EPA AERMOD · in your browser
Run the full EPA chain — AERMET, AERMAP, AERSURFACE, BPIPPRM, and AERMOD — from any browser, on any laptop. No workstation to buy or maintain, no dongle. Big NAAQS runs split across the cloud and finish in minutes — several at once — and every result is byte-for-byte identical to EPA’s reference model.
A real PM₂.₅ NAAQS run, start to finish — no install, nothing to configure by hand.
Don’t take our word for it. Every EPA test case runs on the platform and matches the published reference output — design values and every receptor. Read the AERMOD 26135 validation report →
13 source types, 5 criteria pollutants plus HAPs, NO₂ chemistry (ARM2 / OLM / PVMRM / GRSM / TTRM), flat and complex terrain, building downwash — all of it, with nothing to install and always the current EPA version.
Runs entirely in the cloud, opened from any browser on any laptop — no modeling machine to buy or keep patched, and no license dongle. Your computer does nothing but show the results.
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.
We rank the nearest surface stations by distance and flag each Defensible or Requires-justification — already processed through AERMET, with terrain and downwash handled for you. No chasing raw data, no preprocessing by hand.
Concentration contours on a real basemap, an instant NAAQS pass/fail, and source culpability — then one click produces the submission ZIP: the EPA-allowlisted files, sha256 checksums, and version pins, exactly what you attach to the application.
Export everything — inputs, outputs, the raw .inp. No lock-in.
Every number on the results page is parsed from the run’s actual output, not re-derived.
Each account’s projects and runs are sealed off — verified end to end.
Every project is pinned to its AERMOD version (26135 current) — a re-run today matches the run of record.
We’re onboarding a first group of permit consultants. Tell us about your work and we’ll set you up.