1. 【行业新闻】《开放源扬尘颗粒物采样技术规范(试行)》意见稿发布
      信息来源: 华恒 | [ 2019-04-25] 点击量: 223


        In order to implement the Environmental Protection Law and the Air Pollution Prevention and Control Law and promote the standardization,standardization and professionalization of the research on source apportionment of ambient air particulate matter,the Ministry of Ecology and Environment has organized and formulated the National Environmental Protection Standard of the Technical Specification for Sampling Dust Particulate Matter from Open Sources(Trial Implementation).At present,the standard compilation unit has completed the draft of the standard for consultation.
        Nowadays,dust source is one of the important sources of air particulate matter in urban environment in China.It can be divided into soil dust,road dust,construction dust,stack dust and secondary dust.To collect dust samples scientifically and normatively and to construct the composition spectrum of dust sources is directly related to the accuracy of the source apportionment results of ambient air particulate matter and the comparability between different cities.Due to the lack of relevant standards for dust sampling,the sampling methods are not uniform,which affects the scientificity and comparability of source analysis monitoring results.Therefore,it is necessary to carry out relevant research and establish a standard method of dust sampling for reference in source analysis.
        At present,China has published the technical route of source apportionment,the technical guide of source apportionment,the technical guide of source apportionment monitoring and a series of related monitoring standards for particulate matter components,and has initially established the technical system of source apportionment of particulate matter.However,the technical system of source analysis in China still lacks relevant standards and specifications for sampling of pollution sources(fixed source,mobile source and open source).
        This standard stipulates the technical requirements of sampling points,field sampling methods,technical specifications of sampling equipment and quality assurance of sampling for open source particulate matter.It is suitable for sampling open source particulate matter in source apportionment of ambient air particulate matter.
        The Standard Compilation Group is composed of relevant technical personnel of China Environmental Monitoring Station,Nankai University,Xi'an Environmental Monitoring Station,Tianjin Ecological Environment Monitoring Center and Fuzhou Environmental Monitoring Center Station.
        本标准引用的文件主要有《HJ/T 166土壤环境监测技术规范》、《HJ/T 393防治城市扬尘污染技术规范》、关于印发《环境空气颗粒物来源解析监测技术方法指南(试行)》的通知(环办函[2014]1132号)、关于发布《大气颗粒物来源解析技术指南(试行)》的通知(环发[2013]92号)、《空气和废气监测分析方法》(第四版增补版)。
        The main documents cited in this standard are"Technical Specification for Soil Environmental Monitoring of HJ/T 166","Technical Specification for Prevention and Control of Urban Dust Pollution by HJ/T 393","Circular on Issuance of Technical Guidelines for Source Analysis and Monitoring of Environmental Air Particulates(Trial)"(UNEP Letter[2014]1132),and Circular on Issuance of Technical Guidelines for Source Analysis of Atmospheric Particulates(Trial).(Circular[2013]92)."Air and Exhaust Gas Monitoring and Analysis Method"(Fourth Edition Supplementary Edition).
        Among them,Samplers select representative bare ground as sampling points according to the soil and meteorological characteristics of the area.Generally,the suburbs in the east,south,West and north directions are selected 10-20 km away from the urban built-up area.If the urban dominant wind direction is different from the four directions mentioned above,at least three points will be added to the upper wind direction of the dominant wind direction.At least three sampling points are arranged in each direction,evenly distributed,and the distance between the points is not less than 500 meters.There are no other significant anthropogenic pollution sources(such as factories,mines,villages,commercial and residential areas,traffic roads,construction sites,etc.)around the sampling sites(within 500 meters).