk to exposure of LO in the marine environment of Hong Kong. © 2020 Elsevier Ltd
英文关键词	Larvicidal oil; Mosquitos; Risk assessment; Species sensitivity distribution; Toxicity
语种	英语
scopus关键词	Animals; Disease control; Ecosystems; Hazards; Marine biology; Toxicity; Coastal marine ecosystems; Comprehensive assessment; Growth inhibition; Marine environment; Mosquito-borne disease; Predicted no-effect concentrations; Water accommodated fractions; Waterborne exposure; Risk assessment; larvicidal agent; sea water; coastal zone; concentration (composition); inhibition; marine ecosystem; marine pollution; mortality; oil; risk assessment; toxicity; adult; Artemia franciscana; Article; Chaetoceros gracilis; coastal waters; concentration (parameter); controlled study; EC50; ecological risk; ecotoxicity; embryo; environmental exposure; growth inhibition; hazard; Hong Kong; Isochrysis galbana; marine species; microalga; mortality; nonhuman; Oryzias melastigma; prediction; risk; risk assessment; sea pollution; Tigriopus japonicus; animal; aquatic species; ecosystem; human; risk assessment; water pollutant; China; Hong Kong; Animalia; Animals; Aquatic Organisms; Ecosystem; Hong Kong; Humans; Risk Assessment; Seawater; 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/148922
作者单位	The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong; Department of Veterinary Biomedical Sciences and Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China; State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
推荐引用方式 GB/T 7714	Yeung K.W.Y.,Giesy J.P.,Zhou G.-J.,et al. Occurrence; toxicity and ecological risk of larvicidal oil in the coastal marine ecosystem of Hong Kong[J],2020,156.
APA	Yeung K.W.Y.,Giesy J.P.,Zhou G.-J.,&Leung K.M.Y..(2020).Occurrence; toxicity and ecological risk of larvicidal oil in the coastal marine ecosystem of Hong Kong.Marine Pollution Bulletin,156.
MLA	Yeung K.W.Y.,et al."Occurrence; toxicity and ecological risk of larvicidal oil in the coastal marine ecosystem of Hong Kong".Marine Pollution Bulletin 156(2020).