Your Personal AQI Action Plan
You see a scary AQI number on your weather app during smoke or pollution. Enter it here, pick your health profile, and get a one-screen yes/no plan in 5 seconds.
AQI Levels at a Glance
Understand the number you entered. This tool uses the reported AQI value as given.
| AQI Range | Category | Color | What It Means | Who Is Affected |
|---|---|---|---|---|
| 0–50 | Good | Air quality is satisfactory, minimal risk for everyone. | Everyone | |
| 51–100 | Moderate | Acceptable, but sensitive individuals may experience minor symptoms during prolonged exertion. | Unusually sensitive individuals | |
| 101–150 | Unhealthy for Sensitive Groups | Sensitive groups may experience health effects; general public unlikely affected. | Sensitive groups (asthma, heart disease, children, elderly) | |
| 151–200 | Unhealthy | Everyone may begin experiencing health effects; sensitive groups face serious effects. | Everyone; sensitive groups at greater risk | |
| 201–300 | Very Unhealthy | Health alert: significant risk for everyone, avoid outdoor activity. | Everyone | |
| 301–500 | Hazardous | Emergency conditions; entire population likely affected. | Entire population |
How This Works
Where does the advice come from?
Action recommendations are deterministic lookups from two embedded matrices: one built from the EPA AQI Technical Assistance Document (2018) breakpoint tables and sensitive-group guidance, the other from WHO Air Quality Guidelines (2021) exposure thresholds. Each health profile has a pre-computed recommendation for each AQI category. No live data, no APIs, no user accounts.
Why five specific actions?
Go outside, exercise outdoors, wear N95, open windows, and run purifier cover the five decisions people actually face when they see an AQI number — the questions that send them to Google in the first place. Each gets a yes or no, never maybe.
Is this medical advice?
No. This is a decision-support tool that translates published air quality guidelines into actionable yes/no items for your profile. If you experience symptoms — coughing, wheezing, chest tightness, shortness of breath — follow your doctor's action plan or seek medical care regardless of the AQI number.
- EPA AQI Technical Assistance Document, 2018
- WHO Air Quality Guidelines, 2021