本文選題：農(nóng)藥場(chǎng)地 + 修復(fù)過程��； 參考：《南京農(nóng)業(yè)大學(xué)學(xué)報(bào)》2017年03期

【摘要】：[目的]研究農(nóng)藥污染場(chǎng)地修復(fù)施工過程中大氣中污染物的含量變化,揭示其主要影響因子和變化規(guī)律,為農(nóng)藥類污染場(chǎng)地修復(fù)過程中的大氣二次污染防治提供科學(xué)依據(jù)。[方法]以典型農(nóng)藥化工類退役場(chǎng)地土壤修復(fù)工程為依托,基于對(duì)場(chǎng)地土壤污染和修復(fù)施工工程的綜合分析,在整個(gè)施工期間,對(duì)場(chǎng)地大氣進(jìn)行采樣檢測(cè),采用相關(guān)分析和回歸分析等統(tǒng)計(jì)學(xué)方法,對(duì)場(chǎng)地大氣中氣態(tài)污染物的組成和含量變化及其影響因素等進(jìn)行了研究。[結(jié)果]場(chǎng)地大氣中主要?dú)鈶B(tài)污染物包括苯乙烯、甲苯、乙苯、二氟二氯甲烷、氯仿、1,4-二氯苯、1,3-二氯苯、氯代甲苯、環(huán)己烷、乙酸乙酯、2-丁酮和二硫化碳等揮發(fā)性有機(jī)污染物(VOCs)。場(chǎng)地大氣氣態(tài)污染物含量在修復(fù)后期(2014年6月至2015年1月)明顯高于修復(fù)前期(2014年1—6月)。[結(jié)論]修復(fù)施工期內(nèi)污染土壤的開挖量是影響污染物濃度變化的關(guān)鍵因子,階段開挖土方量對(duì)污染物濃度變化的影響尤為顯著,開挖土方量越大,污染物濃度越高;氣溫和風(fēng)速也是影響污染物濃度變化的主要因素。氣溫越高,風(fēng)速越小,污染物濃度越高。
[Abstract]:[objective] to study the changes of atmospheric pollutants in the process of remediation of pesticide contaminated sites, and to reveal its main influencing factors and changing rules, so as to provide a scientific basis for the prevention and control of secondary atmospheric pollution in the remediation of pesticide contaminated sites. [methods] based on the comprehensive analysis of soil pollution and remediation engineering of typical pesticide and chemical retired sites, the site atmosphere was sampled and detected during the whole construction period. By means of correlation analysis and regression analysis, the composition and content of gaseous pollutants in the atmosphere and their influencing factors were studied. [results] the main gaseous pollutants in the atmosphere of the site included styrene, toluene, ethylbenzene, dichloromethane, chloroform 1, 4-dichlorobenzene, chlorotoluene, cyclohexane, ethyl acetate 2-butanone and carbon disulfide, and so on. The content of gaseous pollutants in the site was significantly higher in the later stage of restoration (June 2014 to January 2015) than in the early period of restoration (January-June 2014). [conclusion] the excavation amount of contaminated soil is the key factor affecting the change of pollutant concentration during the period of remediation, and the effect of excavation earthwork on the change of pollutant concentration is particularly significant. The larger the earthwork quantity is, the higher the pollutant concentration is. Air temperature and wind speed are also the main factors affecting the concentration of pollutants. The higher the temperature, the smaller the wind speed and the higher the pollutant concentration.
【作者單位】： 南京農(nóng)業(yè)大學(xué)資源與環(huán)境科學(xué)學(xué)院;環(huán)境保護(hù)部南京環(huán)境科學(xué)研究所;中國(guó)科學(xué)院植物研究所;
【基金】：環(huán)保公益性行業(yè)科研專項(xiàng)(201509034)
【分類號(hào)】：X592

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