摘要
道路交通污染已成为城市的主要污染源,临街社区最容易受到交通污染的影响。利用无人机对城市临街小区内空气污染物的三维分布进行实地监测,归纳其三维分布规律,通过分析不同交通条件,不同建成环境以及不同气象条件等情景,解释污染物在城市临街小区三维分布成因。发现大型柴油车对于道路污染源排放强度的影响极大,12%的大型柴油车可以贡献55%的PM1排放。同时根据道路两侧的用地情况不同,在90m高度以下,PM1的水平影响范围为100~350m,90~300m高度内,PM1的水平影响范围可达500m以上。
Road traffic pollution has become a major source of pollution in cities,and street-facing communities are the most vulnerable to traffic pollution.This paper aims to use unmanned aerial vehicle(UAV)to monitor the three-dimensional distribution of air pollutants in urban street-facing communities,summarize their three-dimensional distribution rules,and explain the causes of three-dimensional distribution of pollutants in urban street-facing communities by analyzing different traffic conditions,different built environments and different meteorological conditions.This paper finds that large diesel vehicles have a great impact on the emission intensity of road pollution sources,and 12% of large diesel vehicles can contribute 55% of PM1 emissions.At the same time,according to the different land use conditions on both sides of the road,below 90m altitude,the horizontal impact range of PM1 is 100m to 350m,and within the height of 90m to 300m,the horizontal influence range of PM1 can reach more than 500m.
作者
李超
何红弟
彭仲仁
LI Chao;HE Hongdi;PENG Zhongren(School of Transportation Engineering,Chang’an University,Xi’an 710064,China;School of Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;International Center for Adaptation Planning and Design(iAdapt),University of Florida,Gainsville 32608,USA)
出处
《同济大学学报(自然科学版)》
北大核心
2025年第6期934-943,共10页
Journal of Tongji University:Natural Science
基金
国家自然科学基金(12072195)。
关键词
城市临街环境
无人机
交通污染
时空分布
urban near-road environment
unmanned aerial vehicle
traffic pollution
spatiotemporal distribution
