PMID- 31450195
OWN - NLM
STAT- MEDLINE
DCOM- 20191015
LR  - 20191015
IS  - 1095-8630 (Electronic)
IS  - 0301-4797 (Linking)
VI  - 249
DP  - 2019 Nov 1
TI  - Urban-rural gradients of polycyclic aromatic hydrocarbons in soils at a regional 
      scale: Quantification and prediction.
PG  - 109406
LID - S0301-4797(19)31124-7 [pii]
LID - 10.1016/j.jenvman.2019.109406 [doi]
AB  - The quantitative study of urban-rural gradients for persistent organic pollutants 
      (POPs) is extremely important to understand the behavior of POPs as well as for 
      ecological risk assessment and management. In this study, a practical urban-rural 
      gradient model (URGM) was developed using atmospheric point source diffusion 
      combined with a fugacity approach to test potential mathematical relationships 
      among urban and rural soils. The mean value of polycyclic aromatic hydrocarbons 
      (PAHs) for urban soils (0-2-km sites) was 570.80 ng/g, and was approximately 3.5 
      times higher than rural soils (30-50 km sites). Significant linear correlations 
      were found between the amounts of PAHs in the surface soil and the city 
      population and between the soil concentration and artificial surface area. 
      Urban-rural PAH concentrations were simulated by the URGM and calibrated by city 
      population and land-cover data, with average relative errors of 12.84%. The 
      results showed that the URGM was suitable for simulating urban-rural PAH 
      concentrations at a regional scale. The combustion of fossil fuels, biomass, and 
      coal was the main source of soil PAHs in the study area, and the characteristic 
      ratios of PAHs indicated a transition trend from pyrogenic to petrogenic sources 
      along the urban-rural transects. This study thus provides a combined method for 
      quantifying urban-rural gradients of PAHs and can thereby promote quantitative 
      research on coupling among land cover, socio-economic data, and POP 
      concentrations.
CI  - Copyright (c) 2019 Elsevier Ltd. All rights reserved.
FAU - Song, Shuai
AU  - Song S
AD  - State Key Laboratory of Urban and Regional Ecology, Research Center for 
      Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; 
      University of Chinese Academy of Sciences, Beijing, 100049, China.
FAU - Lu, Yonglong
AU  - Lu Y
AD  - State Key Laboratory of Urban and Regional Ecology, Research Center for 
      Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; 
      University of Chinese Academy of Sciences, Beijing, 100049, China. Electronic 
      address: yllu@rcees.ac.cn.
FAU - Wang, Tieyu
AU  - Wang T
AD  - State Key Laboratory of Urban and Regional Ecology, Research Center for 
      Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
FAU - Zhang, Sheng
AU  - Zhang S
AD  - School of Environmental & Natural Resources, Renmin University of China, Beijing, 
      100872, China.
FAU - Sweetman, Andrew
AU  - Sweetman A
AD  - Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, United 
      Kingdom.
FAU - Baninla, Yvette
AU  - Baninla Y
AD  - State Key Laboratory of Urban and Regional Ecology, Research Center for 
      Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; 
      University of Chinese Academy of Sciences, Beijing, 100049, China.
FAU - Shi, Yajuan
AU  - Shi Y
AD  - State Key Laboratory of Urban and Regional Ecology, Research Center for 
      Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
FAU - Liu, Zhaoyang
AU  - Liu Z
AD  - State Key Laboratory of Urban and Regional Ecology, Research Center for 
      Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; 
      University of Chinese Academy of Sciences, Beijing, 100049, China.
FAU - Meng, Jing
AU  - Meng J
AD  - State Key Laboratory of Urban and Regional Ecology, Research Center for 
      Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
FAU - Geng, Jing
AU  - Geng J
AD  - University of Sanya, Sanya, 572000, China.
LA  - eng
PT  - Journal Article
DEP - 20190823
PL  - England
TA  - J Environ Manage
JT  - Journal of environmental management
JID - 0401664
RN  - 0 (Polycyclic Aromatic Hydrocarbons)
RN  - 0 (Soil)
RN  - 0 (Soil Pollutants)
SB  - IM
MH  - China
MH  - Cities
MH  - Environmental Monitoring
MH  - *Polycyclic Aromatic Hydrocarbons
MH  - Soil
MH  - *Soil Pollutants
OTO - NOTNLM
OT  - Land use
OT  - PAHs
OT  - Regional scale
OT  - Spatial prediction
OT  - Urban-rural gradient
EDAT- 2019/08/27 06:00
MHDA- 2019/10/16 06:00
CRDT- 2019/08/27 06:00
PHST- 2018/12/10 00:00 [received]
PHST- 2019/08/12 00:00 [revised]
PHST- 2019/08/13 00:00 [accepted]
PHST- 2019/08/27 06:00 [pubmed]
PHST- 2019/10/16 06:00 [medline]
PHST- 2019/08/27 06:00 [entrez]
AID - S0301-4797(19)31124-7 [pii]
AID - 10.1016/j.jenvman.2019.109406 [doi]
PST - ppublish
SO  - J Environ Manage. 2019 Nov 1;249:109406. doi: 10.1016/j.jenvman.2019.109406. Epub 
      2019 Aug 23.