Clime
← Back to Blog
Tips

Understanding AQI Categories: A Guide for Pet Owners

June 18, 2026 · The Clime Team
Understanding AQI Categories: A Guide for Pet Owners

As a pet owner, it's essential to understand how air quality impacts your furry friends. The Air Quality Index (AQI) is a standardized system that measures air pollution levels and their potential health effects. (airnow.gov)

What Is the AQI?

The AQI is a scale from 0 to 500 that indicates the level of air pollution and associated health risks. Higher AQI values signify worse air quality and greater health concerns. (airnow.gov)

AQI Categories and Their Implications for Pets

The AQI is divided into six categories, each representing a different level of health concern:

  • 0–50 (Good): Air quality is satisfactory, posing little or no risk. Pets can enjoy outdoor activities without concern.

  • 51–100 (Moderate): Air quality is acceptable; however, there may be a risk for some pets, particularly those with respiratory issues. Monitor your pet for signs of discomfort.

  • 101–150 (Unhealthy for Sensitive Groups): Pets with respiratory conditions may experience health effects. Limit outdoor activities for sensitive pets.

  • 151–200 (Unhealthy): Some pets may experience health effects; sensitive pets could experience more serious effects. Reduce outdoor activities and keep pets indoors when possible.

  • 201–300 (Very Unhealthy): Health alert: The risk of health effects is increased for everyone. Keep pets indoors and minimize exposure to outdoor air.

  • 301 and higher (Hazardous): Health warning of emergency conditions: everyone is more likely to be affected. Keep pets indoors and avoid any outdoor activities. (airnow.gov)

Protecting Your Pets During Poor Air Quality

  • Limit Outdoor Time: On days with higher AQI levels, reduce the duration and intensity of outdoor activities for your pets.

  • Create a Clean Indoor Environment: Use air purifiers and keep windows closed to minimize indoor pollution levels.

  • Monitor for Symptoms: Watch for signs like coughing, wheezing, or lethargy, especially in pets with existing health conditions.

  • Stay Informed: Regularly check local AQI reports to make informed decisions about your pet's outdoor activities.

Conclusion

Understanding AQI categories is crucial for the health and well-being of your pets. By staying informed and taking appropriate precautions, you can ensure your pets remain safe and comfortable, regardless of the air quality.

Highlights:

Frequently Asked Questions