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La contaminación atmosférica global cruza caminos sobre el Mediterráneo
J Lelieveld1, H Berresheim, S Borrmann
1Max Planck Institute for Chemistry, Post Office Box 3060, 55020 Mainz, Germany. lelieveld@mpch-mainz.mpg.de
Science (New York, N.Y.)
|October 26, 2002
Resumen
Se encontraron capas de contaminación atmosférica de hasta 15 km durante el Estudio de Oxidantes Intensivos del Mediterráneo de 2001. La contaminación excedió los estándares en la capa límite, impactando la radiación solar y la precipitación.
Área de la Ciencia:
- Química de la atmósfera química de la atmósfera
- Investigación de la calidad del aire Investigación de la calidad del aire.
- Ciencias ambientales Ciencias ambientales.
Sus antecedentes:
- Las capas de contaminación del aire se extienden desde la superficie hasta 15 km de altitud.
- Los estándares de contaminación se superan en la capa límite del Mediterráneo.
- Las partículas de aerosol impactan la radiación solar y la precipitación.
Objetivo del estudio:
- Investigar las capas de contaminación atmosférica y sus fuentes en la región mediterránea.
- Para comprender la distribución vertical de los contaminantes del aire.
- Para evaluar el impacto de la contaminación en la radiación solar y la precipitación.
Principales métodos:
- El Estudio Mediterráneo de Oxidantes Intensivos se llevó a cabo en el verano de 2001.
- Análisis de las capas de contaminación atmosférica desde la superficie hasta 15 km.
- Seguimiento de las fuentes de contaminación de Europa, Asia y América del Norte.
Principales resultados:
- La contaminación europea desde el norte excede las normas de la capa límite.
- Las partículas de aerosoles reducen la radiación solar, lo que podría suprimir las precipitaciones.
- La contaminación de Asia y América del Norte es transportada a la troposfera media.
- La contaminación asiática transportada a través de los monzones contamina la baja estratosfera.
Conclusiones:
- La región mediterránea experimenta una importante contaminación del aire de múltiples fuentes.
- La contaminación tiene efectos de largo alcance, desde la calidad del aire en la superficie hasta la estratosfera.
- Comprender el transporte de la contaminación es crucial para los estudios atmosféricos regionales y globales.
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