Mass balance-based regression modeling of PAHs accumulation in urban soils, role of urban development

Peng, Chi; Wang, Meie; Chen, Weiping; Chang, Andrew C.

doi:10.1016/j.envpol.2014.11.025

Cited by 18 publications

(7 citation statements)

References 41 publications

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“…Because soil organic matter (SOM) has a great capacity to adsorb PAHs in the environment5, they are prone to deposition on soil surfaces and can persist in soil for decades67. Knowledge of the distribution patterns of PAHs and of their composition in soil is useful in identifying the sources of PAHs, in risk assessment, and in studying the pollution history of a city89.…”

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confidence: 99%

Spatial Analysis of PAHs in Soils along an Urban–Suburban–Rural Gradient: scale effect, distribution patterns, diffusion and influencing factors

Peng

Wang

Chen

2016

Sci Rep

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Spatial statistical methods including Cokriging interpolation, Morans I analysis, and geographically weighted regression (GWR) were used for studying the spatial characteristics of polycyclic aromatic hydrocarbon (PAH) accumulation in urban, suburban, and rural soils of Beijing. The concentrations of PAHs decreased spatially as the level of urbanization decreased. Generally, PAHs in soil showed two spatial patterns on the regional scale: (1) regional baseline depositions with a radius of 16.5 km related to the level of urbanization and (2) isolated pockets of soil contaminated with PAHs were found up to around 3.5 km from industrial point sources. In the urban areas, soil PAHs showed high spatial heterogeneity on the block scale, which was probably related to vegetation cover, land use, and physical soil disturbance. The distribution of total PAHs in urban blocks was unrelated to the indicators of the intensity of anthropogenic activity, namely population density, light intensity at night, and road density, but was significantly related to the same indicators in the suburban and rural areas. The moving averages of molecular ratios suggested that PAHs in the suburban and rural soils were a mix of local emissions and diffusion from urban areas.

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confidence: 99%

Spatial Analysis of PAHs in Soils along an Urban–Suburban–Rural Gradient: scale effect, distribution patterns, diffusion and influencing factors

Peng

Wang

Chen

2016

Sci Rep

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“…According to the US Environmental Protection Agency, the concentration of 16 PAH in water should be less than 0.2 µg/L, and according to the World Health Organization (WHO) the concentration of PAH in water should be less than 0.02 µg/L. However, the concentration of PAH in industrial wastewater in China is as high as 1 mg/mL [1]. The lipophilic characteristic of PAH makes it easy to deposit in lipid-rich tissues and organs, affecting human health.…”

Section: Discussionmentioning

confidence: 99%

“…Volcanic eruption, forest fires and biosynthesis are the main natural sources of PAH, and organochlorine manufacturing, paper bleaching processes, waste incineration, metal manufacturing, fossil fuels and wood burning are the main artificial sources, including human activities such as indoor heating, smoking, career in PAH-exposure industries, cooking and food contact to polycyclic aromatic hydrocarbons [1]. The most common kind of polycyclic aromatic hydrocarbons including benzo(a)pyrene (BaP), dimethyl-benzene -pyreneanthracene (DMBA), benzo [e] pyrene (BeP), benzo(a)anthracene (BaA), dibenzo(a,h)anthracene (DBA), benzo(k)fluoranthene (BkF), chrysene (CRH), acenaphthene (ANA), acenaphthylene (ANY), and anthracene (ANT).…”

Section: Introductionmentioning

confidence: 99%

Polycyclic Aromatic Hydrocarbons Cause Follicle Atresia and Apoptosis in Mouse Ovarian Follicles Cultured in Vitro that can be Reduced with the Activator of PI3K/Akt Pathway, 740Y-P

Sheng¹,

Ji²,

Ma³

et al. 2018

Crit Care Obst & Gyne

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Objective: To explore the effect of the environmental toxicants polycyclic aromatic hydrocarbons (PAH) on the ovary.Methods: Female mice of child-bearing age were randomized to a control group and three PAH exposure groups at a dose of 0.1 μg/mL, 1 μg/mL or 10 μg/mL. The ovary was removed using aseptic technique, cultured in vitro for 10 days, and HE stained to observe structural change by light microscopy. Ovarian granulosa cell apoptosis was detected by immunohistochemistry, and the number of ovarian follicles undergoing atresia was counted. Western blot was carried out to detect the expression of apoptosisrelated proteins (Caspase3,Caspase9, bax and bcl-2). Then we detected if these damages can be prevented by 740Y-P, an activator of PI3K/Akt pathway. Results:The number of ovarian follicles in the three PAH groups was significantly lower than that in the control group (P<0.05). Compared with the control group, the expression of apoptotic protein Caspase-3, Caspases9 and Bax was increased, and the expression of Bcl-2 was decreased in PAH groups. PI3K/Akt pathway prevented the apoptosis of the ovary. Conclusion:Exposure of female mice of reproductive age to PAH induced ovarian granulosa cell apoptosis that can be prevented with the activator of PI3K/Akt pathway 740Y-P.

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“…Qian and Follett (2002) described the changes of soil organic matter over a 45 year period based on the building age of the sampling golf courses using a quadratic with plateau model. Peng et al (2015) introduced a mass balance-based nonlinear regression model to simulate the historical and future changes of polycyclic aromatic hydrocarbons in urban soil. The time series data of pollutant concentrations were obtained using a sampling strategy of trading space for time.…”

Section: Introductionmentioning

confidence: 99%

Mass balance-based regression modeling of Cd and Zn accumulation in urban soils of Beijing

Peng

Wang

Chen

et al. 2017

Journal of Environmental Sciences

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Accumulation of heavy metals in urban soil can pose adverse impacts on public health and terrestrial ecosystems. We developed a mass balance-based regression model to simulate the heavy metal accumulation in urban soils as a function of time and to explore connections between metal concentration and urbanization processes. Concentrations of Cd and Zn in 68 residential soil samples in the urban area of Beijing were used. The background concentrations, the loss rates and the input fluxes of Cd and Zn in urban soils of Beijing during the last three decades were estimated using a regression of the time series of accumulations of the metals. Based on the regression estimates, we simulated the general trends of Cd and Zn accumulation in the soils from 1978 to 2078. The concentrations of Cd and Zn in urban soil generally increased with the population growth, vehicle use and coal consumption. The mean concentrations of Cd and Zn in urban soil of Beijing would increase by 3 fold over the next 70years for the current development scenario. The mass balance-based regression approach, which is able to reconstruct the history data of urban soil pollution, provides fundamental information for urban planning and environmental management.

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Mass balance-based regression modeling of PAHs accumulation in urban soils, role of urban development

Cited by 18 publications

References 41 publications

Spatial Analysis of PAHs in Soils along an Urban–Suburban–Rural Gradient: scale effect, distribution patterns, diffusion and influencing factors

Spatial Analysis of PAHs in Soils along an Urban–Suburban–Rural Gradient: scale effect, distribution patterns, diffusion and influencing factors

Polycyclic Aromatic Hydrocarbons Cause Follicle Atresia and Apoptosis in Mouse Ovarian Follicles Cultured in Vitro that can be Reduced with the Activator of PI3K/Akt Pathway, 740Y-P

Mass balance-based regression modeling of Cd and Zn accumulation in urban soils of Beijing

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