Global distribution of oxygenated polycyclic aromatic hydrocarbons in mineral topsoils

doi:10.1002/jeq2.20224

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Global distribution of oxygenated polycyclic aromatic hydrocarbons in mineral topsoils
	Wilcke, Wolfgang 1; Bigalke, Moritz 2; Wei, Chong 3,4; Han, Yongming 4,5; Musa Bandowe, Benjamin A.6
通讯作者	Wilcke, Wolfgang(wolfgang.wilcke@kit.edu)
	2021-05-06
发表期刊	JOURNAL OF ENVIRONMENTAL QUALITY
ISSN	0047-2425
页码	13
摘要	Hazardous oxygenated polycyclic aromatic hydrocarbons (OPAHs) originate from combustion (primary sources) or postemission conversion of polycyclic aromatic hydrocarbons (PAHs) (secondary sources). We evaluated the global distribution of up to 15 OPAHs in 195 mineral topsoils from 33 study sites (covering 52 degrees N-47 degrees S, 71 degrees W-118 degrees E) to identify indications of primary or secondary sources of OPAHs. The sums of the (frequently measured 7 and 15) OPAH concentrations correlated with those of the sigma 16EPA-PAHs. The relationship of the sigma 16EPA-PAH concentrations with the sigma 7OPAH/sigma 16EPA-PAH concentration ratios (a measure of the variable OPAH sources) could be described by a power function with a negative exponent <1, leveling off at a sigma 16EPA-PAH concentration of approximately 400 ng g(-1). We suggest that below this value, secondary sources contributed more to the OPAH burden in soil than above this value, where primary sources dominated the OPAH mixture. This was supported by a negative correlation of the sigma 16EPA-PAH concentrations with the contribution of the more readily biologically produced highly polar OPAHs (log octanol-water partition coefficient <3) to the sigma 7OPAH concentrations. We identified mean annual precipitation (Spearman rho = .33, p < .001, n = 143) and clay concentrations (rho = .55, p < .001, n = 33) as important drivers of the sigma 7OPAH/sigma 16EPA-PAH concentration ratios. Our results indicate that at low PAH contamination levels, secondary sources contribute considerably and to a variable extent to total OPAH concentrations, whereas at sigma 16EPA-PAH contamination levels >400 ng g(-1), there was a nearly constant sigma 7OPAH/sigma 16EPA-PAH ratio (0.08 +/- 0.005 [SE], n = 80) determined by their combustion sources.
DOI	10.1002/jeq2.20224
收录类别	SCI ; SCI
语种	英语
资助项目	Swiss National Science Foundation[SNF 200021_131938/1] ; Swiss National Science Foundation[SNF 200021E_131195/1] ; Deutsche Forschungsgemeinschaft[DFG WI 1601/2-1] ; Deutsche Forschungsgemeinschaft[DFG WI 1601/2-2] ; Deutsche Forschungsgemeinschaft[DFG WI 1601/2-3] ; National Natural Science Foundation of China[NSFC 41625015] ; P.R.I.M.E. Fellowship from the German Academic Exchange Service (DAAD)
WOS研究方向	Environmental Sciences & Ecology
项目资助者	Swiss National Science Foundation ; Deutsche Forschungsgemeinschaft ; National Natural Science Foundation of China ; P.R.I.M.E. Fellowship from the German Academic Exchange Service (DAAD)
WOS类目	Environmental Sciences
WOS记录号	WOS:000647402300001
出版者	WILEY
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/16340
专题	黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Wilcke, Wolfgang
作者单位	1.Karlsruhe Inst Technol, Inst Geog & Geoecol, Reinhard Baumeister Pl 1, D-76131 Karlsruhe, Germany 2.Univ Bern, Inst Geog, Hallerstr 12, CH-3012 Bern, Switzerland 3.Chinese Acad Sci, Shanghai Adv Res Inst, Key Lab Low Carbon Convers Sci & Engn, Shanghai Carbon Data Res Ctr, Shanghai 201210, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 5.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Peoples R China 6.Max Planck Inst Chem, Dept Multiphase Chem, Hahn Meitner Weg 1, D-55128 Mainz, Germany
推荐引用方式 GB/T 7714	Wilcke, Wolfgang,Bigalke, Moritz,Wei, Chong,et al. Global distribution of oxygenated polycyclic aromatic hydrocarbons in mineral topsoils[J]. JOURNAL OF ENVIRONMENTAL QUALITY,2021:13.
APA	Wilcke, Wolfgang,Bigalke, Moritz,Wei, Chong,Han, Yongming,&Musa Bandowe, Benjamin A..(2021).Global distribution of oxygenated polycyclic aromatic hydrocarbons in mineral topsoils.JOURNAL OF ENVIRONMENTAL QUALITY,13.
MLA	Wilcke, Wolfgang,et al."Global distribution of oxygenated polycyclic aromatic hydrocarbons in mineral topsoils".JOURNAL OF ENVIRONMENTAL QUALITY (2021):13.