Direct planning answer
What does “unhealthy for sensitive groups” mean?
“Unhealthy for sensitive groups” is a U.S. AQI category covering values 101–150 in the AirNow scheme. It communicates that members of broadly defined sensitive groups may experience greater concern than the general public under that system.
Named scale
AQI ≠ µg/m³
Compare within one scheme, with pollutant, time, and source.
Short answer
“Unhealthy for sensitive groups” is a U.S. AQI category covering values 101–150 in the AirNow scheme. It communicates that members of broadly defined sensitive groups may experience greater concern than the general public under that system.
The phrase is not a diagnosis and should not be attached to European AQI as if the systems were identical. AirAgora cannot determine whether a particular person belongs to a sensitive group.
The category is part of the U.S. index vocabulary
U.S. AQI uses good, moderate, unhealthy for sensitive groups, unhealthy, very unhealthy, and hazardous. European AQI uses good, fair, moderate, poor, very poor, and extremely poor.
Equal numbers and similar colors do not create direct equivalence. The pollutant, averaging convention, and official guidance context remain scheme-specific.
How AirAgora answers
Every location keeps the official OpenWeather 1–5 provider label. Interface language translates the category but never turns it into U.S., European, or local regulatory AQI.
A sensitivity preference changes caution communication but not the order of forecast windows. No medical details are required or stored for the planner.
How to use the answer
Confirm the screen says U.S. AQI and identify the main pollutant component, source, timestamp, and whether the value is modeled or observed.
Use AirNow/public-authority guidance and appropriate professional advice for individual action. During severe events, official local instructions are primary.
- U.S. AQI category: 101–150
- Not a diagnosis
- Not a European AQI label
- Scheme and pollutant must be visible
- Individual advice needs appropriate context
Direct answers
Frequently asked questions
Does the category apply to everyone equally?
It is public communication that distinguishes broad groups; it does not determine an individual response.
Is European AQI 101 the same category?
No. European AQI uses different bands and terminology.
Can AirAgora decide whether I am sensitive?
No. It does not collect or evaluate clinical information.
Does a sensitivity setting change the forecast ranking?
No. It changes caution wording, not the deterministic environmental order.
Does AirAgora treat “What does “unhealthy for sensitive groups” mean” as a personal guarantee?
The phrase is not a diagnosis and should not be attached to European AQI as if the systems were identical. AirAgora cannot determine whether a particular person belongs to a sensitive group.
Evidence register
Sources and further reading
The links below identify the primary references used on this page. Selection, summary, and presentation are AirAgora modifications.
Keep exploring
AirAgora provides informational planning guidance, not medical advice. Local conditions can differ from modeled forecasts; follow official guidance during severe events.