Urban Air Pollution and Traffic Emissions: New prospects from an analysis at high temporal resolution

城市空气污染和交通排放：高时间分辨率分析的新前景

基本信息

批准号：
323266686
负责人：
Professor Dr. Otto Klemm
金额：
--
依托单位：
Institut für Landschaftsökologie
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2017
资助国家：
德国
起止时间：
2016-12-31 至 2020-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/323266686?language=en
关键词：
Urban Air Pollution Traffic Emissions

项目摘要

This project wants to apply trace gas and particle measurements with very high temporal resolution at an urban traffic site in order to develop our understanding of pollution dynamics and emissions from traffic. Although the level of understanding about emissions and air pollutant concentrations is rather well developed, novel techniques shall enable us to analyze emission ratios NO / NO2 / NOx of single vehicles and cohorts of vehicles, the impact and interaction of these NOx emissions with the O3 chemistry, the emission ratios NH3 / CO2 and NOx / CO2 with very high temporal resolution, and the emissions of aerosol particles in a very wide spectrum of sizes (few nm up to at least 1 µm diameters) with 10 Hz resolution. New prospects will be opened on the understanding of aerosol dynamics directly after the emission from various types of vehicles under real-world conditions. The proposed concepts are in line with other recent concepts of urban air pollution and emission analysis such as multi-sensor approaches, mobile platform measurements, and eddy covariance. We propose basic research which will eventually and, in combination with other techniques and modelling activities, help to understand the urban landscape, which is influenced by a multitude of processes of high temporal and spatial variabilities. Bottom-up approaches to understand urban air pollution will become feasible. The core experiment will be a 18-month curbside measurement. Two intensive operation periods (IOPs) will add further aspects of spatial representativeness and more detailed information of the chemical composition of particles in their size spectra.

该项目希望在城市交通站点上以非常高的临时分辨率应用微量的气体和颗粒测量值，以发展我们对交通污染动态和排放的理解。尽管对排放和空气污染物浓度的理解水平相当良好，但新颖的技术应使我们能够分析单个车辆和车辆队列的NO / NO2 / NOX NO / NO2 / NOX，这些NOX与O3化学的影响和相互作用与O3化学的影响和相互作用与O3化学，发射率NH3 / CO2 / CO2和NOX / CO2以及EMISS的范围以及EMISS范围以及EMISS的范围以及EMISS的范围，以及EMISS的范围，以及EMISS的范围，以及EMISS的范围，以及EMISSROUSE和EMISSROUMES，以及EMISSROUME和EMISSROUME，以及EMISSROUSE，以及EMISS的范围，并且尺寸（少数nm至至少1 µm直径），分辨率为10 Hz。在现实世界中各种类型的车辆发射后，将直接了解对气溶胶动态的理解。拟议的概念符合其他最近的城市空气污染和排放分析的概念，例如多传感器方法，移动平台测量和涡流协方差。我们提出了基础研究，最终将与其他技术和建模活动结合在一起，有助于理解城市景观，这受到高临时和空间变化的多种过程的影响。了解城市空气污染的自下而上的方法将变得可行。核心实验将是一个18个月的曲线测量。两个密集的操作周期（IOP）将增加空间表示的进一步方面，并在其大小光谱中更详细的颗粒化学组成信息。