广州某地块污染场地土壤调查评价及修复方案探析

Soil Investigation Results of and Proposed Restoration Plans for a Polluted Land in Guangzhou

城市土壤是城市生态环境系统的有机组成部分,影响到城市生态环境质量和人体健康。随着城市快速发展,造成城市土壤污染、侵蚀、酸化和硬化以及土壤生物和植被退化等一系列较为严重的城市环境问题。本文通过对广州某商业地块污染场地土壤、地下水的调查和采样分析测试,查明污染场地主要污染物类型和特性及起火原因,对其进行综合环境质量评价,为污染场地适宜性风险评估及污染场地治理修复提供科学依据。调查结果表明,研究区土壤和水中的部分指标含量较高,环境质量受到影响。针对主要污染物磷的特性,建议采用化学修复方案措施与对策,使污染场地达到无害化处理目的,为政府相关部门决策提供参考依据。

Urban soil is a very critical component of urban ecological system. It is closely related to the quality of urban ecological environment and human health. With the rapid development of urbanization, soil pollution, erosion, acidifcation, solidifcation and degradation of plant covers and soil organisms have become a series of serious environment issues. Through various studies of a polluted commercial land in Guangzhou, this report provides a scientifc foundation for quality assessments and restoration proposals. The studies include analytically sampling the soil and underground water, characterizing the main pollutants, investigating possible causes of blazes in the polluted land. A comprehensive evaluation of environmental quality has also been carried out. The survey results indicate that some high concentrations of soil samples and water samples are infuenced by environment. According to the characteristics of phosphorus in main pollutants, chemical repair method is recommended. And fnally, this report provides relevant government agents with a scientifc reference on restoring the polluted soil and eliminating hazardous effects.