Exploring relationships between outdoor air particulate-associated polycyclic aromatic hydrocarbon and PM2.5: A case study of benzo(a)pyrene in California metropolitan regions
| Autor: | Agnes B. Lobscheid, Thomas E. McKone, Daniel A. Vallero |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
chemistry.chemical_classification
Atmospheric Science Persistent organic pollutant Environmental engineering Air pollution Polycyclic aromatic hydrocarbon Particulates medicine.disease_cause Aerosol chemistry.chemical_compound chemistry Criteria air contaminants Environmental chemistry medicine Environmental science Pyrene Air quality index General Environmental Science |
| Zdroj: | Atmospheric Environment. 41:5659-5672 |
| ISSN: | 1352-2310 |
| DOI: | 10.1016/j.atmosenv.2007.02.042 |
| Popis: | Polycyclic aromatic hydrocarbons (PAHs) and particulate matter (PM) are co-pollutants emitted as by-products of combustion processes. Convincing evidence exists for PAHs as a primary toxic component of fine PM (PM2.5). Because PM2.5 is listed by the US EPA as a “Criteria Pollutant”, it is monitored regularly at sites nationwide. In contrast, very limited data is available on measured ambient air concentrations of PAHs. However, between 1999 and 2001, ambient air concentrations of PM2.5 and benzo(a)pyrene (BaP) are available for California locations. We use multivariate linear regression models (MLRMs) to predict ambient air levels of BaP in four air basins based on reported PM2.5 concentrations and spatial, temporal and meteorological variables as variates. We obtain an R2 ranging from 0.57 to 0.72 among these basins. Significant variables (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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