Modeling the impact of sea-spray on particle concentrations in a coastal city
| Autor: | Rebecca Jane Barthelmie, Francis S. Binkowski, L. Delle Monache, Justin T. Schoof, Sara C. Pryor, Roland B. Stull |
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| Rok vydání: | 2008 |
| Předmět: |
Environmental Engineering
Population Air pollution Wind Atmospheric sciences medicine.disease_cause Nitric Acid Ozone parasitic diseases Environmental monitoring medicine Sulfur Dioxide Environmental Chemistry Seawater Cities Particle Size education Waste Management and Disposal Air quality index Hydrology Air Pollutants education.field_of_study Nitrates British Columbia Sulfates Sea spray Pollution Aerosol Quaternary Ammonium Compounds Models Chemical Particle Particle size Environmental Monitoring |
| Zdroj: | Science of The Total Environment. 391:132-142 |
| ISSN: | 0048-9697 |
| Popis: | With the worlds population becoming increasingly focused on coastal locations there is a need to better understand the interactions between anthropogenic emissions and marine atmospheres. Herein an atmospheric chemistry-transport model is used to assess the impacts of sea-spray chemistry on the particle composition in and downwind of a coastal city--Vancouver, British Columbia. It is shown that the model can reasonably represent the average features of the gas phase and particle climate relative to in situ measurements. It is further demonstrated that reactions in/on sea-spray affect the entire particle ensemble and particularly the size distribution of particle nitrate, but that the importance of these heterogeneous reactions is critically dependent on both the initial vertical profile of sea spray and the sea-spray source functions. The results emphasize the need for improved understanding of sea spray production and dispersion and further that model analyses of air quality in coastal cities conducted without inclusion of sea-spray interactions may yield mis-leading results in terms of emission sensitivities of particle composition and concentrations. |
| Databáze: | OpenAIRE |
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