Climate Change Data Portal
DOI | 10.1016/j.atmosenv.2016.07.005 |
Modeling the impact of solid noise barriers on near road air quality | |
Venkatram, Akula1; Isakov, Vlad2; Des'; hmukh, Parikshit3; Baldauf, Richard4,5 | |
发表日期 | 2016-09-01 |
ISSN | 1352-2310 |
卷号 | 141页码:462-469 |
英文摘要 | Studies based on field measurements, wind tunnel experiments, and controlled tracer gas releases indicate that solid, roadside noise barriers can lead to reductions in downwind near-road air pollutant concentrations. A tracer gas study showed that a solid barrier reduced pollutant concentrations as much as 80% next to the barrier relative to an open area under unstable meteorological conditions, which corresponds to typical daytime conditions when residents living or children going to school near roadways are most likely to be exposed to traffic emissions. The data from this tracer gas study and a wind tunnel simulation were used to develop a model to describe dispersion of traffic emissions near a highway in the presence of a solid noise barrier. The model is used to interpret real-world data collected during a field study conducted in a complex urban environment next to a large highway in Phoenix, Arizona, USA. We show that the analysis of the data with the model yields useful information on the emission factors and the mitigation impact of the barrier on near-road air quality. The estimated emission factors for the four species, ultrafine particles, CO, NO2, and black carbon, are consistent with data cited in the literature. The results suggest that the model accounted for reductions in pollutant concentrations from a 4.5 m high noise barrier, ranging from 40% next to the barrier to 10% at 300 m from the barrier. Published by Elsevier Ltd. |
英文关键词 | Air quality;Dispersion model;Noise barrier;Field data;Emission factors |
语种 | 英语 |
WOS记录号 | WOS:000381950900043 |
来源期刊 | ATMOSPHERIC ENVIRONMENT
![]() |
来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/58956 |
作者单位 | 1.Univ Calif Riverside, Riverside, CA USA; 2.US EPA, Atmospher Modeling & Anal Div, Off Res & Dev, Natl Exposure Res Lab, Res Triangle Pk, NC USA; 3.Jacobs Technol, Durham, NC USA; 4.US EPA, Off Res & Dev, Natl Risk Management Res Lab, Res Triangle Pk, NC USA; 5.US EPA, Off Transportat & Air Qual, Natl Vehicle & Fuels Emiss Lab, Ann Arbor, MI USA |
推荐引用方式 GB/T 7714 | Venkatram, Akula,Isakov, Vlad,Des',et al. Modeling the impact of solid noise barriers on near road air quality[J]. 美国环保署,2016,141:462-469. |
APA | Venkatram, Akula,Isakov, Vlad,Des',hmukh, Parikshit,&Baldauf, Richard.(2016).Modeling the impact of solid noise barriers on near road air quality.ATMOSPHERIC ENVIRONMENT,141,462-469. |
MLA | Venkatram, Akula,et al."Modeling the impact of solid noise barriers on near road air quality".ATMOSPHERIC ENVIRONMENT 141(2016):462-469. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。