Search Frequent Questions
Filter By:
- Air Emissions Inventories Total results: 34
- Asbestos Total results: 141
- Butte Area/Silver Bow Creek Total results: 17
- Coronavirus (COVID-19) Total results: 33
- East Palestine, Ohio Train Derailment Total results: 148
- Emergency Planning and Community Right-to-Know Total results: 301
- Fuel Program Total results: 693
- Great Lakes Funding Total results: 92
-
Lead
Total results: 398
- Applying for Certification or Accreditation Total results: 22
- EPA/HUD Real Estate Notification & Disclosure Rule Total results: 24
- General Information About Lead Total results: 9
- Lead-Based Paint Program Fees Total results: 9
- Lead Abatement, Risk Assessment and Inspection Total results: 49
- Lead at Superfund Sites Total results: 3
- Lead in Drinking Water Total results: 25
- Lead in Products Total results: 1
-
Lead Renovation, Repair and Painting
Total results: 237
- Enforcement and Inspections Total results: 5
- Authorized State and Tribal Programs Total results: 3
- Firm Certification Total results: 26
- General Information about the Lead Renovation, Repair, and Painting (RRP) Rule Total results: 18
- Information for Do-It-Yourselfers Total results: 1
- Lead-Safe Certified Firm Logo Total results: 8
- Pre-Renovation Education Total results: 26
- Recordkeeping and Reporting Requirements Total results: 6
- Renovations Covered by the RRP Rule Total results: 84
- Renovator Certification and Training Total results: 12
- Training Provider Accreditation Total results: 7
- Work Practice Standards Total results: 41
- Testing for Lead Total results: 19
- MOVES Total results: 57
- Norwood Landfill Site Total results: 30
- Oil Regulations Total results: 96
- Permitting Under the Clean Air Act Total results: 19
- Radiation Total results: 1
- Risk Management Program (RMP) Total results: 285
- Southeast Minnesota Groundwater Total results: 11
Active filters:
Remove all filtersDisplaying 1 - 15 of 40 results
-
Where can I download hourly emissions data from continuous monitoring?
Hourly emissions data files are available from the Clean Air Markets Division of EPA, collected as part of 40 CFR Part 75. The download location has changed in February, 2023. The new location is https://campd.epa.gov/data/bulk-data-files . Once on this new site, use the menu (at the left) and the Keyword…
- Last published:
-
Where can I find older NEI data (prior to 2008)?
The raw data and summaries that are still available (dating back to 1990) can be obtained from the web page https://www.epa.gov/air-emissions-inventories/pollutant-emissions-summary-files-earlier-neis . Starting with 2001 data, a more limited selection of summary files are available.
- Last published:
-
How do the different parts of particulate matter (PM) fit together?
The various parts of PM in the NEI are related as follows. PM10-FIL > PM25-FIL because PM10-FIL includes PM25-FIL PM25-PRI = PM25-FIL + PM-CON This equation only applies at the process level. Because some sources only can report PM2.5 (due to test method differences), this equation does not apply to…
- Last published:
-
How does PM2.5 relate to PM species such as EC, OC, SO4, NO3, PMFINE, and DIESEL-PM25?
Primary PM2.5 estimates are speciated into the five PM species in the NEI: elemental (black) carbon (EC), organic carbon (OC), nitrate (NO3), sulfate (SO4), and the remainder of PM25-PRI (PMFINE). Diesel engine PM25-PRI and PM10 emissions are also labeled as DIESEL-PM25 and DIESEL-PM10 for mobile source diesel engines. For all…
- Last published:
-
Does EPA’s announcement of June 18, 2010 modify the Lead Renovation Repair and Painting Rule’s requirements that contractors use lead-safe work practices when working in pre-1978 housing or child-occupied facilities?
Answer: This announcement does not change the requirement that all contractors take steps to protect children and families from the dangers of lead poisoning by becoming certified and following the work practice standards and the associated recordkeeping requirements. As of April 22, 2010 all contractors have been required to be…
- Last published:
-
How does the June 18, 2010 announcement impact renovators in states that have adopted their own RRP programs?
Answer: If you work in a state authorized by EPA to run their own renovation program, you should contact them for information on their certification requirements. If you work in a state where EPA administers the renovation program your firm needs to be certified by EPA. Please refer to the…
- Last published:
-
Thousands of renovators are already trained and their firms are EPA certified. Will EPA enforce against renovators who did not receive their training certification before December 31, 2010?
It is most important that all contractors follow the RRP work practice standards. However, EPA is providing additional time for renovation firms and workers to obtain the necessary training and certifications before the enforcement of the firm certification and individual renovator requirements begins. Therefore, renovators who have not been able…
- Last published:
-
How complete are the data in the National Emissions Inventory?
While the goal of the National Emissions Inventory (NEI) program is to include all emissions data, there are always challenges meeting this goal. The answer about completeness of coverage of sources depends on the emissions sector and pollutant. In general, the criteria air pollutants and precursors (CAPs) are expected to…
- Last published:
-
Where is more information available about emissions estimation methods used by the EPA?
For criteria air pollutants and precursors as well as for hazardous air pollutants, the methods are described in the technical support document (TSD) for the latest National Emissions Inventory (NEI) available from the main NEI page . For greenhouse gas emissions, you can find greenhouse gas inventory methods from the…
- Last published:
-
What sources make up the Tier 1 categories used in the emissions trends?
Tier 1 categories are assigned by source classification codes (SCCs) that are the most specific processes available in the NEI. The latest SCC list with the Tier 1 assignments can be downloaded from the EPA SCC website in Comma Separate Values (CSV) format.
- Last published:
-
What is the cause of the large decrease in electric utility emissions, particularly sulfur dioxide, starting in 1995?
SO2 emissions reductions from utilities during this time are primarily attributed to the impacts of the acid rain program. As described on EPA’s Acid Rain Program web page, Phase 1 of this program began in 1995 and affected 263 units at 110 most coal-burning electric utility plants in 21 eastern…
- Last published:
-
Can I get access to the Emissions Inventory System if I am not a data provider to EPA?
The Emission Inventory System (EIS) is a secured database for EPA and State/Local and Tribal Air Agencies only. The EIS is used to develop the National Emission Inventory (NEI). While you cannot have access to EIS, you can have access to the current and past NEIs through EPA’s NEI website…
- Last published:
-
Are biogenic emissions included in the emissions trends Tier 1 data?
No, the biogenic emissions are not included in the emissions trends Tier 1 data. If needed, users can add the biogenic data either as a separate Tier, or specify its inclusion in the “Miscellaneous” Tier 1 group.
- Last published:
-
How are emissions trends compiled?
For criteria air pollutants and precursors, the emissions trends are based on the triennial National Emissions Inventory data, with some interim year data included for non-triennial years. The methods and interim-year approaches are described on the “Development of Data” tab included with the data provided on the Air Pollutant Emissions…
- Last published:
-
What does an annual emissions value in the NEI represent (one year or multiple years)?
The NEI provides total annual emissions for a single year.
- Last published: