城市土地置换过程中土壤有机污染物健康影响度评价

城市化过程中日益严峻的土壤污染已成为制约城市土地可持续开发利用的主要因素，而有机物已成为土壤中重要的污染物. 在我国目前缺乏相关环境质量标准的背景下，选择某区域土地置换开发为案例，尝试采用人体健康影响度评价法，对城市土地置换中土壤有机污染物可能给未来入住人群健康带来的潜在危害进行了分析与定量评价，识别出该区域土壤有机污染物以2,4-二硝基酚、五氯酚以及PAHs为主. 需要指出的是，参与评价的有机污染物仅为被检出有机污染物总量的一部分，因此评价结果中的健康影响度可能较实际数值偏低. 随着环境管理工作的深入进行，在城市土地置换过程中应逐步加强环境健康风险评价的研究.  

Study on the Healthy Severity Assessment of Soil Organic Pollution during Urban Land Replacement

Soil pollution has become one of the hinder factors of urban land sustainable development during city urbanization, while organic pollutants have beenmore important soil pollutants. Under the background of the lack of environmental quality standard at present in China, an urban land functional replacement site was used as a case to analyze and assess quantitatively the potential hazard to future residents brought by soil organic pollutants during land replacement, adopting the method of healthy severity assessment. It was identified that soil environment of this area was mainly polluted by 2,4-dinitrophenolate, the pentachlorophenol as well as PAHs. Due to other organic pollutants not included in calculation, the results of health influence drawn in this study are less than the actual environmental pollution degree. With the development of environmental management, the Health Risk Assessment (HRA) should be strengthened during urban land functional replacement.