施用污泥的轻质土壤中多环芳烃（PAHs）含量的变化。
Changes in the content of polycyclic aromatic hydrocarbons (PAHs) in light soil fertilized with sewage sludge.
作者信息
Baran Stanisław, Oleszczuk Patryk
机构信息
Institute of Soil Science and Environmental Management, AU Lublin, Lublin, Poland.
出版信息
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2003 May;38(5):793-805. doi: 10.1081/ese-120018592.
In the present work the influence of soil fertilization with sewage sludge on the changes in the content of polycyclic aromatic hydrocarbons (PAH) in this soil was studied during a one-year field experiment. The experiment consisted of six plots to which sewage sludge was introduced at doses of 30 (1%), 75 (2.5%), 150 (5%), 300 (10%) and 600 ton/ha (20%) as calculated for dry mass. The PAH content at a depth of 0-20 and 20-40 cm was determined. With time, an increase in the PAH content in the lower soil layer (20-40 cm) and a gradual decrease of the PAH content in the 0-20 cm layer was observed. In most cases, a decrease by half in the PAH content in the soil fertilised with sewage sludge was observed.
在本研究中，通过为期一年的田间试验，研究了施用污水污泥对土壤中多环芳烃（PAH）含量变化的影响。试验包括六个地块，按照干重计算，分别以30吨/公顷（1%）、75吨/公顷（2.5%）、150吨/公顷（5%）、300吨/公顷（10%）和600吨/公顷（20%）的剂量施加污水污泥。测定了0 - 20厘米和20 - 40厘米深度处的PAH含量。随着时间的推移，观察到下层土壤（20 - 40厘米）中PAH含量增加，而0 - 20厘米土层中PAH含量逐渐降低。在大多数情况下，观察到施用污水污泥的土壤中PAH含量减少了一半。
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