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Air quality assessment for Portugal
A Monteiro1, A I Miranda, C Borrego
1CESAM, Departmento de Ambiente e Ordenamento, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
The Science of the Total Environment
|January 9, 2007
Summary
This study simulated air quality in Portugal using the CHIMERE model, finding excessive nitrogen dioxide, sulfur dioxide, and ozone levels that exceed European air quality standards.
Area of Science:
- Environmental Science
- Atmospheric Chemistry
- Air Quality Modeling
Background:
- European Union member states must report annual air pollutant concentrations against European air quality standards.
- Implementation of action plans is required in areas exceeding limit and target values for air pollutants.
Purpose of the Study:
- To conduct a long-term air quality simulation for Portugal in 2001.
- To evaluate the CHIMERE chemistry-transport model's performance for air quality assessment.
Main Methods:
- Utilized the CHIMERE chemistry-transport model for Portugal in 2001.
- Validated model outputs against regional air quality monitoring networks and diffusive sampling data.
Main Results:
- The CHIMERE model accurately reproduced temporal and spatial air pollutant concentration trends.
- Exceedances of air quality targets were identified for nitrogen dioxide, sulfur dioxide, and ozone.
Conclusions:
- The modeling system effectively simulates observed air pollutant concentrations.
- Portugal faced challenges in meeting air quality targets for key pollutants in 2001, particularly concerning ozone, nitrogen dioxide, and sulfur dioxide.
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