Air pollution modeling

AERMOD, CALPUFF, and more

We are experts in air pollution modeling. In more than 25 years of activity, we have made hundreds of studies worldwide, mainly using the US EPA preferred models AERMOD and CALPUFF, to assess the air quality and odor impact of industrial stacks and fugitive emissions, traffic, construction sites, flares, cooling towers, offshore platforms, landfills, waste incinerators, ships, trains, airports.

We help professionals and companies in preparing the technical documentation on modeling for compliance and permitting. Also, we provide scientific support in litigation, on air dispersion modeling and atmospheric-related issues, together with our US partner EnviroComp, Inc.

Meteorology

Data analysis and model input preparation

We offer a spectrum of services which range from the meteorological characterization of a site in a specific period of time (e.g. trends of precipitation, temperature, relative humidity, mixing height, plots of wind roses, plots of stability roses) to the preparation of the meteorological input for atmospheric dispersion models as AERMOD and the geographical and meteorological input of three-dimensional models as CALMET. We also run WRF on specific domains and prepare the input for CALMET through CALWRF (3d.dat files), or directly for AERMOD and CALPUFF through MMIF.

Order meteorological data

WindRosePRO 3 Flares GEPlot AerscreenEZ SPEDI WRF Browser

Software

Windows applications and more

We develop and distribute Windows applications for air quality, meteorology and safety, including WindRose PRO 3, for analyzing and plotting directional data, FLARES, for dimensioning industrial flares and estimating their emissions and impacts (thermal and acoustical), WRF Browser, for visualizing and exporting in KML format the output of the meteorological model WRF.

We also write ad-hoc programs in different languages (Perl, Fortran, Python, VB.NET) for different operating systems. We have deep experience in processing very large datasets of complex structure and produce statistical analyses and georeferenced representations in several formats, including shapefiles and KML files.

Models development

LAPMOD, WetPlume, TOXFLAM, APOLLO2

We develop computer models for air quality modeling. They include LAPMOD (Lagrangian particle model coupled with the meteorological model CALMET), WetPlume (numerical model for plume water content dispersion and deposition), TOXFLAM (short term analytical dispersion model), APOLLO2 (Long-range Lagrangian particle model).
All our models are referenced by publications on international scientific journals.

LAPMOD is available for download, for free.

Web platforms

Web-based solutions for online simulation

We develop modern web-based platforms with client-server architecture for the online application and evaluation of air quality models. They include AQWEB (ARPAE, Italy), for using from remote the LAPMOD model; ENSEMBLE (European Commission JRC), for the evaluation of air quality models and for early warning in case of nuclear emergenices; ARIES (I.S.P.R.A. Rome), the official Italian system for real-time simulation of nuclear releases in air; TM5-FASST web interface (European Commission JRC) to evaluate how air pollutant emissions affect large-scale concentrations and their impact on human health and crop yields; AMS a platfrom for analysis and forecast of meteorology and atmospheric dispersion of pollutants.