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Article: The effects of particle-induced oxidative damage from exposure to airborne fine particulate matter components in the vicinity of landfill sites on Hong Kong

TitleThe effects of particle-induced oxidative damage from exposure to airborne fine particulate matter components in the vicinity of landfill sites on Hong Kong
Authors
KeywordsLandfills
PM2.5
Ambient air
Landfill composites
Oxidative potential
Issue Date2019
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphere
Citation
Chemosphere, 2019, v. 230, p. 578-586 How to Cite?
AbstractThe physical, chemical and bioreactivity characteristics of fine particulate matter (PM2.5) collected near (<1 km) two landfill sites and downwind urban sites were investigated. The PM2.5 concentrations were significantly higher in winter than summer. Diurnal variations of PM2.5 were recorded at both landfill sites. Soot aggregate particles were identified near the landfill sites, which indicated that combustion pollution due to landfill activities was a significant source. High correlation coefficients (r) implied several inorganic elements and water-soluble inorganic ions (vanadium (V), copper (Cu), chloride (Cl−), nitrate (NO3−), sodium (Na) and potassium (K)) were positively associated with wind flow from the landfill sites. Nevertheless, no significant correlations were also identified between these components against DNA damage. Significant associations were observed between DNA damage and some heavy metals such as cadmium (Cd) and lead (Pb), and total Polycyclic Aromatic Hydrocarbons (PAHs) during the summer. The insignificant associations of DNA damage under increased wind frequency from landfills suggested that the PM2.5 loading from sources such as regional sources was possibly an important contributing factor for DNA damage. This outcome warrants the further development of effective and source-specific landfill management regulations for particulate matter production control to the city.
Persistent Identifierhttp://hdl.handle.net/10722/277765
ISSN
2019 Impact Factor: 5.778
2015 SCImago Journal Rankings: 1.536

 

DC FieldValueLanguage
dc.contributor.authorLui, KH-
dc.contributor.authorJones, T-
dc.contributor.authorBeruBe, K-
dc.contributor.authorHo, SSH-
dc.contributor.authorYim, SHL-
dc.contributor.authorCAO, JJ-
dc.contributor.authorLee, SC-
dc.contributor.authorTian, L-
dc.contributor.authorMin, DW-
dc.contributor.authorHo, KF-
dc.date.accessioned2019-10-04T08:00:54Z-
dc.date.available2019-10-04T08:00:54Z-
dc.date.issued2019-
dc.identifier.citationChemosphere, 2019, v. 230, p. 578-586-
dc.identifier.issn0045-6535-
dc.identifier.urihttp://hdl.handle.net/10722/277765-
dc.description.abstractThe physical, chemical and bioreactivity characteristics of fine particulate matter (PM2.5) collected near (<1 km) two landfill sites and downwind urban sites were investigated. The PM2.5 concentrations were significantly higher in winter than summer. Diurnal variations of PM2.5 were recorded at both landfill sites. Soot aggregate particles were identified near the landfill sites, which indicated that combustion pollution due to landfill activities was a significant source. High correlation coefficients (r) implied several inorganic elements and water-soluble inorganic ions (vanadium (V), copper (Cu), chloride (Cl−), nitrate (NO3−), sodium (Na) and potassium (K)) were positively associated with wind flow from the landfill sites. Nevertheless, no significant correlations were also identified between these components against DNA damage. Significant associations were observed between DNA damage and some heavy metals such as cadmium (Cd) and lead (Pb), and total Polycyclic Aromatic Hydrocarbons (PAHs) during the summer. The insignificant associations of DNA damage under increased wind frequency from landfills suggested that the PM2.5 loading from sources such as regional sources was possibly an important contributing factor for DNA damage. This outcome warrants the further development of effective and source-specific landfill management regulations for particulate matter production control to the city.-
dc.languageeng-
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphere-
dc.relation.ispartofChemosphere-
dc.subjectLandfills-
dc.subjectPM2.5-
dc.subjectAmbient air-
dc.subjectLandfill composites-
dc.subjectOxidative potential-
dc.titleThe effects of particle-induced oxidative damage from exposure to airborne fine particulate matter components in the vicinity of landfill sites on Hong Kong-
dc.typeArticle-
dc.identifier.emailTian, L: linweit@hku.hk-
dc.identifier.authorityTian, L=rp01991-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.chemosphere.2019.05.079-
dc.identifier.pmid31125886-
dc.identifier.scopuseid_2-s2.0-85066071825-
dc.identifier.hkuros306392-
dc.identifier.volume230-
dc.identifier.spage578-
dc.identifier.epage586-
dc.publisher.placeUnited Kingdom-

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