摘要
采用高效液相色谱法(HPLC)测定了山西某焦化废弃地土壤US.EPA优先控制的16种多环芳烃(PAHs)总量,分析了PAHs的垂直分布特征,并对土壤污染风险进行了评价。结果表明,该焦化废弃地土壤表层(0～20cm)PAHs总量为86.7～1258.6μg·kg-1(干重),中层(20～60cm)AHs总量为ND～689.5μg·kg-1,下层(60～100cm)为ND～300.6μg·kg-1,与加拿大保护环境和人体健康的土壤质量指导值相比,多数点位土壤PAHs超标,且表现出随深度的增加含量减少的趋势,风险评估结果表明该焦化废弃地土壤PAHs风险较小。
Concentrations of 16 polycyclic aromatic hydrocarbons （PAHs） listed for prior control by US EPA in 10 soil samples from an abandoned coking factory in Shanxi Province were detected with a high performance liquid chromatog-raphy （HPLC）, and vertical distribution and risk of PAHs were discussed. The results showed that the total PAHs concentration was 86.7-1258.6 （dry weight）, ND-689.5 and ND-300.6 μg·kg^-1 in surface （0-20 cm）, middle （20-60 cm） and lower （60-100 cm） layer, respectively. Compared to the Soil Quality Guidelines for the Protection of Environmental and Human Health in Canada, the total PAHs concentrations in most sites were higher, and PAHs were accumulated in the topsoil and decreased with depth. Risk assessment indicated that PAHs in the soil did not seri- ously threaten the environment.
出处
《山西农业大学学报（自然科学版）》
CAS
2012年第6期567-570,共4页
Journal of Shanxi Agricultural University(Natural Science Edition)
基金
山西省青年科技研究基金(2008021036-4)
山西农业大学科技创新基金(2004046)
关键词
焦化废弃地
土壤
多环芳烃
含量
风险
Abandoned coking factory
Soil
PAHs
Concentration
Risk
