ARIA Impact

ARIA Impact is a user-friendly software explicitly designed for evaluating the long-term impact of emissions (gas and particulate) from industrial sites, vehicular traffic and diffuse sources. The system is designed for decision-making purposes providing results that can be compared with regulatory norms of air quality as well as being used for complete evaluation of health risks or odour evaluations.

Aria Impact is a second generation local scale gaussian model that takes into account industrial plume rise, deposition, topography, calm wind situations, NO/NO2 conversion and canyon effects in urban conditions.

Applications
Strong points
Clients

Impact of industrial & traffic emissions on air quality

Statistical assessment of long-term impact of industrial and traffic emissions on air quality
Comparison of concentration levels with regulatory norms (annual averages, percentiles)
Statistical analysis of meteorological data (time series, wind roses)

Comprehensive user interface

Allows import of meteorological, topographical and emission data (constants, with time variations, from an Excel file), without any limitation in number of substances or sources,

Allows statistical processing of meteorological data (time series, wind roses),
Allows simultaneous processing of all types of substances: gaseous, particulate, odour, radioactive pollutants,
Offers a vehicular traffic module: conversion of NOX to NO/NO2, possibility of combining it with the module for calculating emissions from vehicles (TREFIC),
Takes into account simplified topography, blocks the mixing layer, specific module for calm winds, module for rising of dust particles, takes into account the background pollution,
Provides an extensive range of results: concentration map, deposition (annual average, centiles), upper threshold frequency, values calculated at receptors,
Is compatible with other GIS (ArcGIS, MapInfo...), graphical output in native Google Earth format,
Provides a validation file.

ABH Environnement ; IRIS Conseil ; Groupe P&B ; INGEROP ; SETIS Environnement (Groupe DEGAUD) ; ISPE (Roumanie) ; NEODYME ; AFIRM ; RATP ; ENTIME ; BUREAU VERITAS (agence Rueil-Malmaison) ; Ministère de l’Environnement de Malte ; ENVIRONNEMENT SA pour la Jordanie ; BUREAU VERITAS (agence Aix-en-Provence) ; Ministère Aménagement du Territoire, Eau et Environnement (MAROC) ; BUREAU VERITAS (agence Nantes) ; SIEE (agence Aix-en-Provence) ; TOTAL Petrochemicals ; CABINET MERLIN ; SPPPI (DRIRE Nord Pas De Calais) ; ANDRA ;Centre Technique du Papier ; EVOLUTYS ; Equipement & Environnement (Groupe INGEROP) ; CEA DAM; IRSN ; AIR BREIZH ; BUREAU VERITAS (agence Lille) ; SIEE (agence Montpellier) ; SANOFI AVENTIS ; ONYX DTI (ex CERCHIMIE) ; THERIUS ; GES ; SOFRESID ; KALIES ; ORAMIP ; OTE Ingénierie (agence Illkirch) ; OTE Ingénierie (agence Metz) ; AENA (Italie) ; CETIM ; ARPECHIM (Roumanie) ;Agence de l’Environnement de Pitesti (Roumanie) ; BUREAU VERITAS (agence Lyon) ; SOCOTEC (agence Saint Quentin-en-Yvelines) ; BURGEAP ; Université Paris VII ; BETURE Environnement ;AXE ; SOCOTEC Industrie (agence Seclin) (ex AINF) ; ARKEMA (ex ATOFINA) ; SOLLAC ; INGEVALOR ; GDF ; AIRPARIF ; EOG (GUIGUES SA)

Data Input

Spatial Scale: From 5*5 km to 30*30 km.

Meteorological data input: Wind roses or series of 1- or 3-hourly data from a meteorological station or during a particular meteorological situation.

Emission data input: Pollutant description (gas and particles). Emissions and characteristics of point (industries), linear (traffic), area or volume (domestic heating, diffused VOC emission, etc.) sources. Monthly, weekly, and hourly modulations for each source.Vertical meteorological profiles computed from ground measurement time series.

Modelling

Dispersion model:

Gaussian dispersion model. Industrial plume rise. Simplified topography. Dust settling velocity.

Types of calculations :

Academic calculation (modelling for single direction and wind-force).

Statistical calculation from wind rose (by taking into account the occurrence frequency of a general wind rose).

Statistical calculation from a complete meteorological file.

Output

Results :

Automatic generation of result maps.

Selection of substances.

Modification of display properties (iso-values, coloured surfaces, colour shades, etc.).

Exporting values to receptors.

Meteorological data :

Wind roses.

Times series.

Exporting tabular data.

Intégration with GIS :

Native import of ESRI (shp) format files.