Environment & Water
Air Quality & Atmosphere Simulators
A focused Environment & Water hub for air quality & atmosphere tools, keeping related formulas, assumptions, and engineering checks together.
12 simulators
Adjacent categories
Simulator list
Gaussian Plume Air Quality Dispersion Model
Air Quality & Atmosphere
Model ground-level air pollution from stack emissions with Gaussian plume dispersion, Briggs plume rise, and real-time concentration mapping.
Air Quality Index (AQI) Simulator
Air Quality & Atmosphere
Enter the concentrations of PM2.5, PM10, ozone, NO2 and SO2, and this tool computes the US EPA Air Quality Index by piecewise-linear interpolation in real time, showing …
Air Quality Index (AQI) Calculator
Air Quality & Atmosphere
Real-time AQI calculator for PM2.5, PM10, NO2, O3, and CO. Visualize pollutant levels against WHO guidelines with a bar chart and health category indicator.
Biofilter VOC Removal & EBRT Residence Time Simulator
Air Quality & Atmosphere
A concept-design tool for biofilters that remove gas-phase VOCs and odors through microbial metabolism.
Cleanroom Air Change Recovery Simulator
Air Quality & Atmosphere
Cleanroom Air Change Recovery Simulator updates live numeric results and charts as inputs change, supporting early design checks and model review.
CCS Amine CO₂ Absorber Design Simulator
Air Quality & Atmosphere
Design the giant amine absorber that scrubs CO₂ out of power-plant, steel, and cement flue gas.
Direct Air Capture (DAC) CO₂ Removal Simulator
Air Quality & Atmosphere
Design a Negative Emissions Technology (NET) plant that pulls CO₂ straight out of the air.
Gaussian Plume Simulator — Atmospheric Dispersion Model
Air Quality & Atmosphere
Compute downwind dispersion of pollutants from a point source using the Gaussian plume model (Pasquill stability class D). Sliders for emission rate, wind speed, stack h…
Indoor Radon Concentration & Mitigation Simulator
Air Quality & Atmosphere
Estimate the indoor concentration of Radon-222 seeping from granite or sedimentary soils into basements and slabs, using a steady-state mass balance with soil type, base…
Ozone Depletion & ODS Simulator
Air Quality & Atmosphere
Interactively compute the ODP, GWP, atmospheric lifetime, CFC-11 equivalent and CO2 equivalent emissions, and the projected recovery year for CFCs, HCFCs, HFCs and halon…
Floating Roof Tank Rim Seal VOC Emission Simulator
Air Quality & Atmosphere
A web tool that converts the operating parameters of an external or internal floating roof tank into an annual hydrocarbon VOC emission estimate using the API 2517 rim s…
Wet Venturi Scrubber Particle Removal Simulator
Air Quality & Atmosphere
A Venturi wet scrubber forces high-velocity flue gas through a narrow throat where water is injected, so dust and PM impact onto the droplets and are washed out.