The U.S. Environmental Protection Agency promulgated in the Federal Register (87 FR 393) the addition of 1-bromopropane (Chemical Abstracts Service Number 106–94–5) to the Clean Air Act Section 112 list of hazardous air pollutants. The Missouri Department of Natural Resources issued a draft methodology to derive a Screening Model Action Level to perform air quality analyses specific to 1-bromopropane. The department invites the public to review and offer written comments on the draft methodology until Oct. 30, 2023. The department may extend the comment period 30 calendar days if a written request is received by Oct. 25, 2023. The public can review the draft proposal below.
Written comments and any relevant information or materials may be submitted by mail to Missouri Department of Natural Resources, Air Pollution Control Program, ATTN: Stephen Hall, P.O. Box 176, Jefferson City, MO 65102-0176 or by email to apcppermitspn@dnr.mo.gov. Comments submitted by email are limited to 20 MB in size. Comments larger than 20 MB need to be submitted by mail to the address above.