Catalog - Data.gov

Found 547 datasets matching "air concentration".

#1 Federal
BOREAS TGB-07 Ambient Air Herbicide and Organochlorine Concentration Data
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
The BOREAS TGB-07 team measured the concentration and flux of several agricultural pesticides in air, rainwater, and dry deposition samples in order to determine the associated yearly deposition...
- none
- zip
- none
- pdf
- none
- none
- +2 more
Search relevance: 117.31 | Views last month: 0
#2 Federal
The potential effects of climate change on air quality across the conterminous U.S. at 2030 under three Representative Concentration Pathways
- Organization: U.S. Environmental Protection Agency
- Updated: 2018-10-23
This dataset is the underlying data described in Nolte et al., "The potential effects of climate change on air quality across the conterminous U.S. at 2030 under three Representative Concentration...
- zip
Search relevance: 101.98 | Views last month: 1
#3 Federal
NARSTO EPA Supersite (SS) Houston, Texas Air Quality Study 2000 (TexAQS2000) Size-specific Particulate Matter (PM) Mass Concentration Data
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
NARSTO_EPA_SS_HOUSTON_TEXAQS2000_PM_SIZE_MASS is North American Research Strategy for Tropospheric Ozone (NARSTO) Environmental Protection Agency (EPA) Supersite (SS) Houston, Texas Air Quality...
- none
- none
- pdf
- pdf
- pdf
- pdf
- +7 more
Search relevance: 82.26 | Views last month: 0
#4 Federal
Dataset of Chemosphere Publication in 2016, Laboratory study of PCB transport from primary sources to settled dust
- Organization: U.S. Environmental Protection Agency
- Updated: 2016-08-10
The data presented in this data file is a product of a journal publication. The dataset contains PCB sorption concentrations to settled dust due to dust/air partition and PCB migration...
- xml
Search relevance: 60.86 | Views last month: 1
#5 Federal
Methane and carbon dioxide concentration data, environmental data, and calculations used to determine sea-air flux on the northern Greenland margin
- Organization: Department of the Interior
- Updated: 2024-12-20T00:00:00Z
Determining how much methane and carbon dioxide cross the sea-air interface is critical when assessing marine greenhouse gas fluxes. This assessment is particularly important on Arctic Ocean...
- xml
- xml
Search relevance: 58.94 | Views last month: 0
#6 Federal
Water temperature, salinity, and others taken by CTD and other instruments from the research vessel Araon in the Chukchi, Bering Seas, and north Pacific from 2021-07-20 to 2021-07-24 (NCEI Accession 0250487)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2023-07-20T00:00:00.000+00:00
These datasets were collected during the research vessel Araon cruise 12, 2nd Leg (ARA12B) in summer of 2021 and submitted by Kyoung-Ho Cho from the Korea Polar Research Institute (KOPRI), who was...
- none
- none
- none
- none
- none
- none
Search relevance: 46.88 | Views last month: 0
#7 Federal
First ISCCP Regional Experiment (FIRE) Cirrus Phase II University of North Dakota Citation Aircraft Microphysical Data
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-10
The First ISCCP Regional Experiments have been designed to improve data products and cloud/radiation parameterizations used in general circulation models (GCMs). Specifically, the goals of FIRE...
- none
- none
- none
- none
- none
- none
- +9 more
Search relevance: 43.68 | Views last month: 0
#8 Federal
Metadata for the Gratz et al. 2019 paper: Ambient Mercury Observations near a Coal-Fired Power Plant in a Western U.S. Urban Area
- Organization: U.S. Environmental Protection Agency
- Updated: 2020-03-17
Excel spreadsheet with the following columns of data: Date/Time (6/2016 to 10/2016) Total Gaseous Mercury Concentration (ng/m3) Sulfur dioxide concentration (ppb) Carbon monoxide concentration...

Search relevance: 40.50 | Views last month: 1
#9 Federal
CMAQ_DATA
- Organization: U.S. Environmental Protection Agency
- Updated: 2010-06-16
Data is CMAQ (Community Multiscale Air Quality) air quality modeling data contained in 12km grids (covering the eastern US) and 36 km grids (covering the entire US) for the years 2004, 2005, and...

Search relevance: 39.79 | Views last month: 0
#10 Federal
Water temperature, salinity, and other physical, biological, chemical and remote sensing data collected aboard the research vessel Falkor, waveglider, and aircraft during cruise FK180528 in the North Pacific Ocean from 2018-05-01 to 2018-06-26 (NCEI Accession 0188678)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2019-05-30T00:00:00.000+00:00
This dataset contains water temperature, salinity, pressure, average wind speed and direction, maximum wind speed, air pressure, air temperature, chlorophyll-a concentration, oil concentration,...
- none
- none
- none
- none
- none
- none
- +2 more
Search relevance: 39.68 | Views last month: 0
#11 Federal
Observations of carbon dioxide in the surface waters of the Eastern North Pacific Ocean and the Bering Sea from 1968-07-21 to 1968-09-03 (NCEI Accession 7100114)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2020-04-06T00:00:00.000+00:00
Measurements of the equilibrium concentration of carbon dioxide in the air and surface waters of the North Pacific Ocean and the Bering Sea are presented. Calibration data for the infrared...
- none
- none
- none
- none
- none
Search relevance: 39.52 | Views last month: 0
#12 Federal
BOREAS AFM-01 NOAA/ATDD Long-EZ Aircraft Flux Data over the SSA
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This data set contains measurements from the NOAA/ATDD Long-EZ Aircraft collected during the 1994 IFCs at the SSA. These measurements were made from various instruments mounted on the aircraft....
- none
- zip
- none
- pdf
- none
- pdf
- +4 more
Search relevance: 39.09 | Views last month: 0
#13 Federal
Air temperature, sea surface temperature, wind speed and others collected from Saildrone SD1023 in the Southern Ocean, South Atlantic Ocean, South Pacific Ocean, South Indian Ocean from 2019-05-10 to 2019-08-24 (NCEI Accession 0259495)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2023-04-28T00:00:00.000+00:00
This dataset is a hydrographic and atmospheric survey collected by sensors mounted on the Uncrewed Surface Vehicle Saildrone 1023 (SD1023) during the Circumnavigation of Antarctica in 2019. This...
- none
- none
- none
- none
- none
- none
Search relevance: 38.69 | Views last month: 0
#14 Federal
Input Files for Hydrologic Simulations for the Conterminous United States for Future Conditions Using the National Hydrologic Model Infrastructure (NHM) and the Coupled Model Intercomparison Project Phase 5 (CMIP5) Representative Concentration Pathway (RCP) 8.5
- Organization: Department of the Interior
- Updated: 2024-09-04T00:00:00Z
The continental United States (CONUS) was modeled to produce simulations of historical and potential future streamflow using the Precipitation-Runoff Modeling System (PRMS) application of the USGS...
- xml
- xml
Search relevance: 38.49 | Views last month: 0
#15 Federal
Input Files for Hydrologic Simulations for the Conterminous United States for Future Conditions Using the National Hydrologic Model Infrastructure (NHM) and the Coupled Model Intercomparison Project Phase 5 (CMIP5) Representative Concentration Pathway (RCP) 6.0
- Organization: Department of the Interior
- Updated: 2024-09-04T00:00:00Z
The continental United States (CONUS) was modeled to produce simulations of historical and potential future streamflow using the Precipitation-Runoff Modeling System (PRMS) application of the USGS...
- xml
- xml
Search relevance: 38.47 | Views last month: 0
#16 Federal
Experimental testing for radon in laboratory and field using a coupled diffusive membrane and alpha track detector, 2024
- Organization: Department of the Interior
- Updated: 2024-09-18T00:00:00Z
Information on radon occurrence in groundwater systems is important to assess risks from radon exposure. For this study we developed a novel passive method to measure for dissolved radon in...
- xml
- xml
Search relevance: 38.32 | Views last month: 0
#17 Federal
Village Green Project station data - March 2015
- Organization: U.S. Environmental Protection Agency
- Updated: 2019-06-08
The data sets include the Village Green Project station time series, including air pollutant concentrations, meteorology data, and diagnostic data from instrumentation. Additionally, air pollutant...
- xml
- none
Search relevance: 38.20 | Views last month: 0
#18 Federal
Input Files for Hydrologic Simulations for the Conterminous United States for Future Conditions Using the National Hydrologic Model Infrastructure (NHM) and the Coupled Model Intercomparison Project Phase 5 (CMIP5) Representative Concentration Pathway (RCP) 4.5
- Organization: Department of the Interior
- Updated: 2024-09-04T00:00:00Z
The continental United States (CONUS) was modeled to produce simulations of historical and potential future streamflow using the Precipitation-Runoff Modeling System (PRMS) application of the USGS...
- xml
- xml
Search relevance: 37.91 | Views last month: 0
#19 Federal
Input Files for Hydrologic Simulations for the Conterminous United States for Future Conditions Using the National Hydrologic Model Infrastructure (NHM) and the Coupled Model Intercomparison Project Phase 5 (CMIP5) Representative Concentration Pathway (RCP) 2.6
- Organization: Department of the Interior
- Updated: 2024-09-04T00:00:00Z
The continental United States (CONUS) was modeled to produce simulations of historical and potential future streamflow using the Precipitation-Runoff Modeling System (PRMS) application of the USGS...
- xml
- xml
Search relevance: 37.81 | Views last month: 0
#20 Federal
First ISCCP Regional Experiment (FIRE) Cirrus Phase II NCAR Sabreliner Aircraft Microphysical Data
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
The First ISCCP Regional Experiments have been designed to improve data products and cloud/radiation parameterizations used in general circulation models (GCMs). Specifically, the goals of FIRE...
- none
- none
- none
- none
- none
- none
- +12 more
Search relevance: 37.72 | Views last month: 0

Filter selections are applied on each click

Draw a geographic box