Governing Law and Regulations
U.S. Environmental Protection Agency (EPA) Office of Air and Radiation
See ADDRESSES & CONTACTS for addresses and telephone numbers.
EPA defines fugitive emissions as unintended emissions from facilities or activities (e.g., construction) that "could not reasonably pass through a stack, chimney, vent, or other functionally equivalent opening." In general, the decision whether to consider emissions as fugitive is a factual determination made by the state permitting agency on a case-by-case basis.
The following are examples of fugitive emissions and fugitive emissions sources:
- Fine particles
- Storage piles
- Leaks or releases from valves, pumps, compressors, flanges
Methods of controlling fugitive particulate emissions include:
- Water spray
- Chemical dust suppressants
- Vegetative barriers
- Sweeping paved roads
- Reducing speed on unpaved roads
- Paving roads
- Covering open trucks
The primary method of controlling fugitive VOCs from leaks is the implementation of a leak detection and repair program.
Fugitive Emissions and Major Source Definitions
Generally, a major source is any source that has the potential to emit:
- 100 tons per year (tpy) or more of any regulated pollutant
- 10 tpy of a hazardous air pollutant (HAP)
- 25 tpy of any combination of HAPs
Sources in nonattainment areas for ozone, carbon monoxide (CO), or particulate matter (PM-10) have lower thresholds, depending on the area's classification. See the ...