AndreaBozzo/ceres-open-data-index huggingface dataset:
Air Quality System (AQS) ambient observations: 2007 ozone

Ambient ozone concentrations for 2007 from the national ambient air quality monitoring networks stored in the Air Quality System (AQS).

Tags: air-pollution, air-quality, ambient-air, clean-air-trends, environment, epa, epidemiology, federal-data-download, federal-datasets, monitoring-air, ozone, public-health, respiratory, united-states
Organization: U.S. Environmental Protection Agency
Title V Permitting Statistics Inventory

The Title V Permitting Statistics Inventory contains measured and estimated nationwide statistical data, consisting of counts of permitted sources, types of permits issued, and the timeliness of permit issuance, for the operating permits programs being implemented under CAA authority (40 CFR parts 70 and 71). This data is non-source specific. The statutory authority leading to the collection of this information comes from Title V of the Clean Air Act.Prior to July 2008, data collected on state permit programs (part 70) was not equivalent to that collected when EPA was the permitting agency (part 71).  Current system includes semiannual data from 2006-present; prior data is archived.Data is currently not publicly available, certain statistical data has been made available in the past, but not currently. This data is mostly used for ICR and PART reporting purposes.

Tags: clean-air-act, climate-change, environment, environmental-protection-agency, epa, icr, national-administrative-tracking, oaqps, oar, office-of-air-and-radiation, office-of-air-quality-planning-and-standards, part, permitting, title-v, title-v-permitting-statistics, united-states
Organization: U.S. Environmental Protection Agency
Our Nation's Air - annual air trends report, USA, EPA OAR OAQPS

Annual air trends report in the form of an interactive web application. The report features a suite of visualization tools that allow the user to:
-Learn about air pollution and how it can affect our health and environment.
-Compare key air emissions to gross domestic product, vehicle miles traveled, population, and energy consumption back to 1970.
-Take a closer look at how the number of days with unhealthy air has dropped since 2000 in 35 major US cities.
-Explore how air quality and emissions have changed through time and space for each of the common air pollutants.
-Check out air trends where you live.

Users will also be able to share this content across social media, with one-click access to Facebook, Twitter, Pinterest, and other major social media sites.

Tags: air, biota, boundaries, cleanup, climatologymeteorologyatmosphere, conservation, ecology, ecosystem, energy, environment, exposure, hazards, health, human, imagerybasemapsearthcover, monitoring, puerto-rico, quality, regulatory, risk, toxics, transportation, united-states, utilitiescommunication, virgin-islands
Organization: U.S. Environmental Protection Agency
Pollution Control Measures and Equipment

This asset provides information on all operating and planned-committed electricity generation units (used as primary input for IPM)

Tags: clean-air-act, environment, environmental-protection-agency, epa, ghg, greenhouse-gas, integrated-planning-module, ipm, national-electric-energy-data-system, needs, nox, oap, oar, office-of-atmospheric-programs, pollution-control-measures, so2, united-states
Organization: U.S. Environmental Protection Agency
National Greenhouse Gas Emission Inventory

The National Greenhouse Gas Emission Inventory contains information on direct emissions of greenhouse gases as well as indirect or potential emissions of greenhouse gases through fuels combustion or oxidation, plus releases from storage or sequestration facilities, compiled on an annual basis. Substance classes principally include include CO2, methane, nitrous oxide, and fluorinated gases. The 2008 Consolidated Appropriations Act and the Mandatory Reporting of Greenhouse Gases Act are the statutory basis behind this data. Reporting includes nine sectors. Data is  contributed by reporting industrial and commercial sources of more than 25,000 tons of CO2 equivalent per year. It is also estimated and modeled for transportation and other sources which are geographically distributed.

Tags: climate-change, consolidated-appropriations-act-2008, e-ggrt, electronic-greenhouse-gas-reporting-tool, environment, environmental-protection-agency, epa, ghg, greenhouse-gases, mandatory-reporting-of-greenhouse-gases-rule, oap, oar, office-of-air-and-radiation, office-of-air-pollutants, united-states
Organization: U.S. Environmental Protection Agency
Integrated Strategic Tracking and Recruiting Database (iSTAR) Data Inventory

The Integrated Strategic Tracking and Recruiting Database (iSTAR) Data Inventory contains measured and modeled partnership and contact data. It is comprised of basic organization information, their relationship with CPPD, and relative contact information.The statutory authority leading to the collection of this information comes from Title I Section XIV of the Clean Air Act.Sustance classes include CAPs, and data is collected daily.

Tags: caps, clean-air-act, climate-change, cppd, energy-efficiency, energy-star, environment, environmental-protection-agency, epa, integrated-strategic-tracking-and-recruiting-database, istar, oap, oar, office-of-atmospheric-programs, united-states
Organization: U.S. Environmental Protection Agency
Clean Air Status and Trends Network (CASTNET): Ozone

8-hour daily maximum ozone concentrations as measured by the Clean Air Status and Trends Network (CASTNET)

Tags: air-pollution, air-quality, clean-air-trends, environment, epa, federal-data-download, federal-datasets, monitoring-air, oxygen, ozone, ozone-concentration, public-health, respiratory, united-states
Organization: U.S. Environmental Protection Agency
Clean Air Status and Trends Network (CASTNET) Download Data Module

The CASTNET Download Data module allows users to select, view, and download CASTNET data (Raw, Aggregate, Modeled & Factual Data) based on user selections.
  
CASTNET sites are located in or near rural areas and sensitive ecosystems collecting data on ambient levels of pollutants where urban influences are minimal. CASTNET, which was initiated in 1986, is able to provide data needed to assess and report on geographic patterns and long-term temporal trends in ambient air pollution and dry atmospheric deposition. CASTNET can also be used to track changes in measurements associated with climate change (such as temperature and precipitation).

Tags: air-pollution, air-quality, clean-air-trends, environment, epa, federal-data-download, federal-datasets, monitoring-air, oxygen, ozone, ozone-concentration, public-health, respiratory, united-states
Organization: U.S. Environmental Protection Agency
Clean Air Markets Program Data Application (CAMPD)

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 Download Tool and Bulk Data Files. These tools are driven by APIs documented in the CAM API Portal https://www.epa.gov/airmarkets/cam-api-portal, which is accessible through CAMPD. The Custom Data Download Tool and APIs allow users to create custom queries to explore CAMD’s database through different data types: emissions, allowances, compliance, and facility attributes. Prepackaged Bulk Data Files are also available for commonly requested datasets and larger data downloads. EPA's Clean Air Markets Division (CAMD) manages several market-based regulatory programs designed to improve air quality and ecosystems. The most well-known of these programs are EPA's Acid Rain Program and the Cross-State Air Pollution Rule (CSAPR) Programs, which reduce emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx)-compounds that adversely affect air quality, the environment, and public health.

Tags: acid, acid-deposition, acid-rain, air-pollution, air-quality, aq, cap-and-trade, emission, emissions, environment, epa, facilities, facility, federal-data-download, federal-datasets, nitrogen, nox, ozone, power-plants, sulfur, tradeable-permits, united-states
Organization: U.S. Environmental Protection Agency
AirData

The AirData site provides access to yearly summaries of United States air pollution data, taken from EPA's air pollution databases. AirData has information about where air pollution comes from (emissions) and how much pollution is in the air outside our homes and work places (monitoring).

Tags: chemicals, environment, environmental-media-topics, health, health-effects, health-risks, human-health, substances, toxicity, united-states, water
Organization: U.S. Environmental Protection Agency
National Greenhouse Gas Emission Inventory (EV-GHG)

The EV-GHG Mobile Source Data asset contains measured mobile source GHG emissions summary compliance information on light-duty vehicles, by model, for certification as required by the 1990 Amendments to the Clean Air Act, and as driven by the 2010 Presidential Memorandum Regarding Fuel Efficiency and the 2005 Supreme Court ruling in Massachusetts v. EPA that supported the regulation of CO2 as a pollutant. Manufacturers submit data on an annual basis, or as needed to document vehicle model changes. This asset will be expanded to include medium and heavy duty vehicles in the future.The EPA performs targeted GHG emissions tests on approximately 15% of vehicles submitted for certification. Confirmatory data on vehicles is associated with its corresponding submission data to verify the accuracy of manufacturer submissions beyond standard business rules.Submitted data comes in XML format or as documents, with the majority of submissions sent in XML, and includes descriptive information on the vehicle itself, emissions information, and the manufacturer's testing approach. This data may contain proprietary information (CBI) such as information on estimated sales or other data elements indicated by the submitter as confidential. CBI data is not publically available; however, CBI data can accessed within EPA under the restrictions of the Office of Transportation and Air Quality (OTAQ) CBI policy [RCS Link]. Pollutants data includes CO2, CH4, N2O. Datasets are divided by vehicle/engine model and/or year with corresponding emission, test, and certification data. Data assets are stored in EPA's Verify system.Coverage began in 2011, with summary light duty data available to the public on request. Raw data is only available to select EPA employees.EV-GHG Mobile Source Data submission documents with metadata, certificate and summary decision information is stored in Verify after it has been quality assured. Where summary data appears inaccurate, OTAQ returns the entries for review to their originator.

Tags: climate-change, consolidated-appropriations-act-2008, e-ggrt, electronic-greenhouse-gas-reporting-tool, environment, environmental-protection-agency, epa, ghg, greenhouse-gases, mandatory-reporting-of-greenhouse-gases-rule, oap, oar, office-of-air-and-radiation, office-of-atmospheric-programs, united-states
Organization: U.S. Environmental Protection Agency
Analysis of Methane Mitigation Options using the MARKAL Model for the US: Calibration Data for Methane Emissions

This dataset contains the output for modeling runs that were performed to investigate the effectiveness of various technologies and lay the groundwork for the formulation of policies for reducing methane emissions. See the full report at https://www.epa.gov/methane/projections.html.

Tags: air, air-pollutants, analysis-technology, climate-change, environment, environmental-media-topics, pollutants-contaminants, pollution-prevention, research, research-analysis, substances, united-states
Organization: U.S. Environmental Protection Agency
Ozone-depleting Substances (ODS)

This site includes all of the ozone-depleting substances (ODS) recognized by the Montreal Protocol.  The data include ozone depletion potentials (ODP), global warming potentials (GWP), and CAS numbers for each ODS.  The substances are organized by class.

Tags: air-pollutants, chemicals, environment, health, health-effects, human-health, pollutants-contaminants, substances, united-states
Organization: U.S. Environmental Protection Agency
Modeling Results for Policy Analyses

This asset provides information on policy options in abating SO2, NOx and Greenhouse gases.

Tags: clean-air-act, economic-impacts, environment, environmental-protection-agency, epa, ghg, greenhouse-gases, integrated-planning-model, integrated-planning-module, ipm, nox, oap, oar, office-of-atmospheric-programs, pollutant-abatement, so2, united-states
Organization: U.S. Environmental Protection Agency
Methane Tracking and Mitigation Options - EPA CMOP

This dataset contains the sub-model for EPA's MARKAL model, which tracks methane emissions from the energy system, and limited other sources (landfills and manure handling). This dataset includes projections of future methane emissions from the energy system out to 2030 and potential mitigation levels of methane emissions by energy system component. See the full report at https://www.epa.gov/methane/projections.html.

Tags: air, air-pollutants, analysis-technology, climate-change, environment, environmental-media-topics, pollutants-contaminants, pollution-prevention, research, research-analysis, substances, united-states
Organization: U.S. Environmental Protection Agency
Global Non-CO2 Greenhouse Gas Emission Projections & Mitigation Potential: 2015-2050: Download the Report

Marginal abatement curves (MAC) can be downloaded as data annexes to the Global Mitigation of Non-CO2 Greenhouse Gases report. This data allows for improved understanding of the mitigation potential for non-CO2 sources, as well as inclusion of non-CO2 greenhouse gas mitigation in economic modeling of multigas mitigation strategies. The full report at https://www.epa.gov/climatechange/economics/international.html.

Tags: accidents, coastal-environments, emergencies, emergencies-and-cleanup-topics, environment, environmental-media-topics, leaks-spills, oceans, offshore-environments, surface-water, united-states, water
Organization: U.S. Environmental Protection Agency
Atmospheric Deposition Modeling Results

This asset provides data on model results for dry and total deposition of sulfur, nitrogen and base cation species. Components include deposition velocities, dry deposition and total deposition for sulfur and nitrogen from 1989 to present

Tags: clean-air-act, emissions, environment, environmental-protection-agency, epa, mlm, multilayermodel, nitrogen, oap, oar, office-of-atmospheric-programs, sulfur, united-states
Organization: U.S. Environmental Protection Agency
Clean Air Status and Trends Network (CASTNET): Visibility

Nephelometer data (conforms to IMPROVE network standards) from October 1993 to June 2002. This table is no longer updated.

Tags: acid-rain, air-pollution, air-quality, ambient, ambient-concentrations, castnet, clean-air-trends, dry-deposition, environment, epa, federal-data-download, federal-datasets, hno3, monitoring, nephelometer, nitric-acid, ozone, particles, public-health, so2, united-states, visibility
Organization: U.S. Environmental Protection Agency
[Extramural Research] Emission & Generation Resource Integrated Database (eGRID)

The Emissions & Generation Resource Integrated Database (eGRID) is a comprehensive source of data on characteristics of almost all electric power generated in the United States. This data includes capacity; heat input; net generation; associated air emissions of nitrogen oxides, sulfur dioxide, carbon dioxide, methane, nitrous oxide and mercury; emissions rates; resource mix (i.e., generation by fuel type); nonbaseload calculations; line losses (a.k.a., grid gross loss); and many other attributes. The data is provided at the unit and generator levels, as well as, aggregated to the plant, state, balancing authority, eGRID subregion, NERC region, and US levels. As of January 2025, the available editions of eGRID contain data for years 2023, 2022, 2021, 2020, 2019, 2018, 2016, 2014, 2012, 2010, 2009, 2007, 2005, 2004, and 1996 through 2000.

Tags: air, air-pollution, biomass, carbon-dioxide, clean-energy, climate, coal, displaced-emissions, egrid, electricity, emission-rates, emissions, emissions-and-generation-resrouce-integrated-database, emissions-rates, emissions-reductions, energy, energy-efficiency, environment, environmental-impacts, environmental-proctection-agency, facilities, gas, geothermal, ghg, green-power, greenhouse-gas, hydro, hydroelectricity, hydropower, landfill-gas, location, mercury, methane, monitoring, municipal-solid-waste, nerc-region, nitrogen-dioxide, non-baseload, nonrenewable-resources, nuclear, oil, pollutants, power-generation, power-plants, production, puerto-rico, renewable-energy, renewable-resources, solar, sulfur-dioxide, system-mix, technologies, technology, total-output-emission-rate, united-states, us-epa, utilities, utilitiescommunication, utility, wind
Organization: U.S. Environmental Protection Agency
Regional Monitoring of Acidic Lakes and Streams

This asset provides data on the acid-base status of lakes and streams. Key chemical indicators measured include: sulfate, nitrate, ammonium, chloride, Acid Neutralizing Capacity (ANC), pH, base cations, dissolved organic carbon (DOC), total aluminum. TIME and LTM are part of EPA's Environmental Monitoring and Assessment Program (EMAP). Long-term monitoring of the acid-base status (pH, ANC, SO4, NO3, NH4, DOC, base cations, Al) in lakes and streams.  Monitoring is conducted in acid sensitive regions of the Eastern U.S.

Tags: acid, anions, cations, clean-air-act, emissions, environment, environmental-protection-agency, epa, lakes, long-term-monitoring, napap, national-acid-precipitation-assessment-program, oap, oar, office-of-atmospheric-programs, temporally-integrated-monitoring-of-ecosystems, time, united-states
Organization: U.S. Environmental Protection Agency
Efficacy of ventilation, HEPA air cleaners, universal masking, and physical distancing for reducing exposure to simulated exhaled aerosols in a meeting room-Dataset

There is strong evidence associating the indoor environment with transmission of SARS-CoV-2, the virus that causes COVID-19. SARS-CoV-2 can spread by exposure to droplets and very fine aerosol particles from respiratory fluids that are released by infected persons. Layered mitigation strategies, including but not limited to maintaining physical distancing, adequate ventilation, universal masking, avoiding overcrowding, and vaccination, have shown to be effective in re-ducing the spread of SARS-CoV-2 within the indoor environment. Here, we examine the effect of mitigation strategies on reducing the risk of exposure to simulated respiratory aerosol particles within a classroom-style meeting room. To quantify exposure of uninfected individuals (Recip-ients), surrogate respiratory aerosol particles were generated by a breathing simulator with a headform (Source) that mimicked breath exhalations. Recipients, represented by three breathing simulators with manikin headforms, were placed in a meeting room and affixed with optical particle counters to measure 0.3–3 µm aerosol particles.

Tags: aerosol, hepa, masking, sarscov2, ventilation
Organization: U.S. Department of Health & Human Services
City Owned Property

This City Owned Property data has been compiled from deeds, maps, assessor records, and other public records on file in the City of Hartford. The intent of this data layer is to depict a graphical representation of real property information relative to the planimetric features for the City of Hartford and is subject to change as a more accurate survey may disclose.

Tags: cadastral, ct, development, hartford, housing, parcel, property
Organization: City of Hartford
Dual disinfection

Municipal wastewater treatment case studies:  These two full scale studies describes the steps and advantages of peracetic acid and chlorination combination for treating wastewater. 

This dataset is associated with the following publication:
Namboodiri, V., and A. Garg. Enhanced Inactivation of E. coli and Enterococci through Dual Disinfection with PAA and Chlorine: Two Full-Scale Wastewater Treatment Case Studies.   JOURNAL OF ENVIRONMENTAL ENGINEERING. American Society of Civil Engineers  (ASCE), Reston, VA, USA, 152(4): 05026002, (2026).

Tags: byproducts, dual-disinfection, municipal-wastewater-treatment-plant, wastewater-treatment
Organization: U.S. Environmental Protection Agency
Hourly Electricity Demand Profiles for Each County in the Contiguous United States

This dataset provides estimated hourly electricity demand for each county in the contiguous United States from 2016-2023. The demand profiles represent the sum of two components: (1) Weighted averages of reported hourly demand profiles for North American Electric Reliability Corporation balancing authority (BA) regions and subregions, scaled to match annual estimates of county-level retail sales and direct use of electricity and weighted by the estimated percentage of county load served by each BA region or subregion. (2) Weighted averages of modeled hourly, county- and sector-level distributed photovoltaic (DPV) capacity factor profiles, scaled to match annual estimates of on-site consumption of DPV-generated electricity for each county and weighted by the percentage of consumption attributable to each sector

Annual county-level retail sales are estimated by aggregating utility-reported sales to the state level and allocating the results to counties according to each county's share of state population. Annual county-level direct use is calculated by aggregating power plant-reported direct use values. Annual county-level on-site consumption of DPV-generated electricity is estimated by aggregating utility-reported net metering data to determine the amount of DPV-generated electricity sold back to the grid for each state, subtracting those values from modeled state-level DPV generation estimates, and allocating the results to counties according to each county's share of statewide modeled DPV generation.

The open-source Python code used to develop this dataset is available at "Historical Load Data Repository" link below. 

Tags: code, consumption, conus, county, data, demand, direct-use, distributed-pv, dpv, electricity, electricity-consumption, electricity-demand, electricity-profiles, energy, energy-profiles, grid-planning, modeling, planning, power, processed-data, python, retail-sales, united-states, weighted-averages
Organization: Department of Energy
Utah FORGE: Updated Discrete Fracture Network Model - 2025

The Utah FORGE 2025 v1 DFN (fracture model) includes 131 discrete planar fractures which were identified using combined site data sets to capture flow pathways between wells 16A(78)-32 and 16B(78)-32 following stimulation activities in 2022 and 2024. It also includes stochastic fractures (radius 20-150 m) away from well control. The DFN details fracture geometry such as position, orientation, and size, but does not address hydraulic properties like aperture, permeability, or compressibility, which may vary within each fracture plane. Further information and figures illustrating various fracture subsets are available in the accompanying notes document.

Tags: dfn, discrete-fracture-network, egs, energy, fracture, fracture-geometry, fracture-modelling, fracture-position, fracture-size, fractures, geothermal, orientation, planar-fractures, position, processed-data, reservoir-characterization, size, update, utah-forge, well-16a78-32, well-16b78-32
Organization: Department of Energy