Please upgrade your browser. This site requires a newer version to work correctly. Read more
Our "watch" feature allows you to stay current on all aspects of this specific credit. In your account, you can control what you get updated on and how you receive your notifications. Hide

LEED BD+C: New Construction | v4 - LEED v4

Community contaminant prevention - airborne releases

Possible 1 point

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 (VOCs) 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 Uses5
0.070 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 ECF1,2,6
2,000 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)8,9
30 ppm7 or 0.036 pounds per million BTU of heat input   400 ppm7
Notes:

  1. Parts per million by volume, corrected to 15% oxygen on a dry basis and averaged over 15 minutes.
  2. Measured as carbon.
  3. The averaging time of the emission standards is 15 minutes.
  4. Mass emissions of VOC shall be calculated using a ratio of 16.04 pounds of VOC per lb-mole of carbon.
  5. Emissions limits shall be subject to adjustment for engines that produce combined heat and electrical power (see Rule 1110.2)
  6. ECF is the efficiency correction factor.
  7. Parts per million by volume, corrected to 3% oxygen on a dry basis.
  8. Capacity Factor greater than 25%.
  9. 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.

Join LEEDuser

Ask questions, share tips, and get notified of new forum posts by joining LEEDuser, a tool developed by BuildingGreen and supported by USGBC!

  • Share on Twitter
  • Share on Facebook
  • Share on LinkedIn
  • Print to PDF
Sample forms

No sample form available for this credit.

View all sample forms

0 commentsLeave a comment

Leave a comment Don't have an account? Create one

You must be signed in to leave a comment.