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        成都盾源除甲醛公司怎么樣

          中美空氣質量指數(AQI)對比研究及啟示高慶先1<!--[if !vml]--><!--[endif]-->, 成都盾源除甲醛公司怎么樣劉俊蓉1,2, 李文濤1,2, 高文康3摘要:對中美兩國空氣質量指數(AQI),特別是顆粒物分指數進行了對比研究,并利用2013年4月至12月期間,中國環境監測總站發布的環境空氣質量監測數據,開展了典型大氣污染過程的分析.

        成都盾源除甲醛公司怎么樣

          結果表明

          中國環境空氣質量標準的研究、制訂和發布起步雖晚但發展很快,所包含的污染物指標更全面,能夠客觀地反映出中國空氣污染的特征,也更貼近居民對空氣質量的切身感受;

          中美計算顆粒物小時AQI采用的方法不同,對比發現中國采用顆粒物24 h平均濃度限值代替1 h平均濃度限值的計算方法會將污染等級傾向于嚴重化;

          中國在計算顆粒物AQI時設定的顆粒物濃度限值存在一定的問題,導致AQI<200時,PM2.5/PM10的比值出現與實際不符的現象;

          對奧體中心監測點數據分析顯示,AQI成都盾源除甲醛公司怎么樣<50時,PM2.5/PM10比值小于0.5,且PM2.5/PM10的比值隨著污染指數等級的增大而增大.

          建議盡早修訂和調整顆粒物實時報的濃度限值和計算方法.

          關鍵詞: 空氣質量指數 分級濃度限值 環境空氣質量標準 PM2.5 PM10

          Comparative Analysis and Inspiration of Air Quality Index Between China and America

          GAO Qing-xian1<!--[if !vml]--><!--[endif]-->, LIU Jun-rong1,2, LI Wen-tao1,2, GAO Wen-kang3

          Abstract:

          Research on the differences of air quality index (AQI) especially AQI

          of particulate matters between China and America and analysis of hourly

          monitored readings from April to December in 2013 released by

          Environmental Monitoring Station of China indicated that: ① Although

          China lagged behind America in formulating and publishing of AQI

          standards, the AQI standards published in 2012 in China covered more

          pollutant indexes than before and could objectively reflect the

          characteristics of air pollution in China, and were more close to the

          residens's feeling about air quality. ②The methods adopted for

          calculation of particulate matter hourly AQI were different in China and

          America, and the comparison revealed that the calculation method

          adopted by China using the 24 h average concentration breakpoint of

          particulate matters to replace the 1 h average concentration breakpoint

          would enhance the severity of the pollution level. ③ The breakpoint of

          PM2.5-24 h in China was less rigorous than that in America when

          AQI<200, which led to the inconsistence between the ratio of

          PM2.5/PM10 and the real situation in China. ④Analysis on the monitoring

          readings from station of Beijing Olympic Sports Center showed that when

          AQI<50, the ratio of PM2.5/PM10 was less than 0.5 and increased with

          the increasing of AQI. Correction and adjustment of particulate matter

          real-time calculation method and breakpoints of PM2.5 and PM10 were

          suggested in China.

          Key words: air quality index (AQI) breakpoints ambient air quality standards PM2.5 PM10

          環境空氣質量標準的建立,成都盾源除甲醛公司怎么樣可以為環境空氣質量管理、保護人體健康、維護生態環境安全,促進人與社會、自然和諧可持續發展發揮積極作用[1,

          2]. 20世紀70年代,美國最先構建了污染標準指數(pollution standards

          index,PSI),將多個污染物的信息整合在一個指標體系中,通過發布污染標準指數,指導人們的日常生活行為[3].

          隨后,世界各國基于各自的空氣質量狀況陸續建立了適合本國特色的空氣質量指數發布系統,如中國的API (air pollution index

          )和AQI(air quality index),美國的PSI和AQI,英國的每日空氣質量指數(daily air quality

          index,DAQI),澳大利亞的區域污染指數(regional pollution

          index,RPI)及澳大利亞新南威爾士州的區域環境空氣質量指數(regional air quality index,RAQI)等[4].

          目前,成都盾源除甲醛公司怎么樣空氣污染成為中國政府部門和普通老百姓關注的熱點,很多學者對中國環境空氣質量評價進行了相關研究,并提出了目前存在的問題和改進建議[5,

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