MSHA Issues Final Rule for Miners Exposed to Diesel Particulate Matter

June 9, 2005
The Mine Safety and Health Administration (MSHA) on June 6 issued a final rule strengthening protections for miners exposed to diesel particulate matter (DPM) from diesel exhaust in underground metal and nonmetal mines.

By changing the unit of measure for DPM exposure to a more accurate one, this rule allows MSHA to enforce protections more effectively for exposed miners, the agency says.

The rule revises the interim DPM concentration limit measured in total carbon to a comparable, but more accurate, permissible exposure limit measured in elemental carbon, according to the agency. This will help ensure that individual miners are not exposed to unacceptable levels of DPM, the agency says.

The former interim level was 400 micrograms of total carbon per cubic meter of air (400TC µg/m3). The new interim level is 308 micrograms of elemental carbon per cubic meter of air (308EC µg/m3).

The rule also gives mine operators additional tools to bring their operations into compliance by employing the "hierarchy of controls" that is used in MSHA's other exposure-based health standards for metal and nonmetal mines, MSHA says. However, the rule retains the prohibition on rotation of miners to achieve compliance.

To view the full text of the final rule, visit MSHA's Web site at http://www.msha.gov.

Sponsored Recommendations

March 13, 2025
Learn about the main differences between OHSAS 18001 and ISO 45001, and how ISO 45001 takes a proactive approach to prevent work-related incidents. Find out why businesses should...
March 13, 2025
Avetta is a leader in contractor management, and with over 15 years of industry experience, we can help you establish a robust contractor pre-qualification program that aligns...
March 13, 2025
EQT commits to supporting Avetta in its ongoing growth and innovation journey.
March 13, 2025
Learn OSHA workplace lighting requirements to enhance safety, productivity, and quality. Discover standards, compliance benefits, and risks of non-compliance.

Voice your opinion!

To join the conversation, and become an exclusive member of EHS Today, create an account today!