Data/hora: 01/06/2024 07:36:02

Provedor de dados: | 31
País: | United States
Título: | Source-Receptor Relationships for Ozone and Fine Particulates in the Eastern United States
Autores: | Shih,   Jhih-Shyang; Krupnick,   Alan J.; Bergin,   Michelle S.; Russell,   Armistead G.
Data: | 2005-10-26
Ano: | 2004
Palavras-chave: | Source-receptor; Ozone; Particulate matter; Sensitivity analysis; Air quality simulation; National Ambient Air Quality Standards; Environmental Economics and Policy; Q2; Q25.
Resumo: | A key question in developing effective mitigation strategies for ozone and particulate matter is identifying which source regions contribute to concentrations in receptor regions. Using a direct approach with a regional, multiscale three-dimensional model, we derive multiple source-receptor matrices (S-Rs) to show inter- and intrastate impacts of emissions on both ozone and PM2.5 over the eastern United States. Our results show that local (in-state) emissions generally account for about 23% of both local ozone concentrations and PM2.5 concentrations, while neighboring states contribute much of the rest. The relative impact of each state on others varies dramatically between episodes. In reducing fine particulate concentrations, we find that reducing SO2 emissions can be 10 times as effective as reducing NOx emissions. SO2 reductions can lead to some increase in nitrates, but this is relatively small. NOx reductions, however, lead to both ozone reductions and some reduction in nitrate and sulfate particulate matter.
Tipo: | Working or Discussion Paper
Idioma: | Inglês

Identificador:

18696

http://purl.umn.edu/10572

Editor: | AgEcon Search

Relação:

Resources for the Future&gt;Discussion Papers

Discussion Paper 04-25

Formato:

29

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