PROTECTING MICHIGAN'S AIR
EGLE ensures that Michigan's air remains clean by regulating sources of air pollutants to minimize adverse impact on human health and the environment. Goals are to meet and maintain air quality standards, limit emissions of hazardous and toxic pollutants, and inform the public about current air conditions.
COVID-19 UPDATE
The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has closed its Central and District offices to help mitigate the spread of COVID-19. However, EGLE staff continue to work to provide essential services. The Air Quality Division has developed guidance to assist the regulated community in continuing to meet their air quality obligations and submit necessary information in a timely manner.
News & Info
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Announcements
- Community Update Meeting: Update on Air Quality Investigation at Stellantis - Detroit Assembly Complex (January 27, 2022)
- Registration Now Open for the Introduction to the Michigan Air Emissions Reporting System (MAERS) 2022 Webinar Series
- Justice Department, EPA, and the State of Michigan Reach Clean Air Act Settlement with Arbor Hills Energy, LLC
Public Notice
State Air Laws and Rules
- Part 2 Exemptions, Rules 278 - 291
- LARA - Michigan Office of Administrative Hearings and Rules (MOAHR)
- AQD Policy and Procedures
- Open Burning Information
- Greenhouse Gas Emissions Regulations and Permitting
- Overview of Air Toxic Rules
- Dry Cleaning Establishment Rules
- Air Pollution Control Rules
- Contact Information for Air Laws and Rules
- Air Pollution Laws
Other Air Regulations of Interest
Federal Air Laws
Air Toxics Laws & Rules
- Air Pollution Control Rules
- Toxic Air Contaminants - Instructions for Demonstrating Compliance with Rule 225
- Toxic Air Contaminants (TAC) Rule 227 Spreadsheet for Demonstrating Compliance with Rule 225
- Overview of Michigan's Air Toxic Rules
- USEPA's CAAA List of Hazardous Air Pollutant Chemicals (HAPs)
- EPA MACT Standards Status and Links
Compliance
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Air Quality Compliance
The Air Quality Division regulates complex industrial processes emitting air pollutants. With regulations for these industries being equally complex, having access to compliance assistance resources is important. This page contains links to all Air Quality Division programs as well as to a variety of resources designed to help the regulated community.
Air Quality Programs
- Permits (PTI / NSR) Public Notice
- Reporting Agricultural Air Quality Concerns
- Supplemental Environmental Projects
- Air Quality Division Delegations
- Enforcement Program
- Clean Air Assistance Program
- Michigan Guide to Environmental, Health, and Safety Regulations
- Conferences, Workshops, Webinars
- USEPA Region 5 Office of Air and Radiation
- USEPA Air Quality Links
- Clean Air Ombudsman
- Facility-Specific Information
Violation Notices (VNs), Responses to VNs, Enforcement Documents, Inspection Reports, Stack Tests, Etc.
Training and Assistance
Compliance Resources by Topic
- Air Pollution Control Tax Exemptions
- Air Quality Requirements for Hospitals
- Air Quality Source Information
- Aluminum, Copper, and Other Non-Ferrous Foundry Area Sources
- Anhydrous Ammonia
- Boiler NESHAP - MACT & GACT for Major and Area Sources
- Boilers - NSPS
- Consumer Product Rules
- Dust and Fallout
- Electric Arc Furnace Steelmaking Area Sources
- Engine Guidance
- Fluorescent Light Bulb Crushers
- Food Manufacturing Facilities
- Landfill Guidance, Subpart AAAA
- Lithographic Printers
- Metal Fabrication and Finishing Area Source NESHAP
- Metal Finishing Industry
- National Emission Standards for Hazardous Air Pollutants (NESHAP): Iron and Steel Foundry Area Sources
- National Emissions Standards for Hazardous Air Pollutants (NESHAP): Gasoline Dispensing Facilities at Area Sources
- Nonmetallic Mineral Crushing Facilities Guidance
- Oil and Gas Industry
- Oil and Gas PTE Declaration Form
- Open Burning Information
- Paint Stripping and Miscellaneous Surface Coating Operations at Area Sources
- Renewable Operating Permit (ROP) Program Information
- Solvent Degreasing
- Surface Coating Operations
- Surface Coating of Miscellaneous Metal Parts and Products NESHAP
- Surface Coating of Plastic Parts and Products NESHAP
- Wood Furniture Manufacturing
- Woodburning & Air Quality
Emissions
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Michigan Air Emissions Reporting System: MAERS
The federal Clean Air Act requires that each state maintain an inventory of air pollution emissions for certain facilities and update this inventory every year. Michigan's emission inventory is collected annually using MAERS.Each year, approximately 2,000 facilities report emissions to MAERS. Emissions data is submitted to the United States Environmental Protection Agency (USEPA) to be added to the national data bank. This information is used to track air pollution trends, determine the effectiveness of current air pollution control programs, serve as a basis for future year projections of air quality, track source compliance, provide information for permit review, and calculate the emissions portion of the air quality fee.
Annual Emissions Fees
Need Help with MAERS?
- MAERS 4 Part Webinar Series
- Environmental Assistance Center,
800-662-9278 - InfoMAERS@michigan.gov,
517-285-6700 - AQD District Offices
Emission Inventory Data
Forms
- Electronic Signature Agreement
- Electronic Signature Agreement (MS Word Template)
- MAERS Forms and Instructions
- ROP Certification Form (MS Word Template)
- ROP Certification Form Instructions
Laws and Rules
- AQD Policy and Procedure AQD-013
- Rule 119(e): Definition of Significant
- Rule 202: Waivers of Approval
- Rule 212(7): ROP Source Fee Calculations
- Rule 278: Exclusion from Exemption
- Rule 279 through 290: Exemptions
- Rule 281(2)(h): Cold Cleaner Exemption
- Rule 282(2)(b): Furnace, Oven and Heater Exemption
- Rule 285(2)(r)(iv): Cleaning Exemption
Need Help with MAERS?
Tools and Resources
- Calculating Coating Weighted Percent VOC & Density
- Calculating Multi-Part Coating Percent VOC & Density
- Emissions Calculations Fact Sheet for Coating
- General Information
- HAPs Emission Calculator Guidance
- MAERS Emission Estimator
- MAERS Reference Tables
- North American Industry Classification System (NAICS)
- USEPA WebFIRE
Permits
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Permits
- Air Quality Division Permits
- Permits to Install (PTI) / New Source Review (NSR)
- Permits (PTI / NSR) Public Notice
- Renewable Operating Permits (ROP) / Title V
- ROP Public Notice Documents
- Acid Rain Permits (Title IV)
- Cross-State Air Pollution Rule (CSAPR)
- Acid Rain Permit Public Notice Documents
- MACT Determinations
- Permit Applications of Interest
Modeling and Meteorology
- Modeling and Meteorology Program
- Meteorological Data
- Prevention of Significant Deterioration Baseline Dates
- USEPA Support Center for Regulatory Air Models
- Dispersion Modeling Guidance for Federally Regulated Pollutants
- Air Quality Forecast
- Ambient Backgrounds
- Air Quality Modeling Guidance Documents
- Preferred / Recommended Air Quality Models
Air Toxics Screening Levels
- Air Toxics Screening Levels Justifications & Public Notice Information
- Air Toxics Screening Level Query
- Toxics Screening Level Query Footnotes
- Air Toxics Screening Levels Contact Information
- Toxics ITSL/IRSL Excel Spreadsheet
- Toxics ITSL/IRSL Access Database
- Screening Level List (Sorted by CAS No.)
- Screening Level List (Alphabetical)
- Chemicals Under Review
Air Toxics Laws and Rules
- Air Pollution Control Rules
- Toxic Air Contaminants - Instructions for Demonstrating Compliance with Rule 225
- Toxic Air Contaminants (TAC) Rule 227 Spreadsheet for Demonstrating Compliance with Rule 225
- Overview of Michigan's Air Toxic Rules
- USEPA's CAAA List of Hazardous Air Pollutant Chemicals (HAPs)
- EPA MACT Standards Status and Links
Other Air Toxics Websites
Monitoring
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Air Monitoring Information
This network consists of meteorological, gaseous, particle and air toxics monitors mandated by the USEPA in 40 CFR, Part 58 as part of the Michigan State Implementation Plan (SIP).
The data from these monitors are used to demonstrate attainment with the National Ambient Air Quality Standards (NAAQS), to provide the public with real-time air quality measurements, track air quality trends and to assist in the development of air pollution abatement strategies.
What air monitoring is EGLE doing near me? Check out our interactive Air Monitoring Sites web map to find out more.
Special Monitoring Projects
How's my air quality?
- Real-Time Air Quality Information
- Past Air Quality Action Days
- Get Notified! (Sign up for air quality notifications.)
- EPA's Air Now - Air Quality Index
Monitoring Data Summaries
- CO: 1-Hour - Michigan (2005 to 2020)
- CO: 8-Hour - Michigan (2005 to 2020)
- Lead: 3-Month Averages - All Sites (2010 to 2020)
- NOx: 1-Hour - Michigan (2005 to 2020)
- NOx: Annual Averages - Michigan (2005 to 2020)
- Ozone: Design Values (2018 to 2020) & Max Allowed (2021)
- Ozone: 8-Hour All Sites (1992 to 2020)
- Ozone: 8-Hour All Sites - current year (2021)
- Ozone: 8-Hour Per Year & 3-Year Averages (2005 to 2020)
- PM2.5: 24-Hour - Michigan (2005 to 2020)
- PM2.5: Annual - Michigan (2005 to 2020)
- SO2: Design Value Table (2018 to 2020)
- SO2: 1-Hour - All Sites (2021)
- SO2: 1-Hour Per Year & 3-Year Averages (2005 to 2020)
Annual Air Quality Reports
- 2020 Air Quality Report
- 2019 Air Quality Report
- 2018 Air Quality Report
- 2017 Errata for Table 6.1 & Appendix A
- 2017 Air Quality Report
- 2016 Addendum for Appendix B-2
- 2016 Air Quality Report
- 2015 Air Quality Report
- 2014 Air Quality Report
- 2013 Air Quality Report
- 2012 Errata for Appendix B-1
- 2012 Air Quality Report
Annual Ambient Air Monitoring Reviews
Other Monitoring Reports
- Evaluation of Near-Road Air Pollution at Environmental Justice (EJ) and Non-EJ Communities in the Greater Detroit Area
- Final Southeast Michigan Manganese Report 2012
- Final Grand Haven Wood Smoke Report 2013
- Final Owosso Wood Smoke Report 2012
- AQI Statistics by Michigan CBSA 2001 to 2013
- Contact Information for Ambient Monitoring
Air Toxics Information
SIP & Attainment
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State Implementation Plan (SIP) & Attainment
States are responsible for developing plans and implementing programs to meet and maintain National Ambient Air Quality Standards (NAAQS). Areas that meet the national ambient air quality standard are considered to be in "attainment" while areas in which air pollution levels persistently exceed ambient air quality standards may be designated "nonattainment." When NAAQS are tightened to better protect public health, some areas previously considered attainment may be designated to nonattainment even though monitoring shows that air quality continues to improve.
- General SIP Information and Helpful Links to Other Resources
- Programs (CSAPR, Greenhouse Gases, State Plans, Conformity, etc.)
- Attainment Status Map
Information by Pollutant
