Attributing risk burden of PM2.5-bound polycyclic aromatic hydrocarbons to major emission sources: Case study in Guangzhou, south China

Yu, Qingqing; Gao, Bo; Li, Guanghui; Zhang, Yanli; He, Quanfu; Deng, Wei; Huang, Zhi‐Zhen; Ding, Xiang; Hu, Qihou; Huang, Zujian; Wang, Yujun; Bi, Xinhui; Wang, Xinming

doi:10.1016/j.atmosenv.2016.08.009

Cited by 47 publications

(38 citation statements)

References 56 publications

(71 reference statements)

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“…3). Similar trends have been reported in other studies (Varder et al, 2008;Morville et al, 2011;Yu et al, 2016) The ratios of ∑36 PAHs in winter (OctoberFebruary) to those in the rest of the year were 16 in Beijing, 7.8 in Kolkata, 2.6 in Hanoi, 1.4 in Tokyo, and 0.8 in Kuala Lumpur.…”

Section: Seasonal Variations In Pah Concentrationssupporting

confidence: 76%

“…The highest concentration of PAHs in Beijing is comparable to previous study (e.g., 116 ng m -3 ; Zhou et al, 2005). Although many of the previous studies also found higher PAHs in Beijing than in other cities of China (Liu et al, 2014;Liu et al, 2015;Yu et al, 2016), in a recent study, source control measures implemented by the city to diminish concentrations of atmospheric PAHs in Beijing (Tang et al, 2017).…”

Section: Spatial Pattern Of Pahssupporting

confidence: 69%

“…A number of studies have focused on atmospheric PAHs in developing nations such as China, India, Hong Kong, and Thailand (Chetwittayachan et al, 2002;Sun et al, 2004;Ravindra et al, 2006;Haggler et al, 2007;Liu et al, 2007;Okuda et al, 2010;Masih et al, 2012;Li et al, 2016;Pongpiachan, 2016;Wiriya et al, 2016;Yu et al, 2016;Tang et al, 2017;Zhou et al, 2017). Some studies have reported that vehicular emissions are the primary cause of PAH pollution in many Japanese cities (Chetwittayachan et al, 2002;Hayakawa, 2009;Murakami et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…The main source of PAHs in Kuala Lumpur, Malaysia, is vehicular emissions, since motor vehicles contribute as much as 82% of atmospheric pollutants (MEQR, 1996; Atmospheric PAHs can be formed by coal or wood combustion or by petroleum combustion. Petroleum-derived sources are evaluated by using hopane biomarkers (Zakaria et al, 2000(Zakaria et al, , 2001(Zakaria et al, , 2002Boonyatumanond et al, 2006;Saha et al, 2009Saha et al, , 2012Yu et al, 2016). Hopanes are pentacyclic C 27 to C 35 triterpenes and are ubiquitously present in crude oil.…”

Section: Introductionmentioning

confidence: 99%

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Seasonal Trends of Atmospheric PAHs in Five Asian Megacities and Source Detection Using Suitable Biomarkers

Saha

Maharana

Kurumisawa

et al. 2017

Aerosol Air Qual. Res.

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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 (C 30 17α)/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 β isomers i.e., 17β21β (H)-C 30 hopane (C 30 17β) and 17β21β (H)-C 29 hopane (C 29 17β) 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.

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Section: Seasonal Variations In Pah Concentrationssupporting

confidence: 76%

Section: Spatial Pattern Of Pahssupporting

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Seasonal Trends of Atmospheric PAHs in Five Asian Megacities and Source Detection Using Suitable Biomarkers

Saha

Maharana

Kurumisawa

et al. 2017

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

show abstract

“…Quartz fiber filter (20.32 cm × 25.40 cm, Whatman, Mainstone, Shropshire, UK), used as collection substrates, was prebaked for 6 h at 450°C. The detailed descriptions of field sites and sampling processes can be found elsewhere (Yu et al, ).…”

Section: Methodsmentioning

confidence: 99%

Water Soluble Organic Nitrogen (WSON) in Ambient Fine Particles Over a Megacity in South China: Spatiotemporal Variations and Source Apportionment

Zhu

et al. 2017

JGR Atmospheres

Self Cite

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Organic nitrogen aerosols are complex mixtures and important compositions in ambient fine particulate matters (PM2.5), yet their sources and spatiotemporal patterns are not well understood particularly in regions influenced by intensive human activities. In this study, filter‐based ambient PM2.5 samples at four stations (one urban, two rural, plus one urban roadside) and PM samples from combustion sources (vehicle exhaust, ship emission, and biomass burning) were collected in the coastal megacity Guangzhou, south China, for determining water soluble organic nitrogen (WSON) along with other organic and inorganic species. The annual average WSON concentrations, as well as the ratios of WSON to water soluble total nitrogen, were all significantly higher at rural sites than urban sites. Average WSON concentrations at the four sites during the wet season were quite near each other, ranging from 0.41 to 0.49 μg/m3; however, they became 2 times higher at the rural sites than at the urban sites during the dry season. Five major sources for WSON were identified through positive matrix factorization analysis. Vehicle emission (29.3%), biomass burning (22.8%), and secondary formation (20.2%) were three dominant sources of WSON at the urban station, while vehicle emission (45.4%) and dust (28.6%) were two dominant sources at the urban roadside station. At the two rural sites biomass burning (51.1% and 34.1%, respectively) and secondary formation (17.8% and 30.5%, respectively) were dominant sources of WSON. Ship emission contributed 8–12% of WSON at the four sites. Natural vegetation seemed to have very minor contribution to WSON.

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Characteristic and Source of Atmospheric PM10- and PM2.5-bound PAHs in a Typical Metallurgic City Near Yangtze River in China

Zhang

Wang

Xue

et al. 2017

Bull Environ Contam Toxicol

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The characteristics of atmospheric PM- and PM-bound polycyclic aromatic hydrocarbons (PAHs) were investigated in Tongling city, China. Results showed that the total concentrations of PM- and PM-bound PAHs exhibited distinct seasonal and spatial variability. The metallurgic sites showed the highest PAH concentrations, which is mainly attributed to the metallurgic activities (mainly copper ore smelting) and coal combustion as the smelting fuel. The rural area showed the lowest concentrations, but exhibited significant increase from summer to autumn. This seasonal fluctuation is mainly caused by the biomass burning at the sites in the harvest season. The diagnostic ratio indicated that the main PAHs sources were vehicle exhausts, coal combustion and biomass burning. The total BaP equivalent concentration (BAP-TEQ) was found to be maximum at DGS site in winter, whereas it was minimum at BGC site in summer. Risk assessment indicates that residential exposure to PAHs in the industrial area, especially in the winter season, may pose a greater inhalation cancer risk than people living in living area and rural area.

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Attributing risk burden of PM2.5-bound polycyclic aromatic hydrocarbons to major emission sources: Case study in Guangzhou, south China

Cited by 47 publications

References 56 publications

Seasonal Trends of Atmospheric PAHs in Five Asian Megacities and Source Detection Using Suitable Biomarkers

Seasonal Trends of Atmospheric PAHs in Five Asian Megacities and Source Detection Using Suitable Biomarkers

Water Soluble Organic Nitrogen (WSON) in Ambient Fine Particles Over a Megacity in South China: Spatiotemporal Variations and Source Apportionment

Characteristic and Source of Atmospheric PM10- and PM2.5-bound PAHs in a Typical Metallurgic City Near Yangtze River in China

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