Integrative risk assessment method via combining geostatistical analysis, random forest, and receptor models for potentially toxic elements in selenium-rich soil
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作者:
Wu, Hao
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Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R ChinaNorthwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
Wu, Hao
[1
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Cheng, Nan
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Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R ChinaNorthwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
Cheng, Nan
[1
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Chen, Ping
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Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R ChinaNorthwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
Chen, Ping
[1
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Zhou, Fei
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Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R ChinaNorthwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
Zhou, Fei
[1
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Fan, Yao
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Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R ChinaNorthwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
Fan, Yao
[1
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Qi, Mingxing
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Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R ChinaNorthwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
Qi, Mingxing
[1
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Shi, Jingyi
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Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R ChinaNorthwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
Shi, Jingyi
[1
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Zhang, Zhimin
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Shaanxi Hydrogeolog Engn Geosci & Environm Geosci, Yangling, Peoples R ChinaNorthwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
Zhang, Zhimin
[2
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Ren, Rui
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Shaanxi Hydrogeolog Engn Geosci & Environm Geosci, Yangling, Peoples R ChinaNorthwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
Ren, Rui
[2
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Wang, Cheng
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Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R ChinaNorthwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
Wang, Cheng
[1
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Liang, Dongli
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机构:
Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
Minist Agr, Key Lab Plant Nutr & Agrienvironm Northwest China, Yangling 712100, Shaanxi, Peoples R ChinaNorthwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
Liang, Dongli
[1
,3
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机构:
[1] Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
[2] Shaanxi Hydrogeolog Engn Geosci & Environm Geosci, Yangling, Peoples R China
[3] Minist Agr, Key Lab Plant Nutr & Agrienvironm Northwest China, Yangling 712100, Shaanxi, Peoples R China
Revealing the spatial features and source of associated potentially toxic elements (PTEs) is crucial for the safe use of selenium (Se)-rich soils. An integrative risk assessment (GRRRA) approach based on geostatistical analysis (GA), random forest (RF), and receptor models (RMs) was first established to investigate the spatial distribution, sources, and potential ecological risks (PER) of PTEs in 982 soils from Ziyang City, a typical natural Se-rich area in China. RF combined with multiple RMs supported the source apportionment derived from the RMs and provided accurate results for source identification. Then, quantified source contributions were introduced into the risk assessment. Eighty-three percent of the samples contain Cd at a high PER level in local Se-rich soils. GA based on spatial interpolation and spatial autocorrelation showed that soil PTEs have distinct spatial characteristics, and high values are primarily distributed in this research areas. Absolute principal component score/ multiple line regression (APCS/MLR) is more suitable than positive matrix factorization (PMF) for source apportionment in this study. RF combined with RMs more accurately and scientifically extracted four sources of soil PTEs: parent material (48.91%), mining (17.93%), agriculture (8.54%), and atmospheric deposition (24.63%). Monte Carlo simulation (MCS) demonstrates a 47.73% probability of a non-negligible risk (RI > 150) caused by parent material and 3.6% from industrial sources, respectively. Parent material (64.20%, RI = 229.56) and mining (16.49%, RI = 58.96) sources contribute to the highest PER of PTEs. In conclusion, the GRRRA method can comprehensively analyze the distribution and sources of soil PTEs and effectively quantify the source contribution to PER, thus providing the theoretical foundation for the secure utilization of Se-rich soils and environmental management and decision making.
机构:
Changan Univ, Sch Water & Environm, Xian, Peoples R China
Changan Univ, Key Lab Subsurface Hydrol & Ecol Effect Arid Reg, Minist Educ, Xian, Peoples R China
Changan Univ, Key Lab Ecohydrol & Water Secur Arid Semiarid Reg, Minist Water Resources, Xian, Peoples R ChinaChangan Univ, Sch Water & Environm, Xian, Peoples R China
Zhang, Liyuan
Zhu, Yuxi
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Changan Univ, Sch Water & Environm, Xian, Peoples R ChinaChangan Univ, Sch Water & Environm, Xian, Peoples R China
Zhu, Yuxi
Zhang, Yanan
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机构:
Changan Univ, Sch Water & Environm, Xian, Peoples R ChinaChangan Univ, Sch Water & Environm, Xian, Peoples R China
Zhang, Yanan
Zhong, Jiahao
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机构:
Changan Univ, Sch Water & Environm, Xian, Peoples R ChinaChangan Univ, Sch Water & Environm, Xian, Peoples R China
Zhong, Jiahao
Li, Jiangwei
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机构:
Changan Univ, Sch Water & Environm, Xian, Peoples R ChinaChangan Univ, Sch Water & Environm, Xian, Peoples R China
Li, Jiangwei
Yang, Shitong
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机构:
Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn Xian, Xian, Peoples R ChinaChangan Univ, Sch Water & Environm, Xian, Peoples R China
Yang, Shitong
Ta, Weiyuan
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机构:
Shaanxi Environm Invest & Assessment Ctr, Xian, Peoples R ChinaChangan Univ, Sch Water & Environm, Xian, Peoples R China
Ta, Weiyuan
Zhang, Yue
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机构:
Changan Univ, Sch Architecture, Xian, Peoples R ChinaChangan Univ, Sch Water & Environm, Xian, Peoples R China
机构:
Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing,100101, China
University of Chinese Academy of Sciences, Beijing,100049, ChinaInstitute of Geographic Sciences and Natural Resources Research, CAS, Beijing,100101, China
Guo, Guanghui
Li, Kai
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机构:
Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing,100101, China
University of Chinese Academy of Sciences, Beijing,100049, ChinaInstitute of Geographic Sciences and Natural Resources Research, CAS, Beijing,100101, China
Li, Kai
Zhang, Degang
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机构:
Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing,100101, China
University of Chinese Academy of Sciences, Beijing,100049, ChinaInstitute of Geographic Sciences and Natural Resources Research, CAS, Beijing,100101, China
Zhang, Degang
Lei, Mei
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机构:
Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing,100101, China
University of Chinese Academy of Sciences, Beijing,100049, ChinaInstitute of Geographic Sciences and Natural Resources Research, CAS, Beijing,100101, China
机构:
Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, Japan
Jahangirnagar Univ, Dept Environm Sci, Dhaka 1342, BangladeshKyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, Japan
Bhuiyan, Mohammad Amir Hossain
Karmaker, Shamal Chandra
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机构:
Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, Japan
Kyushu Univ, Mech Engn Dept, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, Japan
Univ Dhaka, Dept Stat, Dhaka 1000, BangladeshKyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, Japan
Karmaker, Shamal Chandra
Saha, Bidyut Baran
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机构:
Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, Japan
Kyushu Univ, Mech Engn Dept, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, JapanKyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, Japan