About BreathePeek

BreathePeek is a comprehensive US air quality and pollen database designed to help Americans make informed decisions about their respiratory health and environment.

What We Offer

• 73 City Profiles — Detailed air quality data including AQI, PM2.5, ozone levels, pollution sources, and wildfire risk assessments.
• 51 State Profiles — State-level air quality trends, monitoring station counts, nonattainment areas, and pollen season data.
• 6 Pollutant Guides — In-depth profiles of PM2.5, PM10, Ozone, CO, SO2, and NO2 with EPA standards and health effects.
• 48 Pollen Season Records — Tree, grass, and weed pollen timing and severity data by state.
• 30 Metro Rankings — The cleanest and most polluted metro areas in America.
• AQI Health Guide — All 6 EPA AQI categories with health impacts and protective recommendations.

Our Data

All air quality data is sourced from the EPA Air Quality System (AQS), AirNow, and state environmental agencies. Pollen data is compiled from the National Allergy Bureau and state health departments. We update our database regularly to ensure accuracy.

Part of the DataPeek Network

BreathePeek is part of the DataPeek Insights Network, a family of data-driven reference sites covering topics from environmental health to personal finance. Each site in our network is built on verified, publicly available data to provide clear, actionable insights.