Seasonal Trends of Atmospheric PAHs in Five Asian Megacities and Source Detection Using Suitable Biomarkers
dc.contributor.author | Saha, M. | |
dc.contributor.author | Maharana, D. | |
dc.contributor.author | Kurumisawa, R. | |
dc.contributor.author | Takada, H. | |
dc.contributor.author | Yeo, B.G. | |
dc.contributor.author | Rodrigues, A.C. | |
dc.contributor.author | Zakaria, M.P. | |
dc.contributor.author | Giang, D.H. | |
dc.contributor.author | Viet, P.H. | |
dc.contributor.author | Bhattacharya, B. | |
dc.contributor.author | Kumata, H. | |
dc.contributor.author | Okuda, T. | |
dc.contributor.author | He, K. | |
dc.contributor.author | Ma, Y. | |
dc.contributor.author | Nakajima, F. | |
dc.date.accessioned | 18/2/2019 | |
dc.date.accessioned | 2019-02-18T20:16:35Z | |
dc.date.available | 30/9/2017 | |
dc.date.available | 2019-02-18T20:16:35Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Aerosol and Air Quality Research, vol.17(9); 2017; 2247-2262 | |
dc.identifier.issn | 1680-8584 | |
dc.identifier.uri | https://doi.org/10.4209/aaqr.2017.05.0163 | |
dc.identifier.uri | http://drs.nio.org/drs/handle/2264/7922 | |
dc.description.abstract | The most prevalent pollutant, polycyclic aromatic hydrocarbons (PAHs) is now plenteously distributed in the global atmosphere. We recently quantified 36 polycyclic aromatic hydrocarbons (PAHs) associated with aerosols (particulate matter: PM) in five Asian cities: Tokyo (Japan), Beijing (China), Kolkata (India), Hanoi (Vietnam), and Kuala Lumpur (Malaysia). Average atmospheric PAH concentrations (12 PAHs-ng m-3) increased in the order of Kuala Lumpur (2.99) Tokyo (3.95) < Hanoi (7.99) << Kolkata (63.5) << Beijing (142.8). The most abundant PAHs in PM samples in these cities were chrysene, benz[a]anthracene, benzofluoranthenes, benzo[a]pyrene, and benzo[e]pyrene. We used the PAH compositions, especially the relative abundances of alkylated PAHs, and hopanes to determine vehicle exhaust-derived PAHs, and levoglucosan as a tracer for biomass burning, especially from wood combustion. Vehicle exhaust contributed to atmospheric PAHs in all cities, indicated by higher ratios of (C3017)/total PAHs and MPAHs/PAHs than coal and wood combustion products. Coal combustion contributed also in winter aerosols in Beijing, indicated by higher abundance of isomers i.e., 1721 (H)-C30hopane (C3017) and 1721 (H)-C29hopane (C2917) signifying mass use of coal for heating. The ratio of levoglucosan/PAHs was high in Kuala Lumpur and Hanoi, suggesting greater inputs of PAHs from biomass burning there | |
dc.language | en | |
dc.publisher | Taiwan Association for Aerosol Research | |
dc.relation.isreferencedby | SCI | |
dc.title | Seasonal Trends of Atmospheric PAHs in Five Asian Megacities and Source Detection Using Suitable Biomarkers | |
dc.type | Journal Article | |
dc.affiliation.author | CSIR-National Institute of Oceanography, Dona Paula, Goa, India |
Files in this item
Files | Size | Format | View |
---|---|---|---|
There are no files associated with this item. |
This item appears in the following Collection(s)
-
Scholarly literature [8950]