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City
Air Quality
City of New York —
Dataset contains information on New York City air quality surveillance data. Air pollution is one of the most important environmental threats to urban populations... -
Federal
Air Quality Measures on the National Environmental Health Tracking Network
U.S. Department of Health & Human Services —
The Environmental Protection Agency (EPA) provides air pollution data about ozone and particulate matter (PM2.5) to CDC for the Tracking Network. The EPA maintains a... -
Federal
Trips by Distance
Department of Transportation —
Updates are delayed due to technical difficulties. How many people are staying at home? How far are people traveling when they don’t stay home? Which states and... -
City
Open Air Chicago Individual Measurements
City of Chicago —
Sensors deployed throughout the City by Open Air Chicago measuring fine particulate matter 2.5 (PM2.5) and nitrogen dioxide (NO2). All sensors collect data on PM2.5... -
State
GHG Reporting Program Publication
State of Washington —
This dataset contains data reported to Ecology as of January 24, 2025. This dataset contains both reported and covered emissions. Some of these emissions have been... -
Federal
Daily Census Tract-Level PM2.5 Concentrations, 2011-2015
U.S. Department of Health & Human Services —
This dataset provides modeled predictions of PM2.5 levels from the EPA's Downscaler model. Data are at the census tract level for 2011-2015. These data are used by... -
City
Open Air Chicago Day Aggregations
City of Chicago —
Sensors deployed throughout the City by Open Air Chicago measuring fine particulate matter 2.5 (PM2.5) and nitrogen dioxide (NO2). All sensors collect data on PM2.5... -
City
Open Air Chicago Hour Aggregations
City of Chicago —
Sensors deployed throughout the City by Open Air Chicago measuring fine particulate matter 2.5 (PM2.5) and nitrogen dioxide (NO2). All sensors collect data on PM2.5... -
City
Air Pollutant Exposure Zone
City of San Francisco —
SUMMARY The Air Pollutant Exposure Zone (APEZ) map identifies areas in San Francisco where air modeling indicates higher levels of air pollution. This map is required... -
State
Maryland Ozone Exceedance Days in 2008
State of Maryland —
Maryland 8-Hour Ozone Concentrations Exceeding 2008 Health-Based Standard in ppb, Finalized Data. In 2008 EPA set the ozone standard to 75 ppb. High levels of ozone... -
Federal
Daily Census Tract-Level PM2.5 Concentrations, 2001-2005
U.S. Department of Health & Human Services —
This dataset provides modeled predictions of PM2.5 levels from the EPA's Downscaler model. Data are at the census tract level for 2001-2005. These data are used by... -
City
HAQR Priority Green Infrastructure Zones
City of San Francisco —
Heat and air quality issues caused by climate change and gas-powered vehicles affect San Francisco communities differently. Tree canopy that would buffer the effects... -
State
County Level Attainment Status of National Ambient Air Quality Standards (NAAQS)
State of New York —
A list by county of the current attainment status of the National Ambient Air Quality Standards (NAAQS). -
County
DEP - Continuous Emissions Monitoring (CEM)
Montgomery County of Maryland —
This dataset show continuous emissions data from the Dickerson waste-to-energy plant. The composition of the gases generated in each combustion unit are sampled every... -
County
Dickerson Weather Station Data
Montgomery County of Maryland —
This dataset include the Dickerson Weather Station Data. The hourly wind and temperature data are periodically used for Air Quality Dispersion Modeling work for the... -
State
Maryland Ozone Exceedance Days in 2010
State of Maryland —
Maryland 8-Hour Ozone Concentrations Exceeding 2008 Health-Based Standard in ppb, Finalized Data. In 2008 EPA set the ozone standard to 75 ppb. High levels of ozone... -
City
Port of Los Angeles - Port Air Quality (2006 - 2013)
City of Los Angeles —
Air quality by Elemental Carbon (EC) measure. Published historical data. Live and historical data is available via: http://caap.airsis.com/CurrentData.aspx -
State
Maryland State Implementation Plans
State of Maryland —
This data set containslists of State Implementation Plan documents and supporting files. The State Implementation Plans are formal submissions to the Environmental... -
City
E-Designations
City of New York —
This data set contains information and locations of (E) Designations, including CEQR Environment Requirements (Table 1) and CEQR Restrictive Declarations (Table 2),...