AndreaBozzo/ceres-open-data-index huggingface dataset:
Maryland Ozone Exceedance Days in 2004

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 can cause health effects including increased asthma attacks and other respiratory effects. You can get more information about the health effects at http://www.epa.gov/air/ozonepollution/. This data set details which monitoring locations in Maryland exceeded the standard during the year and the maximum concentrations on the dates the standard was exceeded. More information on Maryland's air quality monitoring is available at http://www.mde.state.md.us/programs/Air/AirQualityMonitoring/Pages/index.aspx.
Maryland Ozone Exceedance Days in 2003

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 can cause health effects including increased asthma attacks and other respiratory effects. You can get more information about the health effects at http://www.epa.gov/air/ozonepollution/. This data set details which monitoring locations in Maryland exceeded the standard during the year and the maximum concentrations on the dates the standard was exceeded. More information on Maryland's air quality monitoring is available at http://www.mde.state.md.us/programs/Air/AirQualityMonitoring/Pages/index.aspx.
Maryland Ozone Exceedance Days 2016-2021

Maryland 8-Hour Ozone Concentrations Exceeding 2015 Health-Based Standard in ppb, Finalized Data. In 2015 EPA set the ozone standard to 70 ppb. High levels of ozone can cause health effects including increased asthma attacks and other respiratory effects. You can get more information about the health effects at http://www.epa.gov/air/ozonepollution/. This data set details which monitoring locations in Maryland exceeded the standard between 2016 and 2021 and the maximum concentrations on the dates the standard was exceeded. More information on Maryland's air quality monitoring is available at http://www.mde.state.md.us/programs/Air/AirQualityMonitoring/Pages/index.aspx.
Maryland Operating Budget - Funding Source

PLEASE READ THIS DATASET DESCRIPTION IN FULL BEFORE EXPORTING ANY DATA. This dataset, specific to funding by funding sources, shows operating budget in these categories by fiscal year. Maryland's FY2017-2024 operating budget (Actual Expenditures), FY2025 operating budget (Working), and FY2026 operating budget (Governor's Allowance). The data for each FY should be considered in the state listed above. Data are provided by DBM to the Department of Information Technology (DoIT), which uploads and maintains this dataset. Please note that this dataset is subject to change as new data become available from DBM. Therefore, DBM and DoIT can make no guarantee that the data in this dataset are fully accurate or complete. By accessing this dataset, or by accessing this dataset's metadata, you acknowledge that DBM and DoIT do not guarantee the accuracy nor the completeness of the dataset. Additional documents on Maryland Operating Budgets are available at http://dbm.maryland.gov/budget/Pages/operbudhome.aspx
Maryland Operating Budget: CUR and CR

PLEASE READ THIS DATASET DESCRIPTION IN FULL BEFORE EXPORTING ANY DATA. This dataset, specific to funding for higher education institutions, shows Maryland's FY2017-FY2024 operating budget (actual expenditures), FY2025 operating budget (working), and FY2026 operating budget (Governor's Allowance). The data for each FY should be considered in the state listed above. Data are provided by DBM to the Department of Information Technology (DoIT), which uploads and maintains this dataset. Please note that this dataset is subject to change as new data become available from DBM. Therefore, DBM and DoIT can make no guarantee that the data in this dataset are fully accurate or complete. By accessing this dataset, or by accessing this dataset's metadata, you acknowledge that DBM and DoIT do not guarantee the accuracy nor the completeness of the dataset. Additional documents on Maryland Operating Budgets are available at http://dbm.maryland.gov/budget/Pages/operbudhome.aspx
Maryland OEDs 2013

Maryland 8-Hour Ozone Concentrations Exceeding 2008 Health-Based Standard in ppb, Preliminary Data. In 2008 EPA set the ozone standard to 75 ppb. High levels of ozone can cause health effects including increased asthma attacks and other respiratory effects. You can get more information about the health effects at http://www.epa.gov/air/ozonepollution/. This data set details which monitoring locations in Maryland exceeded the standard during the year and the maximum concentrations on the dates the standard was exceeded. More information on Maryland's air quality monitoring is available at http://www.mde.state.md.us/programs/Air/AirQualityMonitoring/Pages/index.aspx.
Maryland OEDs 2012

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 can cause health effects including increased asthma attacks and other respiratory effects. You can get more information about the health effects at http://www.epa.gov/air/ozonepollution/. This data set details which monitoring locations in Maryland exceeded the standard during the year and the maximum concentrations on the dates the standard was exceeded. More information on Maryland's air quality monitoring is available at http://www.mde.state.md.us/programs/Air/AirQualityMonitoring/Pages/index.aspx.
Maryland Notices of Intent to Foreclose by Zip Code

Provides monthly total number of Maryland Notices of Intent to Foreclose (NOI) by zip code as reported to the Office of Financial Regulation (OFR). For more information and definitions, please see OFR's Foreclosure Data Tracker: https://www.labor.maryland.gov/finance/consumers/frforeclosuredatatracker.shtml. NOTE: The data provided is for informational and research purposes only and is not intended to guide policy or provide specific outreach targets. The data provided is compiled from third-party filings with the Office of Financial Regulation (OFR) pursuant to applicable law. These third-party filings may contain duplicates and other errors and the OFR cannot guarantee the accuracy and quality of the submissions upon which the data is based. The data does not constitute foreclosure case records and may differ from the official foreclosure records contained in the court records of the State of Maryland. OFR makes no express or implied warranties or representations concerning the data contained in this report.
Maryland Notices of Intent to Foreclose by Census Tract

Provides the annual total number of Maryland Notices of Intent to Foreclose (NOI) by census tract as reported to the Office of Financial Regulation (OFR). For more information and definitions, please see OFR's Foreclosure Data Tracker: https://www.labor.maryland.gov/finance/consumers/frforeclosuredatatracker.shtml. NOTE: The data provided is for informational and research purposes only and is not intended to guide policy or provide specific outreach targets. The data provided is compiled from third-party filings with the OFR pursuant to applicable law. These third-party filings may contain duplicates and other errors and the OFR cannot guarantee the accuracy and quality of the submissions upon which the data is based. The data does not constitute foreclosure case records and may differ from the official foreclosure records contained in the court records of the State of Maryland. In addition, errors in reported street addresses mean that some NOIs are not able to be matched with a census tract. This may result in a different total number of annual NOIs than the total number in other related reports. OFR makes no express or implied warranties or representations concerning the data contained in this report. Blank values indicate census tracts with fewer than 10 NOIs.
Maryland Operating Budget (current)

PLEASE READ THIS DATASET DESCRIPTION IN FULL BEFORE EXPORTING ANY DATA. This dataset, shows operating budget in these categories by fiscal year. Maryland's operating budget. The data for each FY should be considered in the state listed Governor's Allowance, Legislative Appropriation, or Working Budget. This data is used as a part of the Maryland Transparency Portal at https://mtp.maryland.gov Data are provided by DBM to the Department of Information Technology (DoIT), which uploads and maintains this dataset. Please note that this dataset is subject to change as new data become available from DBM. Therefore, DBM and DoIT can make no guarantee that the data in this dataset are fully accurate or complete. By accessing this dataset, or by accessing this dataset's metadata, you acknowledge that DBM and DoIT do not guarantee the accuracy nor the completeness of the dataset. Additional documents on Maryland Operating Budgets are available at http://dbm.maryland.gov/budget/Pages/operbudhome.aspx
Maryland Net Natural Change (Births Minus Deaths): 2020-2024

Net Natural Change (Births Minus Deaths) in Maryland and Jurisdictions reflects annual revision to the entire time series beginning on April 1, 2020 (Estimate base) to July 1 of the current year (referred to as the "vintage" year, or V2024). Each time series incorporates the latest administrative record data, geographic boundary changes, and methodology. Source: U.S. Census Bureau's Population Estimates Program.
Maryland_Naval_Research_Lab_Radar_Areas

The Naval Research Laboratory areas of radar concerns. Radars locate an object’s position by emitting electromagnetic waves that reflect off objects, such as planes, birds, and mountains, and are returned to the radar. The electromagnetic waves that are returned to the radar provide the information needed to calculate an estimated size, location, speed, and direction of an object. The radar viewshed, or field of view, is the area that is within range of a radar’s electromagnetic waves. The range of the viewshed is influenced by multiple factors, including the radar’s look angle, terrain, weather, as well as natural and manmade objects. Natural and man-made structures within a radar’s field of view can limit the range of the viewshed by blocking electromagnetic waves, which impacts the integrity and usefulness of a radar in identifying and locating aircraft, watercraft, weather, or other objects such as missiles. Additionally, other electromagnetic activity, such as radio waves or microwaves, in the vicinity of a radar transmitter and/or receiver (typically within 8 to 10 miles) can interfere with the electromagnetic waves emitted by the radar. One of the most crucial components within the radar viewshed is the line-of-sight, which is the linear path between the transmitter and receiver (when not the same antenna). An obstruction to this linear path can result in loss communication signals between the transmitter and receiver rendering the radar ineffective. Feature Link: https://mdgeodata.md.gov/imap/rest/services/Military/MD_Military_SmartDG/MapServer/9
Maryland Mortgage (Single Family Loans) FY 2011-2025

The Maryland Mortgage Program provides help in the form of Down Payment Assistance, as well as a range of Partner Match programs from employers, developers and community organizations that can help you cover these down payment and closing costs. These programs may make it possible for first-time homebuyers to afford a mortgage when they would not be able to do so the conventional way. DISCLAIMER: Some of the information may be tied to the Department’s bond funded loan programs and should not be relied upon in making an investment decision. The Department provides comprehensive quarterly and annual financial information and operating data regarding its bonds and bond funded loan programs, all of which is posted on the publicly-accessible Electronic Municipal Market Access system website (commonly known as EMMA) that is maintained by the Municipal Securities Rulemaking Board, and on the Department’s website under Investor Information. More information accessible here: http://dhcd.maryland.gov/Investors/Pages/default.aspx
Maryland_Military_Training_Route_500___Above

Aerial corridors in which military aircraft are permitted to fly faster than 250 knots (about 285 mph) and under 10,000 ft. Routes are divided into visual rules (VR) and instrument rules (IR, at night and in poor weather conditions). This layer contains military training routes (MTR) with a floor elevation of up to and including 500 ft. This layer is a member of the "Military" feature dataset, which contains layers related to military installations and flight training areas in the state of Maryland. Data source: Military Aviation and Installation Assurance Siting Clearinghouse website (https://www.acq.osd.mil/dodsc/about/maps.html) Last updated: between 8/15/2019 and 9/11/2019 (Cycle 1909) Recommended data update schedule: yearly Contacts sources: websites for the military installation to which each MTR belongs. Recommended to check for updates when checking for new MTR data, approximately yearly. Feature Link: https://mdgeodata.md.gov/imap/rest/services/Military/MD_Military_SmartDG/MapServer/14
Maryland_Potomac_River_Range

Military testing areas include firing and bombing ranges where the DoD tests weapons systems and equipment, which include releasing ordnance and other projectiles from aircraft, watercraft, as well as from land-based artillery. These areas can be particularly hazardous for development as some weapons systems and ordnance being tested can contain live ammunition and explosives. Feature Link: https://mdgeodata.md.gov/imap/rest/services/Military/MD_Military_SmartDG/MapServer/6
Maryland_Military_Training_Route_1_500___Above

Aerial corridors in which military aircraft are permitted to fly faster than 250 knots (about 285 mph) and under 10,000 ft. Routes are divided into visual rules (VR) and instrument rules (IR, at night and in poor weather conditions). This layer contains military training routes (MTR) with a floor elevation of up to and including 500 ft. This layer is a member of the "Military" feature dataset, which contains layers related to military installations and flight training areas in the state of Maryland. Data source: Military Aviation and Installation Assurance Siting Clearinghouse website (https://www.acq.osd.mil/dodsc/about/maps.html) Last updated: between 8/15/2019 and 9/11/2019 (Cycle 1909) Recommended data update schedule: yearly Contacts sources: websites for the military installation to which each MTR belongs. Recommended to check for updates when checking for new MTR data, approximately yearly. Feature Link: https://mdgeodata.md.gov/imap/rest/services/Military/MD_Military_SmartDG/MapServer/13
Maryland Inventory of Historic Properties

The Maryland Inventory of Historic Properties is a research and documentation instrument that serves as an archive of information to further the understanding of the State’s architectural, archaeological, and cultural resources. To date, the MIHP is comprised of nearly 90,000 resources, composed of archaeological sites, building, structures, objects and survey districts. A Maryland Inventory form provides a description of historic resource and discusses its history, but the MIHP is not a regulatory instrument, and the determination of a resource’s historic significance is not a requirement for inclusion. Maryland State law provides elsewhere for mechanisms – separate from the MIHP – giving both the State and local jurisdictions the authority to regulate appropriately designated historic resources. The Maryland Inventory should not be confused with the National Register of Historic Places, the Maryland Register of Historic Properties, or local lists of locally designated historic resources, although resources listed in all of the above categories are included in the Maryland Inventory. For more information see https://mht.maryland.gov/Pages/research/mihp-description.aspx. Last Updated: 11/12/2025
Maryland_Installation_Coordination_Buffer_

This geospatial dataset contains the authoritative point locations and (where available) boundaries of Department of Defense sites, commonly referred to as installations, ranges, training areas, bases, forts, camps, armories, centers, etc. These installations are, in many cases, comprised of a number of subordinate sites. This list does not necessarily represent a comprehensive collection of all Department of Defense facilities. Points are placed either at or near the center of each site and do not reflect any particular landmark. Boundaries encompass federally owned or otherwise managed lands, as defined in the Fiscal Year 2019 Base Structure Report (BSR). The point and boundary location datasets are intended for planning purposes only, and do not necessarily represent the legal or surveyed land parcel boundaries. Please use the accompanying release notes to validate whether this dataset is suitable for your intended use. Feature Link: https://mdgeodata.md.gov/imap/rest/services/Military/MD_Military_SmartDG/MapServer/15
Maryland Housing Rehab Special Loans Program FY 2011-2025

The Special Loans Program rehabilitates homes of moderate income Maryland homeowners across the state in cooperation with the Local Government agencies. Types of rehabilitation include accessibility modifications for senior and disabled occupants, bringing electrical and/or plumbing systems to state and local codes, making roof and structural repairs, and in exceptional cases replacing an uninhabitable dwelling with a modest living structure. DISCLAIMER: Some of the information may be tied to the Department’s bond funded loan programs and should not be relied upon in making an investment decision. The Department provides comprehensive quarterly and annual financial information and operating data regarding its bonds and bond funded loan programs, all of which is posted on the publicly-accessible Electronic Municipal Market Access system website (commonly known as EMMA) that is maintained by the Municipal Securities Rulemaking Board, and on the Department’s website under Investor Information. More information accessible here: http://dhcd.maryland.gov/Investors/Pages/default.aspx
Maryland_Helicopter_Operations

Joint Base Andrews conducts low-level helicopter training operations across areas in southern Maryland and northern Maryland including along the Potomac River.There are three separate low-level flight areas associated with training at NAS Patuxent River, two of which are in Maryland – East Helicopter Operating Area and West Helicopter Operating Area. Both low-level flight areas cover a broad area of land across Calvert County, Dorchester County, St. Mary’s County, and Wicomico County in which NAS Patuxent River conducts low-level flight training operations with rotary-wing and some fixedwing aircraft.Some military flight training is conducted at altitudes below 10,000 feet above mean sea level, and sometimes even below 200 feet AGL. For example, nap-of-the-earth training exercises include aircraft flying just above ground level or tree line using terrain-following sensors to avoid radar detection. Due to the low altitudes and speeds of the aircraft, these training missions are conducted within designed low-level flight areas to avoid collisions with civilian aircraft. However, the development of tall structures can interfere with and create hazards for aircraft conducting low-level flight training.
Maryland_Installation

The Department of Information Technology (DoIT) has identified military installations within the State of Maryland. These facilities offer jobs for military personnel living in and around the installations, as well as, opportunities for public/private partnerships which benefit the citizens of Maryland. In addition, these installations are used in emergency management and response and are partners with the State of Maryland during emergency situations. This is a MD iMAP hosted service layer. Find more information at https://imap.maryland.gov. Feature Service Layer Link: https://mdgeodata.md.gov/imap/rest/services/Military/MD_MilitaryInstallations/FeatureServer/0
Maryland Foreclosure Notice Data by County

Provides monthly totals of Notices of Intent (NOI), Notices of Foreclosure (NOF), and Foreclosure Property Registrations (FPR) for Maryland Counties as reported to the Office of Financial Regulation (OFR). For additional information and definitions, please see the OFR's Foreclosure Data Tracker: https://www.labor.maryland.gov/finance/consumers/frforeclosuredatatracker.shtml. NOTE: The data provided is for informational and research purposes only and is not intended to guide policy or provide specific outreach targets. The data provided is compiled from third-party filings with the Office of Financial Regulation (OFR) pursuant to applicable law. These third-party filings may contain duplicates and other errors and the OFR cannot guarantee the accuracy and quality of the submissions upon which the data is based. The data does not constitute foreclosure case records and may differ from the official foreclosure records contained in the court records of the State of Maryland. OFR makes no express or implied warranties or representations concerning the data contained in this report.
Maryland Domestic Migration: 2020-2024

Total domestic migration for Maryland and its jurisdictions are derived from the U.S. Census Bureau’s Population Estimates Program. These estimates reflect revisions to the entire time series, beginning with the estimate base of April 1, 2020, through July 1 of the current year (referred to as the 'vintage year,' or V2024). Each time series incorporates updated administrative records, geographic boundary changes, and methodological improvements. This data is updated annually. Source: U.S. Census Bureau, Population Estimates Program
Maryland Department of the Environment - Public Notice

This tool makes it easier to explore environmental permits that may affect your area. It includes applications for projects regulated under state law, such as landfills, incinerators, industrial and municipal water discharges, sewage sludge use, and the handling of hazardous substances. You can use the tool to find proposed projects near you, check the status of applications, see upcoming public meetings or hearings, and learn how to get involved in the review process by submitting comments or attending hearings. If you need help or can’t find what you’re looking for, call us at 410-537-3000.
Maryland Correctional Enterprises: Employees, Wait Lists, Business Units, Staff Members, Work Orders, and Revenues

This dataset shows all data which Maryland Correctional Enterprises reported from May 2007 through July 2015. After which time the Performance Improvement Office asked the Dept of Public Safety and Corrections (DPSCS) to stop reporting it because there was plenty of historical data and marginal utility in continuing to report in on the Portal unless they have a need to. DPSCS will start reporting on it again if there is demand for updated data.
Maryland Coastal Zone

The Maryland coastal zone is comprised of the land, water and subaqueous land between the territorial limits of Maryland in the Chesapeake Bay, Atlantic Coastal Bays and the Atlantic Ocean, as well as the towns, cities and counties that contain and help govern the thousands of miles of Maryland shoreline. The Maryland coastal zone extends from three miles out in the Atlantic Ocean to the inland boundaries of the 16 counties and Baltimore City that border the Atlantic Ocean, Chesapeake Bay and the Potomac River up to the District of Columbia. This area encompasses two-thirds of the States land area and is home to almost 70% of Marylands residents.