基于互聯(lián)網(wǎng)大數(shù)據(jù)的成都餐飲源細(xì)顆粒物排放空間分配研究
發(fā)布時(shí)間:2018-01-20 08:46
本文關(guān)鍵詞: 餐飲業(yè) 源清單 POI 大數(shù)據(jù) 空間分配 出處:《環(huán)境科學(xué)學(xué)報(bào)》2017年12期 論文類型:期刊論文
【摘要】:餐飲過程排放的廢氣正成為大城市大氣污染的重要來源之一.根據(jù)成都市2013年排放清單更新的研究成果,綜合運(yùn)用本地化的餐飲排放因子、排放活動(dòng)水平的調(diào)查成果和成都市統(tǒng)計(jì)年鑒的統(tǒng)計(jì)數(shù)據(jù)等信息,對成都市餐飲源的PM_(2.5)排放總量進(jìn)行了估算,其結(jié)果為4740 t·a~(-1).為了對區(qū)域的餐飲廢氣排放進(jìn)行空間分配,本文抓取了互聯(lián)網(wǎng)興趣點(diǎn)POI信息.通過這些信息,對成都市的社會(huì)餐飲、學(xué)校食堂餐飲和家庭餐飲的空間來源進(jìn)行了表征,對成都市生活源中餐飲污染物排放的空間分布規(guī)律進(jìn)行了探索,并提出了新的餐飲源高分辨空間分配方法.結(jié)果表明,基于POI空間分配的2013年成都餐飲源單位面積年排放強(qiáng)度均值為0.29 t·km~(-2)·a~(-1),主城區(qū)均值為3.47 t·km~(-2)·a~(-1),全市的排放量分布區(qū)間為0~35.7 t·km~(-2)·a~(-1).互聯(lián)網(wǎng)POI信息可以作為研究城市餐飲源空間分布的重要數(shù)據(jù)來源,在實(shí)際應(yīng)用上更適于表征社會(huì)餐飲點(diǎn)源污染.
[Abstract]:The exhaust gas from catering process is becoming one of the most important sources of air pollution in big cities. According to the research results of the update of Chengdu's emission inventory in 2013, the localization of catering emission factors is used synthetically. The survey results of emission activity level and the statistical data of Chengdu Statistical Yearbook were used to estimate the total amount of PMSP 2.5) emissions from food and beverage sources in Chengdu. The result is 4 740 t 路a ~ (-1) ~ (-1). In order to distribute the exhaust gas of catering in the region, the POI information of Internet interest point is captured in this paper. The spatial sources of food and beverage in Chengdu, school dining hall and family dining were characterized, and the spatial distribution rule of pollutants emission from food and beverage in Chengdu was explored. A new high-resolution space allocation method for food and beverage source is proposed. In 2013, the average annual emission intensity per unit area of food and beverage source in Chengdu was 0.29 t 路km ~ (-2) 路a ~ (-1)) based on POI space allocation. The mean value of the main urban area is 3.47 t 路km ~ (-2) 路a ~ (-1)). The emission distribution range of the city is 35.7 t 路km ~ (-2) 路a ~ (-1) ~ (-1). The POI information can be used as an important data source to study the spatial distribution of urban food and beverage sources. In the practical application, it is more suitable to characterize the point source pollution of social food and beverage.
【作者單位】: 四川大學(xué)建筑與環(huán)境學(xué)院;
【分類號】:X513;X799
【正文快照】: 1引言(Introduction)近年來區(qū)域空氣污染已經(jīng)成為中國多數(shù)城市面臨的嚴(yán)峻問題.很多顆粒物源解析的研究指出,餐飲烹飪過程中產(chǎn)生的大氣污染物是室外空氣污染的主要來源之一.Cabada等(2002)發(fā)現(xiàn)商業(yè)餐飲的排放導(dǎo)致在美國部分地區(qū)的細(xì)顆粒濃度遠(yuǎn)遠(yuǎn)超出EPA的要求.同時(shí),餐飲活動(dòng)中
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