Contaminant Exposure Limits

While traveling this week, I read read through October’s Synergist magazine.  For those of you not familiar with The Synergist, it is a publication produced by the American Industrial Hygiene Association (AIHA).

This month’s edition had two excellent articles regarding exposure limits.  What are exposure limits?  Simply put, these are concentrations of contaminants to which people should not be exposed.  Some exposure limits are enforceable by law and others are mere recommendations.  Some exposure limits apply to the entire population, and others are for healthy workers in an occupational setting.  No two organizations promulgating exposure limits are the same.  Below are the most commonly quoted exposure limits in the US: Continue reading

Videos from another era

I recently came across some old government videos related to industrial hygiene, safety and indoor air quality that are just great.  An industrial hygienist, Mark Catlin, has put together a channel on YouTube to organize and share these great videos.  Here’s an example:

According to his profile, “Most of my clips are taken from old government and industrials films… I started clipping short segments from these wonderful old films and clips to use in teaching and I’m glad to be able to share them over the Internet.”

Here are a few more great ones: Continue reading