Seasonal Transport of Fine Particles to the Grand Canyon
| Autor: | Luis A. de P. Vasconcelos |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Pollutant
Canyon geography geography.geographical_feature_category Meteorology Air pollution Stratification (water) Management Monitoring Policy and Law Seasonality Atmospheric sciences medicine.disease medicine.disease_cause Aerosol Ambient air TRACER medicine Environmental science Waste Management and Disposal |
| Zdroj: | Journal of the AirWaste Management Association (1995). 49(3) |
| ISSN: | 2162-2906 |
| Popis: | Potential sources of pollutants can be identified by analyzing back trajectories associated with extreme ambient concentrations. Conditional frequency analysis (CFA) was used to identify statistically significant associations of geographical regions and ambient air quality observed at sites near the Grand Canyon. Stratification by season reveals a pattern of association during the fall quarter that is not observed during other seasons. Application of CFA to different source tracers provides additional information on the nature of the associations. Tracer species that were often below detection limits can be studied because the method requires only that the highest concentrations be identified. |
| Databáze: | OpenAIRE |
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