重点行业企业用地调查中的难点及工作建议

重点行业企业用地调查是落实我国《土壤污染防治行动计划》重要基础性工作。此调查工作目前已开展基础信息采集和初步采样调查两个阶段,信息采集工作为初步采样调查提供地块名单,两者承上启下。调查工作存在的难点主要为地块历史生产活动不明确,导致调查时重点区域及特征污染物的遗漏;调查人员专业水平不均一,对于生产工艺较复杂的地块,难免造成中间产物识别和样品采集不全面、不准确,这直接关系到调查结果的准确性和合理性;还有各地实验室测试水平不一,导致测试数据存在偏差等。本文从重点行业企业用地调查的实际工作出发,分析了调查工作中遇到的问题和难点,总结了本次调查工作经验,为日后开展建设用地土壤污染状况调查工作提供一定技术支撑,并就日常监管工作提出了一些建议和对策。

Difficulties and Suggestions in Land Use Investigation of Key Industry Enterprises

Land use survey of key industries and enterprises is an important basic work to implement the "Soil Pollution Prevention and Control Action Plan" in China. At present, this survey has carried out two stages, they are basic information collection and preliminary sampling survey. The information collection work provides the list of plots for the preliminary sampling survey, and the two stages link the preceding with the following. The main difficulties in the survey are that the historical production activities of the plot are not clear, which leads to the omission of key areas and characteristic pollutants during the survey. The professional level of the investigators is uneven. For the blocks with complex production technology, it is inevitable to cause incomplete and inaccurate identification of intermediate products and sample collection, which is directly related to the accuracy and rationality of the survey results. There are also different levels of laboratory testing, resulting in deviation of test data. Based on actual work of land use survey of enterprises in key industries, problems and difficulties encountered in the survey work have been analyzed, and experiences of this survey have been summarized. It will provide some technical support for the future investigation of soil pollution on construction land. Some suggestions and countermeasures for the daily supervision work have been and put forward.