基于互联网大数据的成都餐饮源细颗粒物排放空间分配研究

发布时间：2018-01-20 08:46

本文关键词： 餐饮业源清单 POI 大数据空间分配　出处：《环境科学学报》2017年12期 　论文类型：期刊论文

【摘要】：餐饮过程排放的废气正成为大城市大气污染的重要来源之一.根据成都市2013年排放清单更新的研究成果,综合运用本地化的餐饮排放因子、排放活动水平的调查成果和成都市统计年鉴的统计数据等信息,对成都市餐饮源的PM_(2.5)排放总量进行了估算,其结果为4740 t·a~(-1).为了对区域的餐饮废气排放进行空间分配,本文抓取了互联网兴趣点POI信息.通过这些信息,对成都市的社会餐饮、学校食堂餐饮和家庭餐饮的空间来源进行了表征,对成都市生活源中餐饮污染物排放的空间分布规律进行了探索,并提出了新的餐饮源高分辨空间分配方法.结果表明,基于POI空间分配的2013年成都餐饮源单位面积年排放强度均值为0.29 t·km~(-2)·a~(-1),主城区均值为3.47 t·km~(-2)·a~(-1),全市的排放量分布区间为0~35.7 t·km~(-2)·a~(-1).互联网POI信息可以作为研究城市餐饮源空间分布的重要数据来源,在实际应用上更适于表征社会餐饮点源污染.
[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.
【作者单位】：四川大学建筑与环境学院;
【分类号】：X513;X799
【正文快照】： 1引言(Introduction)近年来区域空气污染已经成为中国多数城市面临的严峻问题.很多颗粒物源解析的研究指出,餐饮烹饪过程中产生的大气污染物是室外空气污染的主要来源之一.Cabada等(2002)发现商业餐饮的排放导致在美国部分地区的细颗粒浓度远远超出EPA的要求.同时,餐饮活动中

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