Fate estimation of polycyclic aromatic hydrocarbons in soils in a rapid   urbanization region, Shenzhen of China

doi:10.1039/c0em00470g

CORC > 北京大学 > 城市与环境学院

	Fate estimation of polycyclic aromatic hydrocarbons in soils in a rapid urbanization region, Shenzhen of China
	Ni, Hong-Gang ; Qin, Pei-Heng ; Cao, Shan-Ping ; Zeng, Hui
刊名	环境监测杂志
	2011
关键词	PERSISTENT ORGANIC POLLUTANTS PEARL RIVER DELTA AGRICULTURAL SOILS AIR EXCHANGE SOUTH CHINA SEDIMENTS PAHS
DOI	10.1039/c0em00470g
英文摘要	Our previous study indicated that the current level of polycyclic aromatic hydrocarbons (PAHs) in Shenzhen soil is in the low-end of world soil PAH pollution. In this study, the fate of PAHs in the soil of Shenzhen was investigated. The mass inventories of Sigma(27)PAHs and Sigma(15)PAHs (defined as the sum of the 27 or 15 PAH compounds sought) in topsoil of Shenzhen were similar to 204 and similar to 152 metric tons, respectively. Fate estimation of Sigma(15)PAHs shows that air-soil gaseous exchange is the primary environmental process with similar to 10 076 kg/year diffusing from soil to air. Rain washing (similar to 1131 kg/year from air to soil) is the most important input pathway followed by wet (similar to 17 kg/year) and dry deposition (similar to 8 kg/year) to soils in Shenzhen. The transport of Sigma(15)PAHs by soil erosion is a crucial loss process for soil PAHs in Shenzhen (1918 kg/year for water runoff and 657 kg/year for solid runoff from soil). Moreover, degradation is not ignorable at present (95 kg/year). Comparison of inventory and residue (defined as Sigma(15)PAHs left in topsoils after all environmental loss processes) suggested that input and loss of high molecular weight PAHs for Shenzhen's soil reached apparent equilibrium. Soil PAH pollution in Shenzhen will stay in a quasi-steady state for a long period and the natural environmental processes can not significantly reduce the pollution.; Chemistry, Analytical; Environmental Sciences; SCI(E); PubMed; 6; ARTICLE; 2; 313-318; 13
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/195374]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Ni, Hong-Gang,Qin, Pei-Heng,Cao, Shan-Ping,et al. Fate estimation of polycyclic aromatic hydrocarbons in soils in a rapid urbanization region, Shenzhen of China[J]. 环境监测杂志,2011.
APA	Ni, Hong-Gang,Qin, Pei-Heng,Cao, Shan-Ping,&Zeng, Hui.(2011).Fate estimation of polycyclic aromatic hydrocarbons in soils in a rapid urbanization region, Shenzhen of China.环境监测杂志.
MLA	Ni, Hong-Gang,et al."Fate estimation of polycyclic aromatic hydrocarbons in soils in a rapid urbanization region, Shenzhen of China".环境监测杂志 (2011).