1,720,978 research outputs found
Seasonal Modelling Assessment of Ozone Sensitivity to Precursors in Northern Italy
No full textOne of the major thrusts of model application is to assess the relative importance of NOx and VOC controls in reducing ozone levels; in this paper, the long-term assessment of ozone exposure and sensitivity to NOx and VOC emissions, in terms of mean values and seasonal indicators, has been investigated over a complex domain in northern Italy, including Milan metropolitan area. The analysis has been carried out comparing eight seasonal simulations performed by the Gas Aerosol Modelling Evaluation System (GAMES): the summer season 1996, selected as reference case, and seven simulations obtained feeding the modelling system with increasing or decreasing precursor emissions. The study allowed to: (1) recognize the photochemical regimes of the domain, (2) investigate the influence of Milan plume in ozone production and accumulation processes over neighbouring suburban and rural areas, (3) identify parts of the domain where local emission reduction strategies are not effective, (4) provide a support system for local Air Quality Authorities in selecting effective emission reduction strategies
A comprehensive modelling system for ozone exposure assessment
No full text(N. Moussiopoulos and K. Karatzas editors
Simulation of a severe ozone episode over Marseille metropolitan area in the frame of ESCOMPTE modelling exercise.
No full text
POEM-PM: an emission model for secondary pollution control scenarios
No full textThe paper describes the POEM-PM (POllutant Emission Model for gas and Particulate Matter) emission model design. The model, providing actual and alternative emission scenarios, represents a decision support tool to evaluate emission control strategy effectiveness. It estimates emissions at local and mesoscale level and implements a combined top-down and bottom-up approach. The POEM-PM emission fields answer the GAMES (Gas Aerosol Modelling Evaluation System) multiphase modelling system requirements: grid distribution, hourly time modulation, NMVOC split and lumping, PM10 granulometric and chemical description. The emission model has been validated performing episodic and seasonal simulations over Northern Italy by GAMES. POEM-PM is at present the emission model for air quality chemical and transport applications recommended by the Italian National Environmental Agency
- …
