---
id: "us_aqi_category"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["environment"]
country: ["US"]
langs: ["en"]
quality: 80
url: "https://registry.apicrafter.io/datatype/us_aqi_category"
---
# US Air Quality Index category (`us_aqi_category`)
> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.
Category of the Air Quality Index of the US Environmental Protection Agency (EPA), reported by AirNow and state agencies for ozone, particle pollution and other pollutants. There are six categories by index value: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300) and Hazardous (301 and higher); each has a colour from green to maroon.
- Personal data (PII): no
- Categories: Environment (protected areas, biodiversity, water, weather, emissions, waste) (environment)
- Countries: United States (US)
- Languages: English (en)
- Classification: categorical
## Detection
Regular expression (Python `re`):
```
^(?:Good|Moderate|Unhealthy for Sensitive Groups|Unhealthy|Very Unhealthy|Hazardous)$
```
## Examples
- `Moderate` — Index value 51 to 100; AirNow AQI basics
- `Unhealthy for Sensitive Groups` — Index value 101 to 150; AirNow AQI basics
- `Fair` (invalid example) — A band of the European Air Quality Index, not a US AQI category
## Translations
- ru: Категория индекса качества воздуха США (AQI): Категория индекса качества воздуха Агентства по охране окружающей среды США — от Good (0–50) до Hazardous (301 и выше), всего шесть категорий.
## Sources
- doc:
- wikipedia:
## Quality
Score 80/100. Missing: mapping (Wikidata, Schema.org, ...), detector coverage.
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