Atmospheric fine particles PM2.5 is part of the atmosphere, due to its small particle size, and can provide carrier for toxic substances and had a great influence on the environment and human health.Based on the collection of PM2.5, formation mechanism, harm, source, and the main methods and standards, analysis of PM2.5 control countermeasures.At home and abroad are summarized the research status of fine particles PM2.5, mainly around the physical and chemical characteristics of fine particles PM2.5 and sources analysis, health effect, parsing, and its effect on visibility, etc are discussed, and the research trends are prospected.
文摘:根据收集的形式美信机制,PM2.5伤害,源,主要的监测方法和标准,分析了PM2.5控制和预防对策。关键词:PM2.5、浓度、标准、灰霾,administion
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大气细颗粒物PM2.5是大气的一部分，由于其粒径小以及可为毒性物质提供载体，对环境和人体的健康产生很大的影响。本文根据收集的PM2.5的形成机理、危害、来源，以及主要监测方法及标准，分析PM2.5控制防治对策。总结了国内外有关细颗粒物PM2．5的研究现状，主要围绕细颗粒物PM2.5的物理化学特征与分析方法、健康效应、来源解析、及其对能见度的影响等方面进行了论述，并对其研究动向进行了展望。
The fine particles of atmosphere - PM2.5 is part of the atmosphere. Due to the fact that its smallness of diameter, it can be the carrier for toxic matter and have a great impact on environment and health. The paper analyzes the measures of control and prevention according to the forming mechanism, harms and source of collected PM 2.5 as well as main detection methods and standards. The author also summarizes the status quo of research on fine particles PM2 from home and abroad. The paper mainly revolves the physical and chemical properties of PM2.5 particles and analyzing methods, health effects, analysis of source and the influence fo visibility and so on to elaborate the fine particle and predicts the direction for future studies.
关键词：PM2.5，浓度，标准，灰霾，治理
Key words: PM2.5, density, standard, haze, management
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