AirSense

Air qualityAirSense v1.0

AirSense scores air-quality risk from live pollutant concentrations (WHO-2021-anchored curves for PM2.5, PM10, NO₂ and O₃) plus stagnation and receptor context. Provider AQI indexes appear only as benchmark signals.

Run AirSense

Live mode uses keyless open providers; demo mode is deterministic and offline. Missing data lowers confidence — it never fakes a value.

LatitudeLongitudeData

Score formula

AirSense = 0.35·pm25_risk + 0.20·pm10_risk + 0.15·no2_risk + 0.15·ozone_risk + 0.10·stagnant_air + 0.05·sensitive_group_context

35%pm25_risk

20%pm10_risk

15%no2_risk

15%ozone_risk

10%stagnant_air_score

5%sensitive_group_context

Required inputs

PM2.5 / PM10 (µg/m³)
NO₂, O₃, SO₂, CO (µg/m³)

Optional inputs

dust, aerosol optical depth
wind speed (km/h), boundary layer height (m)
provider AQI (European/US) — benchmark only

Missing optional inputs drop their formula term (weights renormalize) and reduce confidence — the engine never crashes or invents data.

Decision modes

clean_air

Clean air

Concentrations near WHO guideline levels.

moderate_pollution

Moderate pollution

Elevated but generally tolerable for the general population.

unhealthy_for_sensitive_groups

Unhealthy for sensitive groups

Children, elderly, pregnant people and those with heart/lung conditions should reduce exposure.

unhealthy_air

Unhealthy air

Everyone may experience effects; limit prolonged outdoor exertion.

hazardous_air

Hazardous air

Serious effects possible for everyone; avoid outdoor exposure.

insufficient_data

Insufficient data

Not enough pollutant concentration data to assess air quality.

Limitations

Model grid concentrations (~11–40 km) can differ substantially from street-level exposure.
No local emission events (traffic incidents, industrial releases) are modelled.
The score is health-oriented decision support, not a medical assessment.
Provider AQI indexes are displayed for comparison only and never drive the score.

Model card

AirSense is a self-built TerraSentinel engine: external providers supply live environmental variables; the score, mode, confidence, explanation and actions above are computed by this project’s own documented model. Provider risk indexes are used only as benchmark references and never as the output. API: GET /api/engines/airsense/run?lat=&lon=

TerraSentinel is a decision-support tool and does not replace official emergency services, government warnings, or professional environmental management decisions.