Understanding Air Quality Data

An extensive Bay Air Center resource for local air sensor data, spanning the nine counties covered by the Bay Area Air Quality Management District. The […]

An overview of the various air quality data resources available, including their data sources, what pollutants they report, type of data, averaging-time, uses, and additional relevant information

Air quality conditions fluctuate largely due to changes in weather conditions and emissions of pollutants into the air.

Access to current and historical air quality and meteorological information based on measurements taken at stations in the Air District’s air quality data network.

Local Bay Area air quality alerts and information on how to reduce air pollution.

Answers to common air quality questions from the Air District.

Help understanding why different sites show different readings and where to access the most accurate data.

U.S. real-time, local air quality index data.

Air Data website with recent and historical data collected at outdoor monitors across the US.

Daily and hourly data from state-run air quality monitoring sites in California,

Country-wide map of air sensors and reference instruments measuring PM2.5 showing current air quality conditions, wildfires, and smoke plumes.

PurpleAir air quality sensor data and downloads on a global map. Not calibrated.

Clarity Movement’s air quality sensor map, showing real-time readings. Internally calibrated.

Aclima’s hyperlocal climate and health data taken throughout the Bay Area.

Air District’s data hub: What you breathe, who they regulate, what they measure, and how to get involved.

Interactive maps showing air quality forecasts, air quality monitoring data, facilities, and overburdened communities throughout the Bay Area.

Mapping tool to look at sources, and analyze emissions of greenhouse gases, criteria air pollutants, and air toxics from facilities around California.

National Air Quality: Status and Trends of Key Air Pollutants. Explore air quality trends interactively with the Our Nation’s Air report, updated annually.

More links and resources helpful for data analysis and visualization of community monitoring data.

Open-source R package for air quality data analysis and an application for viewing data in a user-friendly web experience.

Open-source R package for air quality data visualization and analysis.

Free, web-based tool that can be used to explore environmental data that has been collected while either stationary or in motion.

Daily satellite image interface that allows users to see current and historical air quality events as well as other major global hazards and disasters.

Information about a network of clean air centers to mitigate the adverse public health impacts due to wildfires and other smoke events.

Information on the BAAQMD’s wildfire response program, which aims to help mitigate the air quality effects of wildfires.

Wildfire resources: how to prepare for smoke, health concerns from wildfire smoke and what to do during a smoke event, and other resources.

Resources to help educate the public about the risks of smoke exposure and actions they can take to protect their health.

Maps and data of wildfire smoke plumes.

A weather-smoke model that simulates smoke dispersion over complex terrain.

A summary and map of all reported California emergency incidents, including could include large, extended-day wildfires (10 acres or greater), floods, earthquakes, hazardous material spills, etc.

Map of nation-wide all-risk incidents, including wildfires.

A collection of fire cameras and tools to help firefighters and first responders in the western US. 

Information on indoor air pollution, causes, and health effects.

Information about indoor air quality and air cleaning devices such as high efficiency filtration devices.