On December 22, 2021, EPA issued a final rule to add 1-Bromopropane, also known as n-propyl bromide (nPB), to the list of hazardous air pollutants (HAPs). This is the first air pollutant to be added since the list was established in 1990. The final rule was published on January 5, 2022 and went into effect as of February 4, 2022.
Some common uses of nPB include dry cleaning agents, disinfectants, degreasing agents, and coatings and inks. All facilities utilizing nPB or a material containing it, will need to recalculate their potential to emit (PTE) for single and total HAPs to determine if the facility exceeds major source thresholds;10 tons per year (tpy) for single HAPs and 25 tpy of total HAPs. If it is determined that the facility exceeds major source thresholds, the facility will become subject to the Title V Operating Permit Program and will be required to either file a Title V Application or obtain an air plan approval to restrict its potential HAP emissions to below major source thresholds.
If a facility becomes a major source of HAPs, the facility may also become subject to the National Emissions Standards for Hazardous Air Pollutants (NESHAP), which they may not have been subject to as a minor source.
If your facility utilizes and or emits nPB and has questions regarding the new EPA ruling, please contact us and we would be happy to provide additional information.
Additional Information can be found on EPA’s Website Here