But, cognizant authorities have established
threshold limit values (TLVs) for many impact-mixture constituents and ACGIH has established a target limit of 1.
Hence, the
threshold limit value over a time-weighted average (TLV-TWA) for formaldehyde is the time-weighted average concentration for an 8-hour day and a 40-hour workweek to which workers may be repeatedly exposed without adverse effect.
The BEI is a biomarker that correlates to the American Conference of Governmental Industrial Hygienists' 8-hour
threshold limit value (ACGIH TLV) of 50 ppm (3).
3], the American Conference of Governmental Industrial Hygienists (ACGIH)
threshold limit value ceiling (TLV-C) is 0.
The American Conference of Governmental Industrial Hygienists has issued a Notice of Intended Changes to its
Threshold Limit Value for wood dust.
Meanwhile, the American Conference of Governmental Industrial Hygienists (ACGIH) has published a notice of intended change that would lower its
threshold limit value of 2.
3])
threshold limit value for both hardwood dust, which it classifies as Group 1: Carcinogenic to Humans, and softwood dust, which is classified under Group 4: Not Classifiable as a Human Carcinogen.
If non-industrial standards or guides have not been established for a contaminant, the industrial-hygiene profession customarily recommends a guideline of one-tenth the ACGIH
threshold limit value.
3])
threshold limit value (TLV) on occupational exposures for both hardwood dust, which it lists as an "Al - Confirmed Human Carcinogen," and softwood dust, which it lists as an "A4 - Not Classifiable as a Human Carcinogen.
Environmental Protection Agency (EPA), in conjunction with the Department of Environmental Protection (DEP) in New York, requires that emissions of malodorous and toxic gases, such as hydrogen sulfide and mercaptans, from water treatment facilities be maintained below the established
Threshold Limit Value.
The CEL is the lowest of the short-term exposure limit (STEL) of the American Conference of Governmental Industrial Hygienists (ACGIH), 2X the ACGIH
threshold limit value (TLV), or 1% of the [LC.
The lead content of air in Garage I has almost reached the
threshold limit value (TLV) for lead.
