本文關(guān)鍵詞： 城市園林 大氣污染 大氣顆粒物 二氧化硫 氮氧化物　出處：《西北林學(xué)院學(xué)報(bào)》2016年06期 　論文類型：期刊論文

【摘要】：研究了昆明市城市園林對(duì)大氣顆粒物的消減量和大氣中二氧化硫和氮氧化物濃度的年內(nèi)動(dòng)態(tài)變化及其兩者之間相關(guān)性。結(jié)果表明,昆明市大氣中二氧化硫和氮氧化物的濃度隨季節(jié)有明顯的變化,氮氧化物、二氧化硫的含量變化范圍分別為0.149~0.175mg·m-3與0.226~0.252mg·m-3,含量高低順序均為:春季冬季秋季夏季。植被對(duì)大氣顆粒物的消減量的高低順序?yàn)?春季冬季秋季夏季,與二氧化硫和氮氧化物濃度變化一致。大氣顆粒物對(duì)有毒有害氣體具有一定的吸附性,植被對(duì)大氣顆粒物的消減量與二氧化硫和氮氧化物的濃度具有負(fù)相關(guān)性,其中二氧化硫和氮氧化物的濃度與PM10極顯著負(fù)相關(guān),通過(guò)3次曲線模型對(duì)兩者之間的關(guān)系進(jìn)行擬合表明,植被對(duì)大氣顆粒物的滯留作用間接減少了大氣中二氧化硫和氮氧化物的含量,可為地方和區(qū)域環(huán)境監(jiān)測(cè)評(píng)價(jià)提供參考。
[Abstract]:The dynamic changes of atmospheric particulate matter and the concentration of sulfur dioxide and nitrogen oxide in the atmosphere and the correlation between them were studied. The concentration of sulfur dioxide and nitrogen oxide in the atmosphere of Kunming city changed obviously with the seasons. The ranges of sulfur dioxide content were 0.149 ~ 0.175 mg 路m ~ (-3) and 0.226 ~ 0.252 mg 路m ~ (-3), respectively. The order of content is spring, winter, autumn and summer, and the order of the reduction of atmospheric particulate matter by vegetation is spring, winter, autumn and summer. It is consistent with the change of sulfur dioxide and nitrogen oxide concentrations. Atmospheric particulates have a certain degree of absorption to toxic and harmful gases, and the reduction of atmospheric particulates by vegetation has a negative correlation with the concentration of sulfur dioxide and nitrogen oxides. The concentration of sulfur dioxide and nitrogen oxide was negatively correlated with PM10, and the relationship between them was fitted by cubic curve model. The retention effect of vegetation on atmospheric particulates can indirectly reduce the contents of sulfur dioxide and nitrogen oxides in the atmosphere and can be used as a reference for local and regional environmental monitoring and evaluation.
【作者單位】： 西南林業(yè)大學(xué)環(huán)境科學(xué)與工程學(xué)院;
【基金】：國(guó)家林業(yè)局林業(yè)公益性行業(yè)科研專項(xiàng)(201204101-10) 云南省高校優(yōu)勢(shì)特色重點(diǎn)學(xué)科(生態(tài)學(xué))建設(shè)項(xiàng)目(05000511311) 西南林業(yè)大學(xué)科技創(chuàng)新基金(C15116)
【分類號(hào)】：X513;X173
【正文快照】： 隨著工業(yè)的快速發(fā)展和城市建設(shè)的擴(kuò)大,工業(yè)廢棄物、建筑揚(yáng)塵和汽車尾氣排放量急劇上升,城市大氣污染是當(dāng)前人類面臨的日益嚴(yán)重和亟待解決的環(huán)境危機(jī)之一。大氣中的二氧化硫和氮氧化物與粉塵共存,可生成毒性更大的硝酸或硝酸鹽氣溶膠,形成酸雨[1-2]。一般按顆粒污染物的空氣動(dòng)，

本文編號(hào)：1449929