Assessment of airborne polycyclic aromatic hydrocarbons in a megacity of South China: Spatiotemporal variability, indoor-outdoor interplay and potential human health risk

Hu, Yaoping; Bao, Lian-Jun; Huang, Chaohua; Li, Shao-Meng; Liu, Peter; Zeng, Eddy Y.

doi:10.1016/j.envpol.2018.03.040

Cited by 29 publications

(17 citation statements)

References 43 publications

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“…The median I/O and P/O Chr ratios were 0.66 and 0.38, respectively (Table S10). The particle‐bound PAHs infiltration factors (I/O) were comparable with those reported in previous findings (Kraków, Poland: 0.54; Rome, Italy: 0.66; Guangzhou, China: 0.61) 25,26,33 . Higher I/O and P/O Chr ratios were observed in winter compared to summer.…”

Section: Resultssupporting

confidence: 88%

“…Residential indoor PAHs due to outdoor infiltration, indoor emission sources (e.g., fuel and cooking, smoking, and incense burning), and personal activities are critical variables that need to be considered in quantifying indoor and personal exposure to PAHs 24 . Previous studies have employed chrysene that has limited indoor sources as a reference compound to estimate ambient‐origin PAH exposures in indoor environments 25–27 25 with less attention directed toward different exposure categories.…”

Section: Introductionmentioning

confidence: 99%

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Characteristics and health risks of personal exposure to particle‐bound PAHs for Hong Kong adult residents: From ambient pollution to indoor exposure

Chen

Ward

et al. 2021

Indoor Air

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The World Health Organization (WHO) has indicated that 7.0 million global premature deaths are annually attributed to ambient and indoor air pollution, 1 and about 92% of the world population lives in areas with fine particle (PM 2.5 ) concentrations exceeding the WHO air quality guideline (annual mean: 10 μg/m 3 ). In addition, the adverse impacts of PM 2.5 components on human health-including toxic organic species (e.g., polycyclic aromatic hydrocarbons, PAHs) and transition metals-have also been well documented. 2,3 Epidemiological studies regarding air pollution and health effects are generally based on ambient concentrations measured from fixed regulatory stations. However, people spend a significant proportion (80%-90%) of their daily time in indoor microenvironments and up

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Section: Resultssupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Characteristics and health risks of personal exposure to particle‐bound PAHs for Hong Kong adult residents: From ambient pollution to indoor exposure

Chen

Ward

et al. 2021

Indoor Air

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“…Similarly, chrysene I/O ratios, calculated over the monitored period, were less than (in 75% of the cases; range: 0.06‐0.50) or equal to 1 (in 25% of the cases), indicating that the presence of indoor chrysene originated from mainly outdoor sources . In other words, these results corroborate a positive contribution of outdoor emission sources to indoor PAH levels.…”

Section: Resultssupporting

confidence: 55%

“…Similarly, chrysene I/O ratios, calculated over the monitored period, were less than (in 75% of the cases; range: 0.06-0.50) or equal to 1 (in 25% of the cases), indicating that the presence of indoor chrysene originated from mainly outdoor sources. 29 In other words, these results corroborate a positive contribution of outdoor emission sources to indoor PAH levels. According to the chrysene I/O ratios, and assuming that the chrysene infiltration factor acts as a proxy for other particle-bound PAHs, the HMWPAHs, MMWPAHs, and LMWPAHs originating from outdoor sources contributed 72%, 80%, and ~60%, respectively, to the indoor levels of the three PAH groups.…”

Section: Contribution Of Indoor and Outdoor Emission Sources To Thesupporting

confidence: 70%

Particle‐associated polycyclic aromatic hydrocarbons in a representative urban location (indoor‐outdoor) from South Europe: Assessment of potential sources and cancer risk to humans

Galán-Madruga¹,

Ubeda²,

Terroba³

et al. 2019

Indoor Air

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PM10‐bound polycyclic aromatic hydrocarbons (PAHs) levels were monitored at urban locations (outdoor/indoor) within the city of Madrid between May 2017 and April 2018. Fourteen PAH congeners were measured, potential emission sources were identified as were potential carcinogenic risks. The ΣPAHs averaged 0.577 and 0.186 ng/m3 in outdoor and indoor air, with a high linear correlation per individual mean PAH and month. The largest contributors to the ΣPAHs were the high‐molecular‐weight PAHs. Principal component analysis‐multiple linear regression results showed that emissions from diesel and vehicular processes explained 27% and 23% of the total variance of outdoor and indoor air, while combustion processes accounted for 30% and 25% in ambient and indoor air, respectively. During the cold season, biomass burning plus coal and wood combustion were additional sources of outdoor emissions. The heavy‐, medium‐ and light‐molecular‐weight PAH originating from outdoor sources accounted for 72%, 80%, and ~60% of the indoor levels of the three respective PAH groups. Average BaP concentration was 0.029 and 0.016 ng/m3 in outdoor and indoor air, respectively. Estimated BaPeq concentration averaged 0.072, 0.035, and 0.027 ng/m3 for outdoor, indoor, and indoor‐generated individual PAH concentrations, respectively. The estimated carcinogenic risk falls within the range of acceptable risk targeted by the US‐EPA.

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“…Among these, benzo[a]pyrene is recognized as carcinogenic to humans (Group 1), while cyclopenta[cd]pyrene, dibenz[a,h]anthracene and dibenzo[a,l]pyrene are probably carcinogenic to humans (Group 2A), and benz[j]aceanthrylene, benz[a]anthracene, benzo[b]fluoranthene, benzo[j]fluoranthene, benzo[k]fluoranthene, benzo[c]phenanthrene, chrysene, dibenzo[a,h]pyrene, dibenzo[a,i]pyrene, indeno [1,2,3-cd]pyrene and 5-methylchrysene are possibly carcinogenic to human (Group 2B). The harmful effects of PAHs depend on the route of exposure, and a mixture of two or more PAHs is likely to be more carcinogenic than an individual PAH [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Bioaccessibility of Polycyclic Aromatic Hydrocarbons (PAHs) in Grilled Meat: The Effects of Meat Doneness and Fat Content

Hamidi

Hajeb

Selamat

et al. 2022

IJERPH

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Exposure to polycyclic aromatic hydrocarbons (PAHs) through diet is gaining concern due to the risk it poses to human health. This study evaluated the bioaccessibility of PAHs contained in charcoal-grilled beef and chicken in different segments of the gastrointestinal tract (GIT) with regard to the degree of doneness and fat content of the meats. The levels of 15 PAHs in the grilled meat samples and bioaccessible fractions were determined using high-performance liquid chromatography (HPLC) equipped with PAH column, and UV and fluorescence detectors. Total PAHs were found in beef (30.73 ng/g) and chicken (70.93 ng/g) before its digestion, and different PAHs’ bioaccessibility were observed in the different segments of GIT, with the highest in the stomach followed by the small intestine, despite the relatively higher bioaccessibility of individual PAHs in grilled beef as compared to those in grilled chicken. Additionally, the PAHs’ bioaccessibility increased with the increase in the degree of doneness. Positive linear correlation was observed for the PAHs’ bioaccessibility and the fat contents of grilled meat. Overall, this study highlights the influence of meat doneness (cooking time) and fat contents on the bioaccessibility and bioaccumulation of PAHs.

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Assessment of airborne polycyclic aromatic hydrocarbons in a megacity of South China: Spatiotemporal variability, indoor-outdoor interplay and potential human health risk

Cited by 29 publications

References 43 publications

Characteristics and health risks of personal exposure to particle‐bound PAHs for Hong Kong adult residents: From ambient pollution to indoor exposure

Characteristics and health risks of personal exposure to particle‐bound PAHs for Hong Kong adult residents: From ambient pollution to indoor exposure

Particle‐associated polycyclic aromatic hydrocarbons in a representative urban location (indoor‐outdoor) from South Europe: Assessment of potential sources and cancer risk to humans

Bioaccessibility of Polycyclic Aromatic Hydrocarbons (PAHs) in Grilled Meat: The Effects of Meat Doneness and Fat Content

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