Modelling the spatial distribution of SO2 and NOx emissions in Ireland
| Autor: | J. Aherne, E.P. Farrell, Y. de Kluizenaar |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Meteorology
Health Toxicology and Mutagenesis Nitrogen Dioxide Air pollution Toxicology Atmospheric sciences Spatial distribution medicine.disease_cause chemistry.chemical_compound medicine Industry Sulfur Dioxide Nitrogen dioxide Nitrogen oxides NOx Air Movements Air Pollutants General Medicine Models Theoretical Pollution Motor Vehicles Deposition (aerosol physics) chemistry Environmental science Nitrogen oxide Spatial variability Ireland Environmental Monitoring |
| Zdroj: | Environmental Pollution. 112:171-182 |
| ISSN: | 0269-7491 |
| DOI: | 10.1016/s0269-7491(00)00120-2 |
| Popis: | The spatial distributions of sulphur dioxide (SO2) and nitrogen oxides (NO(x)) emissions are essential inputs to models of atmospheric transport and deposition. Information of this type is required for international negotiations on emission reduction through the critical load approach. High-resolution emission maps for the Republic of Ireland have been created using emission totals and a geographical information system, supported by surrogate statistics and landcover information. Data have been subsequently allocated to the EMEP 50 x 50-km grid, used in long-range transport models for the investigation of transboundary air pollution. Approximately two-thirds of SO2 emissions in Ireland emanate from two grid-squares. Over 50% of total SO2 emissions originate from one grid-square in the west of Ireland, where the largest point sources of SO2 are located. Approximately 15% of the total SO2 emissions originate from the grid-square containing Dublin. SO2 emission densities for the remaining areas are very low, < 1 t km-2 year-1 for most grid-squares. NO(x) emissions show a very similar distribution pattern. However, NO(x) emissions are more evenly spread over the country, as about 40% of total NO(x) emissions originate from road transport. (C) 2001 Elsevier Science Ltd. |
| Databáze: | OpenAIRE |
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