Noise-induced hearing loss (NIHL) is distributed unevenly across industries, with some sectors carrying significantly higher risk than others. Mining, construction, manufacturing, and oil and gas are consistently the highest-exposure industries — workers in these sectors encounter sustained high-decibel environments where the action level of 85 dBA is regularly exceeded across full shifts.
Noise-induced hearing loss (NIHL) is distributed unevenly across industries, with some sectors carrying significantly higher risk than others. Mining, construction, manufacturing, and oil and gas are consistently the highest-exposure industries — workers in these sectors encounter sustained high-decibel environments where the action level of 85 dBA is regularly exceeded across full shifts. Agriculture, utilities, transportation, and warehousing carry intermediate risk, with exposure dependent heavily on specific job function and equipment proximity. The risk is determined not by industry category alone but by the specific noise sources an employee encounters, which is why OSHA’s monitoring requirement triggers whenever information indicates that any employee’s exposure may equal or exceed the action level — regardless of industry (29 CFR 1910.95(d)(1)). Within a single facility, exposure levels can vary dramatically by role. A maintenance technician in a manufacturing plant may have a significantly higher TWA than a quality control technician working in the same building, depending on proximity to machinery. This is why noise exposure monitoring must identify all employees whose exposures may be at or above the action level — not just those working in designated high-noise areas. Programs that use area measurements alone, rather than personal dosimetry for potentially exposed workers, risk missing exposures in roles that appear lower-risk on paper. SHOEBOX: Because in-house testing with SHOEBOX is available on-demand rather than tied to a scheduled van visit, programs can respond to changes in job assignments or facility layout more readily — enrolling newly identified at-risk employees for baseline audiograms without waiting for the next scheduled van visit.
