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Displaying 1 - 15 of 15 results
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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.
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A home sustained flooding as a result of a hurricane. Once the flood water recedes, my firm must make the necessary renovations. How do the record keeping requirements apply to an emergency renovation?
Emergency renovations (other than interim controls performed in response to a child with an elevated blood lead level) are exempt from the training, certification, sign posting, waste handling and containment requirements of the Lead Renovation, Repair and Painting (RRP) Rule only to the extent necessary to respond to the emergency…
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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.
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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…
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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.
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Does the RRP rule apply to contractors working on homes damaged by a hurricane or other natural disaster?
Damage from a major storm or other natural disaster could result in the need for emergency renovations. Certain requirements of the RRP Rule do not apply to emergency renovations, which are renovation activities that were not planned but result from a sudden, unexpected event that, if not immediately attended to…
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What sources make up the Sectors or Tiers used in the emissions data summaries?
Tier 1 and Sector 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 and Sector assignments can be downloaded from the EPA SCC website in Comma Separate Values (CSV) format.
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Where can I obtain the hourly data from Continuous Emissions Monitors (CEMs)?
The CEM emissions data are available from the EPA Clean Air Markets Program Data website.
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How can I get more detailed information? What measurements/sensors are used to measure emissions?
Access the latest NEI data set . Under 'Sector Summaries - Criteria and Hazardous Air Pollutants by 60 EIS emission sectors', > choose National > for Pollutant, choose PM10 Primary and/ or PM2.5-PRI > Sector, choose all sectors >Submit Query to see results at bottom of page. Open the results…
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Why do mobile source NOx emissions jump higher between 2001 and 2002 on the emissions trends?
The emissions model used for mobile sources changed from MOBILE6.2 to MOVES 2010 in December 2009. This change included a notable increase in NOx emissions. The EPA adjusted data back to 2002 to reflect the change in models. The higher emissions in 2002 are because of this method change and…
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Why do the PM2.5 emissions for the electric utilities source category jump up between 1998 and 1999?
The estimation method for PM emissions from fuel combustion sources was enhanced beginning with the 1999 National Emissions Inventory. Prior to 1999, the emissions measurement data methodology only included the filterable portion (which means the solid particle matter at elevated stack temperatures). Beginning with the 1999 NEI, both the filterable…
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How do I know if a child has an Elevated Blood Level (EBL) prior to my work if he or she hasn't had their blood lead tested recently?
Answer: It is never the renovation firm’s responsibility to determine whether a child has an elevated blood lead (EBL) level. Question Number: 23002-16822 Find a printable PDF copy of all frequent questions pertaining to lead .
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According to your guidelines emergency projects are exempt from some requirements to the extent necessary to respond to the emergency. Does this mean that my firm does not need to be certified and my company doesn't need a certified renovator?
Question : My company only does emergency renovation work. According to your guidelines emergency projects are exempt from the warning sign, containment, waste handling, training, and certification requirements to the extent necessary to respond to the emergency. Emergency renovations are NOT exempt from the cleaning and cleaning verification requirements. Does…
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What is an "emergency renovation" for purposes of the Lead Renovation, Repair and Painting (RRP) Rule?
Emergency renovations are those performed in response to situations necessitating immediate action to address safety or public health hazards or threats of significant damage to equipment and/or property. The need for immediate action relieves firms from the pre-renovation education requirements. Likewise, emergency renovations are exempt from the warning sign, containment…
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Where can I get maps and/or emissions of facility emissions data?
The EPA provides emissions maps in two ways. First, each of the last three NEI years have a “Facility Mapping” tab available on the main NEI page for that inventory year (for example, see the 2020 NEI page). With this tool, maps can be created for one state at a…
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