EPA is leaving these emission limits alone

One of the largest air-regulated industries is breathing easier now. 

National Emission Standards for Hazardous Air Pollutants (NESHAP) for Portland cement manufacturers will stay largely intact following an EPA review.

Emission limits for particulate matter (PM), total hydrocarbons, organic HAPs, mercury and hydrogen chloride will remain the same, following the agency’s residual risk and technology review (RTR).

EPA did correct parts of the Portland cement NESHAP. Manufacturers don’t have to report:

• 30-operating-day rolling averages for dioxins and furans (D/F) temperature monitoring, and

• daily clinker production and kiln feed rate records.

The rule also clarifies submittal dates for semiannual summary reports, requirements for PM performance tests, how toxic equivalents are calculated for D/Fs, and performance test requirements for equipment that’s sat idle extended periods.

Sign of moves to come?

Environmental groups wonder if subsequent RTRs will result in other sectors’ HAP limits being left alone.

EPA is years, in some cases decades, behind in reviewing NESHAPs for sectors like:

• solid waste landfills

• asphalt processing and roofing manufacturing

• paper and other web coating

• plastic parts coating

• iron and steel foundries (see Page 8 for related info)

• rubber tire manufacturing

• miscellaneous coating, and

• 26 other categories.