Industrial Hygiene Assessment Services
the capacity to gain an accurate and deep intuitive understanding of a person or thing.
synonyms: perception, awareness, understanding, comprehension
The Occupational Safety and Health Administration (OSHA) has established permissible exposure limits (PELs) for nearly 500 chemicals (Table Z-1, Table Z-2, and Table Z-3). These limits are subject to the rulemaking process, which means the interest of all involved parties are taken into consideration. This process can become heavily political, as can be seen with the revised 1989 Air Contaminants standard, which updated many of the PELs, and was vacated three years later because certain legal requirements were not met in establishing risk. As such, most of the original limits have not been updated since they were first instituted shortly after the adoption of the Occupational Safety and Health (OSH) Act of 1970. (For reference, just 39% of households had a color television in 1970, and the median house price was $24,000).
Since OSHA cannot effectively update its exposure limits, several other organizations have stepped in a filled the void with advisory limits that are updated much more regularly, using the most current science. The American Congress of Governmental Hygienists (ACGIH) has established threshold limit values (TLVs) for more than 700 chemicals. The American Industrial Hygiene Associated (AIHA) has established Workplace Environmental Exposure Limits (WEELs) for hundreds of substances. Likewise, the National Institute for Occupational Safety and Health (NIOSH) has established recommended exposure limits (RELs) for many substances.
We have significant experience in determining the applicable 8-hour time-weighted average (TWA), ceiling concentration, short-term exposure limit (STEL) for hundreds of commonly used industrial substances. Typically, the personal breathing zone concentrations are determine through a sampling train (pump, tube, media) or passive badge/monitor that is placed into the employee’s breathing zone for a specified duration. This normally is performed for a full 8-hour shift, but can involve shorter term samples, depending on the substance and use. The typical end product is a full report which documents observations, methodology, and results as they compared to applicable exposure limits. Call (262.347.6599) or email (Eric.Pylkas@insightIHconsulting.com) today.
The best means of determining workplace noise levels is through the use of personal dosimeters which are place on the shoulder of employees and worn for the full work shift. We can also perform sound level surveys using a handheld sound level meter (and can process the results into a color contour map overlaying your facility layout). The typical end product is a full report which documents observations, methodology, and results as they compared to applicable exposure limits.
A typical contaminant mapping job will consist of fixed area samples, multiple static background monitors, and a single portable monitor. We can complete most mapping activities in a single work shift. The end product will consist of a report documenting the workplace, multiple color contour maps of the measured concentrations overlaying the facility layout, and concentration graphs for the static monitors.
Typically real-time monitoring is conducted simultaneously with full-shift personal breathing samples. Often multiple monitors will be utilized, to determine both personal and background concentrations at each targeted workstation. The end product consists of a detailed report with real-time concentration graphs, statistical breakdowns of the gathered data, results tables, and a description of the work activities and methodologies used.