EPA AERMOD · in your browser
Regulatory modeling without the desktop.
Run the full EPA chain (AERMET, AERMAP, AERSURFACE, BPIPPRM and AERMOD) from any browser, on any laptop. No workstation to buy or maintain, and no dongle. Large NAAQS runs are split across the cloud and finish in minutes, several at once, and every EPA test case matches EPA’s reference results to at least four significant figures.
Results of a real PM₂.₅ NAAQS run: concentration contours over the receptor grid, on the actual basemap.
Every EPA test case runs on the platform and is compared with EPA’s published reference output, design values and every receptor. Read the AERMOD 26135 validation report →
The whole job. None of the desktop.
13 source types, 5 criteria pollutants plus HAPs, NO₂ chemistry (ARM2 / OLM / PVMRM / GRSM / TTRM), flat and complex terrain, building downwash, multipathway health risk and Class I visibility, all with nothing to install and always the current EPA version.
No workstation. Nothing to maintain.
Runs entirely in the cloud, opened from any browser on any laptop. There is no modeling machine to buy or keep patched, and no license dongle. Your computer only shows the results.
Parallel in the cloud: minutes, not overnight
A five-year NAAQS run over a thousand receptors is split across dozens of machines and finishes in minutes. Start several projects at once; they run side by side, and keep going even if you close the tab.
Defensible meteorology, without the search
The nearest surface stations are ranked by distance and marked Defensible or Requires justification, already processed through AERMET, with terrain and downwash handled for you. No chasing raw data and no preprocessing by hand.
Results you can read, a package the regulator expects
Concentration contours on a real basemap, an immediate NAAQS pass or fail, and source contributions. One click then produces the submission package: the EPA-allowlisted files, file checksums and version records, ready to attach to the application.
Multipathway health risk (EPA HHRAP)
Inhalation and the indirect pathways through soil, water and the food chain, from the same project and the same AERMOD results. Toxicity and fate data are EPA's own, and every checked calculation reproduces its HHRAP equation exactly.
Class I visibility (VISCREEN and PLUVUE II)
Plume visual impact screening at Levels 1 and 2 with EPA's VISCREEN, and Level 3 with PLUVUE II, run from the project's own sources and Class I areas. No separate program to install and no inputs to retype.
Your data is yours
Export everything: inputs, outputs and the AERMOD input file. No lock-in.
Traceable by design
Every number on the results page is read from the run’s actual output, never recomputed.
Private & isolated
Each account’s projects and runs are sealed off, verified end to end.
Pinned & reproducible
Every project is pinned to its AERMOD version (26135 current); a re-run today matches the run of record.
Built for the consultant who stakes their name on the result.
Subscribe and start modeling today. Questions or requests? Write to us at [email protected].