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Article: Accidental Spill of Palm Stearin Poses Relatively Short-Term Ecological Risks to a Tropical Coastal Marine Ecosystem

TitleAccidental Spill of Palm Stearin Poses Relatively Short-Term Ecological Risks to a Tropical Coastal Marine Ecosystem
Authors
KeywordsAccidents
Ecosystems
River pollution
Tropics
Coastal marine ecosystems
Issue Date2019
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/esthag
Citation
Environmental Science & Technology, 2019, v. 53, p. 12269-12277 How to Cite?
AbstractIn early August 2017, a serious palm stearin pollution accident occurred in the Pearl River Estuary, South China. While there were already several palm oil related spills around the world, the ecological effects and risks of such accidents to coastal marine environments remain largely unknown. In this study, we found that all seawater and sediment samples collected from six coastal sites were heavily contaminated by palm stearin within 1 week of the accident, and their levels significantly decreased to preaccident levels after four months. Waterborne exposure to palm stearin resulted in growth inhibition to four microalgal species (range of EC50: 9.9–212.6 mg/L) and acute mortality to four invertebrate species (range of LC50: 4.6–409.3 mg/L), while adverse chronic effects of palm stearin on the survival, development, and fecundity of Tigriopus japonicus and on the growth of Oryzias melastigma were observed. On the basis of these results, its interim-predicted no effect concentration was determined as 0.141 mg/L. The hazard quotient of palm stearin greatly exceeded 1 at all sites in August 2017 but returned to <1 at four sites and <2 at the other two sites in November 2017, indicating that its ecological risk was relatively transient and short-term.
Persistent Identifierhttp://hdl.handle.net/10722/284707
ISSN
2020 Impact Factor: 9.028
2020 SCImago Journal Rankings: 2.851
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhou, GJ-
dc.contributor.authorLAI, RWS-
dc.contributor.authorSHAM, RCT-
dc.contributor.authorLam, CS-
dc.contributor.authorYEUNG, KWY-
dc.contributor.authorAstudillo Placencia, JC-
dc.contributor.authorHo, KKY-
dc.contributor.authorYung, MMN-
dc.contributor.authorYAU, JKC-
dc.contributor.authorLeung, KMY-
dc.date.accessioned2020-08-07T09:01:35Z-
dc.date.available2020-08-07T09:01:35Z-
dc.date.issued2019-
dc.identifier.citationEnvironmental Science & Technology, 2019, v. 53, p. 12269-12277-
dc.identifier.issn0013-936X-
dc.identifier.urihttp://hdl.handle.net/10722/284707-
dc.description.abstractIn early August 2017, a serious palm stearin pollution accident occurred in the Pearl River Estuary, South China. While there were already several palm oil related spills around the world, the ecological effects and risks of such accidents to coastal marine environments remain largely unknown. In this study, we found that all seawater and sediment samples collected from six coastal sites were heavily contaminated by palm stearin within 1 week of the accident, and their levels significantly decreased to preaccident levels after four months. Waterborne exposure to palm stearin resulted in growth inhibition to four microalgal species (range of EC50: 9.9–212.6 mg/L) and acute mortality to four invertebrate species (range of LC50: 4.6–409.3 mg/L), while adverse chronic effects of palm stearin on the survival, development, and fecundity of Tigriopus japonicus and on the growth of Oryzias melastigma were observed. On the basis of these results, its interim-predicted no effect concentration was determined as 0.141 mg/L. The hazard quotient of palm stearin greatly exceeded 1 at all sites in August 2017 but returned to <1 at four sites and <2 at the other two sites in November 2017, indicating that its ecological risk was relatively transient and short-term.-
dc.languageeng-
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/esthag-
dc.relation.ispartofEnvironmental Science & Technology-
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in [JournalTitle], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.html].-
dc.subjectAccidents-
dc.subjectEcosystems-
dc.subjectRiver pollution-
dc.subjectTropics-
dc.subjectCoastal marine ecosystems-
dc.titleAccidental Spill of Palm Stearin Poses Relatively Short-Term Ecological Risks to a Tropical Coastal Marine Ecosystem-
dc.typeArticle-
dc.identifier.emailZhou, GJ: zhougj@hku.hk-
dc.identifier.emailAstudillo Placencia, JC: jcarlos@connect.hku.hk-
dc.identifier.emailLeung, KMY: kmyleung@hku.hk-
dc.identifier.authorityLeung, KMY=rp00733-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acs.est.9b04636-
dc.identifier.pmid31556997-
dc.identifier.scopuseid_2-s2.0-85073229362-
dc.identifier.hkuros311980-
dc.identifier.volume53-
dc.identifier.spage12269-
dc.identifier.epage12277-
dc.identifier.isiWOS:000495467500014-
dc.publisher.placeUnited States-
dc.identifier.issnl0013-936X-

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