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Preventing airborne releases
The Community Contaminant Prevention – Airborne Releases credit appears in the LEED for Healthcare 2009 Rating System. Public feedback suggested that this credit be made available for other building types in addition to Healthcare.
Credit Submittals
General
- Register for Pilot Credit(s) here.
- Register a username at LEEDuser.com, and participate in online forum
- Submit feedback survey; supply PDF of your survey/confirmation of completion with credit documentation
Credit Specific
Fill out the offline version of the LEED for Healthcare 2009 form for this credit, available at:
https://www.usgbc.org/ShowFile.aspx?DocumentID=10315
Submit this form as part of the project submission for this pilot credit.
Additional Questions
- Should this credit be available to projects types other than Healthcare, and which types?
USGBC
Excerpted from LEED 2009 for Core and Shell Development
COPYRIGHT © 2009 BY THE U.S. GREEN BUILDING COUNCIL, INC. ALL RIGHTS RESERVEDEA Pilot Credit 66: Community contaminant prevention - airborne releases
Intent
To prevent contaminant releases to air from products of combustion.
Requirements
Meet California South Coast Air Quality Management District standards for all products of combustion. Do not exceed the emission limits below for products of combustion, as outlined in the following California South Coast Air Quality Management District Rules:
- (Amended February 1, 2008), Emissions from Gaseous- and Liquid-Fueled
Internal Combustion Engines
- 1111 (Amended July 8, 1983), NOx Emissions from Natural-Gas-Fired, FanType Central Furnaces
- 1121 (Amended September 3, 2004) Control of Nitrogen Oxides from Residential Type, Natural Gas-Fired Water Heaters
- 1146 (Amended November 17, 2000), Emissions of Oxides of Nitrogen from Industrial, Institutional, and Commercial Boilers, Steam Generators, and Process Heaters
- 1146.1 (Amended May 13, 1994), Emissions of Oxides of Nitrogen from Small Industrial, Institutional, and Commercial Boilers, Steam Generators, and Process Heaters
- 1146.2 (Amended May 5, 2006), Emissions of Oxides of Nitrogen from Large Water Heaters and Small Boilers and Process Heaters
Equipment Types Oxides of Nitrogen (NOx) Volatile Organic Compounds (VOCsA volatile organic compounds (VOCs) is a carbon compound that vaporizes (becomes a gas) at normal room temperatures. VOCs contribute to air pollution directly and through atmospheric photochemical reactions (excluding carbon monoxide, carbon dioxide, carbonic acid, metallic carbides and carbonates, and ammonium carbonate) to produce secondary air pollutants, principally ozone and peroxyacetyl nitrate.) Carbon Monoxide (CO) Gaseous and Liquid-Fueled Stationary Engines – Emergency or Standby Power Uses 111ppm 301,2ppm 701ppm Gaseous and Liquid-Fueled Stationary Engines –
Non-Emergency and Non-Standby Power Uses50.070 lbs/MW-hr3 0.10 lbs/MW-hr4 0.20 lbs/MW-hr3 Landfill and Digestor Gas-Fired Stationary Engines bhp>500: ppm = 36 x ECF1,6 Landfill Gas: 401,2
Digestor Gas: 250 x ECF1,2,62,000 ppm1 Natural-Gas-Fired, Fan-Type Central Furnaces (heating only with input rate less than 175,000 BTUH, or heating and cooling with cooling rate of less than 65,000 BTUH) 40 nanograms (calculated as NO2) per joule of useful heat delivered to the heated space Residential Type, Natural Gas-Fired Water Heaters 15 ppm7 or 10 nanograms (calculated as NO2) per joule of heat output Boilers, Steam Generators, Water Heaters, and Process Heaters
(rated heat input capacity less than or equal to 400,000 BTU per hour)55 ppm7 or 40 nanograms (calculated as NO2) per joule of heat output Boilers, Steam Generators, Water Heaters and Process Heaters rated heat input capacity greater than 400,000 BTU per hour and less than or equal to 2,000,000 BTU per hour) 20 ppm7 or 40 nanograms (calculated as NO2) per joule of heat output 400 ppm Boilers, Steam Generators, Water Heaters, and Process Heaters
(rated heat input capacity greater than 2,000,000 BTU per hour and less than 5,000,000 BTU per hour)30 ppm7 or 0.037 pounds per million BTU of heat input 400 ppm7 Boilers, Steam Generators, Water Heaters, and Process Heaters
(rated heat input capacity greater than or equal to 5,000,000 BTU per hour)8,930 ppm7 or 0.036 pounds per million BTU of heat input 400 ppm7 Notes: - Parts per million by volume, corrected to 15% oxygen on a dry basis and averaged over 15 minutes.
- Measured as carbon.
- The averaging time of the emission standards is 15 minutes.
- Mass emissions of VOC shall be calculated using a ratio of 16.04 pounds of VOC per lb-mole of carbon.
- Emissions limits shall be subject to adjustment for engines that produce combined heat and electrical power (see Rule 1110.2)
- ECF is the efficiency correction factor.
- Parts per million by volume, corrected to 3% oxygen on a dry basis.
- Capacity Factor greater than 25%.
- Units with a heat input capacity greater than 40 million BTU per hour and an annual heat input greater than 200 x 109 BTU per year shall have a continuous in-stack nitrogen oxides monitor or equivalent verification system in compliance with 40 CFR part 60 Appendix B Specification 2.
For engines of 1,000 bhp and greater, install, operate and maintain in calibration a NOX Continuous Emission Monitoring System (CEMS) with data gathering and retrieval capability.
Projects that do not contain combustion equipment are not eligible for this credit.
Potential Technologies & Strategies
- (Amended February 1, 2008), Emissions from Gaseous- and Liquid-Fueled
LEEDuser is produced by BuildingGreen, Inc., with YR&G authoring most of the original content. LEEDuser enjoys ongoing collaboration with USGBC.
4 Comments
Current Regs?
I referenced this credit in an e-mail to a boiler manufacturer and he said that the SCAQMD standards in the description were not current. If this is true, are we required to meet the new standards in order to get this credit or just criteria listed in the description?
Units of measurement
For anyone not in the California market are you having difficulty getting the required emissions information in ppmParts per million. rather than the EPA standard of grams per brakehorsepower-hour?
Currently available for mixed-use projects?
The pilot credit information online says this credit is available to all project types in the New Construction rating system, but the additional questions imply it is only for Healthcare projects - this is slightly confusing.
Hi Kimberly, are you referring to this question, "Should this credit be available to project types other than Healthcare, and which types?" (located in the credit-specific questions on the pilot credit) If so, we are trying to assess if building types other than hospitals or other large-scale healthcare projects have enough of the kind of equipment this credit covers for it to make the same environmental impact.
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