Trinity Consultants software

BREEZE AERMET 7 simplifies the process of creating AERMOD-ready meteorological data files from raw data formats. Combining full U.S. EPA regulatory compliance with an all-new user interface, BREEZE AERMET 7 is both more powerful and easier to use than ever.

AERMOD is a steady-state Gaussian dispersion model that represents the current state-of-science and promulgated dispersion model from the U.S. EPA. BREEZE AERMOD is an enhanced version of the EPA-approved AERMOD that provides modelers with the tools and functionality required to perform air quality analyses that help to address both permitting, regulatory, and nuisance issues as well as perform academic research. BREEZE AERMOD/ISC offers the most complete air quality modeling system available on the market today. No other application is used by more air quality professionals around the world.

BREEZE AERSCREEN is a screening model based on the U.S. EPA AERMOD air quality dispersion model and is compatible with the BREEZE AERMOD modeling system. It will produce estimates of “worst-case” 1-hour concentrations for a single source, without the need for hourly meteorological data. BREEZE AERSCREEN also includes conversion factors to estimate “worst-case” 3-hour, 8-hour, 24-hour, and annual concentrations. These concentration estimates are intended to be equal to or greater than the estimates produced by AERMOD with a fully developed set of meteorological and terrain data, however the degree of conservatism will vary depending on the application.

CALPUFF is a multi-layer, multi-species non-steady-state puff dispersion model which simulates the effects of time- and space-varying meteorological conditions on pollution transport, transformation, and removal. It includes algorithms for subgrid scale effects and longer range effects. The U.S. EPA recommends its use for regulatory applications on scales of tens to hundreds of kilometers.

BREEZE ROADS is a complete air dispersion modeling suite that includes CALINE4, CAL3QHC, and CAL3QHCR models. These air dispersion models are used within the software program to predict air quality impacts of carbon monoxide (CO), nitrogen dioxide (NO2), particulate matter (PM), and other inert pollutant concentrations from moving and idling motor vehicles at or alongside roadways and roadway intersections. BREEZE ROADS is used in conjunction with emissions data from MOBILE or other emissions models to demonstrate compliance with National Ambient Air Quality Standards (NAAQS), Federal Conformity Rules, the UK’s National Air Quality Strategy, and modeling for highway site and design selection.

SCREEN3 is a screening version of the ISC3 model. This U.S. EPA-approved air dispersion model is used to analyze single source release scenarios over simple or complex terrain. Users have the option of choosing conservative or worst-case estimates in an initial screening for short-term air quality impacts from a single source. BREEZE SCREEN3 allows you the option to model multiple sources and multiple pollutants in a single run.