Distribution and transport of PAHs in soil profiles of different water irrigation areas in Beijing, China

Ai-fang, Jin; He, Jiangtao; Chen, Sunuan; Huang, Guoxin

doi:10.1039/c3em00623a

Cited by 25 publications

(17 citation statements)

References 27 publications

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“…There was no significant difference in total PAHs concentrations between wastewater and groundwater, explaining the similar profiles of congener between wastewater and groundwater irrigated soils. In the present study, the high PAHs concentrations in surface soils were derived from wastewater, similar as previous studies reported by Jin 6 and Wang 52 . As for PAHs composition, the 2-ring PAHs were the most predominant congener, accounting for 45.24% and 31.88% of the total PAHs in wastewater and groundwater irrigated soils, respectively.…”

Section: Resultssupporting

confidence: 92%

Uptake and translocation of polycyclic aromatic hydrocarbons (PAHs) and heavy metals by maize from soil irrigated with wastewater

Zhang

Yao

et al. 2017

Sci Rep

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By investigating the uptake of 16 priority polycyclic aromatic hydrocarbons (PAHs) and five heavy metals from soils to maize at the farmlands with industrial wastewater irrigation, this study revealed the effects of heavy metals on PAHs uptake in terms of co-contamination. The results of 15 investigated soils showed medium contamination level and the vertical PAHs distribution in soils indicated that 2–3 rings PAHs with low octanol-water partition coefficient (log Kow < 4.5) were easier to transport in soils, causing a great potential risk immigrating to the groundwater. The 3-ring PAHs were most likely to be taken up by maize roots whereas 2- and 4–6 ring PAHs had the lower likelihood. The translocation of PAHs in maize tissues has positive relationship with log Kow less than 4.5, while negatively correlated otherwise. Redundancy analysis indicated the unexpected results that, except for soil PAHs concentration, the PAHs translocation by maize was reduced by Pb uptake, but not significantly affected by soil organic matters, pH or the other four heavy metals (Cr, Cu, Ni and Zn). This study for the first time provides the restricted factors of PAHs and heavy metal acropetal translocation by maize when they co-exist at wastewater irrigation sites.

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Section: Resultssupporting

confidence: 92%

Uptake and translocation of polycyclic aromatic hydrocarbons (PAHs) and heavy metals by maize from soil irrigated with wastewater

Zhang

Yao

et al. 2017

Sci Rep

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“…However, in the research of Jin et al . (), Nap showed a phenomenon similar to this study; the Nap content in the topsoil was close to that in the deep soil, and even increased in some deep layers.…”

Section: Resultssupporting

confidence: 88%

“…This is not consistent with the observation in some literature that the surface soil of 0-30 or 40 cm are more likely to adsorb PAHs than deeper soils (Bu et al, 2009;Xiao et al, 2008). However, in the research of Jin et al (2014), Nap showed a phenomenon similar to this study; the Nap content in the topsoil was close to that in the deep soil, and even increased in some deep layers.…”

Section: Distribution Characteristics Of Pahs In the Vadose Zone Profcontrasting

confidence: 99%

“…Considerable differences of total PAH concentrations were observed in surface soils irrigated with water of different qualities. The mean values of total PAH concentrations in soils irrigated with sewage, reclaimed water and groundwater were 726, 207 and 42.8 μg kg‾¹, respectively (Jin et al, ). It was sewage irrigation and reclaimed water irrigation that introduced different amounts of PAHs into the soil.…”

Section: Introductionmentioning

confidence: 99%

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Variation of Polycyclic Aromatic Hydrocarbon (Pah) Contents in the Vadose Zone and Groundwater Under Long‐term Irrigation Using Reclaimed Water

et al. 2019

Irrigation and Drainage

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Using reclaimed water for agricultural irrigation is one of the most important measures for alleviating the global water crisis. The polycyclic aromatic hydrocarbon (PAH) vertical distribution characteristics in the vadose zone under long‐term reclaimed water irrigation and the corresponding impact on groundwater were studied by conducting a simulation experiment in the south‐east suburb of Beijing. The simulation experiment designed two different long‐term reclaimed water irrigation years, which were 98 and 236 years, respectively. The results showed that both treatments had a total PAH contents close to the background values (245–253 μg kg‾¹) and the long‐term reclaimed water irrigation did not result in a considerable PAH accumulation in soil profiles, which was supposed to be largely associated with the low PAH content of reclaimed water. The sources of PAH contamination in the vadose zone were mainly the combustion of fossil fuels and biomass by analysis of PAH isomer ratios. The total PAH contents in groundwater after percolation through the reclaimed water irrigation area was no more than 0.16 μg l‾¹ and the PAH removal rate of the vadose zone reached 97.7%. We stated that the vadose zone in the study area has excellent pollution prevention properties for PAHs under long‐term high‐quality reclaimed water irrigation. © 2019 John Wiley & Sons, Ltd.

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“…In China, many predecessors have carried out significant research work on the status of soil PAHs pollution, finding that the pollution status and pollution sources in different regions have obvious differences. However, most of the investigations regarding PAH contamination have usually focused on small scales, including industrial and mining areas, garden green land, and wastewater irrigation sites [13,[37][38][39]. At a national scale, researchers have usually adopted meta-analysis.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Spatial Distribution of Soil PAHs and their Relationship with Anthropogenic Activities at a National Scale

Zeng

Ren

et al. 2019

IJERPH

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Soil polycyclic aromatic hydrocarbon (PAH) pollution is a major concern due to its negative impact on soil quality around the world. In China, accurate data on soil PAHs and information on the relationship with anthropogenic activities are limited. In this study, about 30,800 samples from 1833 soil sample sites were reviewed from 306 published reports to build a soil PAHs database. Based on the data obtained, the results demonstrated that 24.11% of surface soils in China are heavily contaminated. Meanwhile, the concentration of soil PAHs varied, in the order of independent mining and industrial areas (IMIA) > urban areas > suburban areas > rural areas, and the spatial distribution in China demonstrated a descending trend from north to south. Moreover, the characteristic ratio and PCA-MLR (principal component analysis-multiple linear regression) analysis demonstrated that coal combustion and vehicular exhaust emissions were the main sources of soil PAH pollution in China. On the other hand, provincial total Σ16PAHs in surface soil were significantly correlated with the per square kilometer GDP (gross domestic product) of industrial land, the per capita GDP, as well as the production and consumption of energy. These results indicate that anthropogenic factors have greatly affected the levels of soil PAHs in China. This study improves our understanding on the status and sources of soil PAH contamination in China, thereby facilitating the implementation of strategies of prevention, control, and remediation of soils.

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Distribution and transport of PAHs in soil profiles of different water irrigation areas in Beijing, China

Cited by 25 publications

References 27 publications

Uptake and translocation of polycyclic aromatic hydrocarbons (PAHs) and heavy metals by maize from soil irrigated with wastewater

Uptake and translocation of polycyclic aromatic hydrocarbons (PAHs) and heavy metals by maize from soil irrigated with wastewater

Variation of Polycyclic Aromatic Hydrocarbon (Pah) Contents in the Vadose Zone and Groundwater Under Long‐term Irrigation Using Reclaimed Water

Assessing the Spatial Distribution of Soil PAHs and their Relationship with Anthropogenic Activities at a National Scale

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