-
Federal
Regional Air Quality Data 162 recent views
U.S. Environmental Protection Agency —
This asset provides data on regional air quality, including trace level SO2, nitric acid, ozone, carbon monoxide, and NOy; and particulate sulfate, nitrate, and... -
Federal
Clean Air Status and Trends Network (CASTNET): Ozone 27 recent views
U.S. Environmental Protection Agency —
8-hour daily maximum ozone concentrations as measured by the Clean Air Status and Trends Network (CASTNET) -
Federal
Clean Air Status and Trends Network (CASTNET) Download Data Module 21 recent views
U.S. Environmental Protection Agency —
The CASTNET Download Data module allows users to select, view, and download CASTNET data (Raw, Aggregate, Modeled & Factual Data) based on user selections.... -
Federal
Clean Air Markets Program Data Application (CAMPD) 12 recent views
U.S. Environmental Protection Agency —
The Clean Air Markets Program Data (CAMPD) application, accessible at https://campd.epa.gov/, allows users to view Clean Air Markets data through the Custom Data... -
Federal
Air Quality System (AQS) ambient observations: 2007 ozone
U.S. Environmental Protection Agency —
Ambient ozone concentrations for 2007 from the national ambient air quality monitoring networks stored in the Air Quality System (AQS). -
Federal
Clean Air Status and Trends Network (CASTNET): Visibility
U.S. Environmental Protection Agency —
Nephelometer data (conforms to IMPROVE network standards) from October 1993 to June 2002. This table is no longer updated. -
Federal
Data for the Community Regional Atmospheric Chemistry Multiphase Mechanism (CRACMM) version 1.0
U.S. Environmental Protection Agency —
Supporting data for CRACMMv1, including the SPECIATE database mapped to CRACMM, input to the Speciation Tool, profile files output from Speciation Tool for input to... -
Federal
Time series analysis of wintertime O3 and NOx formation
U.S. Environmental Protection Agency —
Concentrations of 11 species are reported from continuous measurements taken during a wintertime field study in Utah. Time series data for measured species generally... -
Federal
Lightning NOx Emissions in CMAQ Data
U.S. Environmental Protection Agency —
Meta Data of the dataset for “Assessing the Impact of Lightning NOx Emissions in CMAQ Using Lightning Flash Data from WWLLN over the Contiguous United States” Figure... -
Federal
Mobile source air quality data used as inputs to generate health effect incidence. PM and ozone health effect incidence for 17 mobile source sectors in 2011 and 2025; baseline mortality incidence in 2011 and 2025; and mortality percentage maps
U.S. Environmental Protection Agency —
Mobile source-related PM and Ozone air quality concentration data used as inputs to BenMAP-CE to generate the attributable health burden of 17 different mobile sector... -
Federal
Relative contributions of select multigeneration products to chamber SOA formed from photooxidation of a range (C10-C17) of n-alkanes under high NOx conditions
U.S. Environmental Protection Agency —
A series of chamber experiments was conducted to investigate the change in the relative contribution of multigeneration reaction products to total secondary organic... -
Federal
KORUS_AQ 2016 Data Archive
U.S. Environmental Protection Agency —
Archived data for the 2016 KORUS-AQ study in South Korea. Data may include non-EPA data generated on the DC-8 aircraft and both EPA and non-EPA data generated to... -
Federal
Raw data from "Uncertainty in collocated mobile measurements of air quality" version 1.1, updated 2020-04-13
U.S. Environmental Protection Agency —
This is the raw pollutant data collected on August 6, 2014 in the greater Denver, Colorado area by three mobile air pollution platforms. Data was collected by Aclima,... -
Federal
Significant Ground-level Ozone Attributed to Lightning-induced Nitrogen Oxides during Summertime over the Mountain West States
U.S. Environmental Protection Agency —
This link provides the description and the data files that were used to create the tables and figures in the product. This dataset is associated with the following... -
Federal
Changes in ozone chemical sensitivity in the U.S. from 2007 to 2016
U.S. Environmental Protection Agency —
We used data from EPA's AQS database and from the Ozone NAAQS review documentation. This dataset is associated with the following publication: Koplitz, S., H. Simon,... -
Federal
Mutagenic atmospheres resulting from the photooxidation of aromatic hydrocarbon and NOx mixtures
U.S. Environmental Protection Agency —
Although many volatile organic compounds (VOCs) are regulated to limit air pollution and the consequent health effects, the photooxidation products generally are not.... -
Federal
Secondary Organic Aerosols from Aromatic Hydrocarbons and their Contribution to Fine Particulate Matter in Atlanta, Georgia
U.S. Environmental Protection Agency —
Tracers of secondary organic aerosols (SOA) from thirteen aromatic hydrocarbons were quantified in laboratory smog chamber experiments. Class-specific SOA tracers... -
Federal
Characterization of polar organosulfates in secondary organic aerosol from the unsaturated aldehydes 2-E-pentenal, 2-E-hexenal, and 3-Z-hexenal
U.S. Environmental Protection Agency —
We show in the present study that the unsaturated aldehydes, 2-E-pentenal, 2-E-hexenal and 3-Z-hexenal, are biogenic volatile organic compound (BVOC) precursors for... -
Federal
Data for AMORE-Isoprene v1.0: A new reduced mechanism for gas-phase isoprene oxidation
U.S. Environmental Protection Agency —
Data zip file contains the exact CMAQ code used by Wiser et al. in the development of CRACMM1AMORE. In addition, CMAQ predictions and AQS observations of formaldehyde... -
Federal
Characterization of Aerosol Nitro Aromatic Compounds Validation of an Experimental Method
U.S. Environmental Protection Agency —
The analytical capabilities associated with the use of silylation reactions have been extended to a new class of organic molecules, nitroaromatic compounds (NACs)....