Diesel Particulate Matter (DPM)
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Diesel particulate matter (DPM) is the complex mixture of particles, gases, and vapors emitted from diesel-powered engines. It consists of a carbon soot core adsorbed with hundreds of chemicals, including polycyclic aromatic hydrocarbons (PAHs), aldehydes, and metals. DPM is classified as a probable human carcinogen (IARC Group 1) and is associated with lung cancer, cardiovascular disease, and respiratory impairment. Workers with the highest exposures include miners, truckers, railroad workers, dock workers, and heavy equipment operators. Monitoring is typically performed by measuring elemental carbon (EC) as a surrogate for DPM concentration.
Diesel particulate matter (DPM) monitoring is important anywhere diesel equipment operates in enclosed or poorly ventilated areas, especially underground construction and mining environments. Rent air sampling pumps and DPM sampling media from RAECO Rents to support exposure assessments for maintenance shops, warehouses, and underground work where diesel exhaust is a concern. Before rentals, we verify air sampling pump flow rate consistency to help support reliable sampling in the field. Our team can help confirm the right sampling method, flow rate, and setup for your protocol, with fast turnaround and phone support so you can collect defensible samples and document results.
Regulatory Exposure Limits
As of March 09, 2026
OSHA PEL
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STEL:
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C:
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NIOSH REL
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STEL:
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ACGIH TLV
TWA:
N/A
STEL:
N/A
C:
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