Industrial Hygiene Articles
What’s New with Hexavalent Chromium?
First, a little background information… As ordered by the Third Circuit Court of Appeals, OSHA published a final rule for hexavalent chromium. The final rule was issued February 28, 2006. The proposed rule, published in August 2004, indicated an 8-hour time-weighted...
Review of ANSI/ASHRAE Standard 62.1-2004: Part 1
Ventilation for Acceptable Indoor Air Quality ASHRAE Standard 62 is and has been a consensus standard that provides designers of buildings and mechanical ventilation systems guidance on ventilation for acceptable indoor air quality. The new standard contains a number...
Review of ANSI/ASHRAE Standard 62.1-2004: Part 2
Ventilation for Acceptable Indoor Air Quality This article is the second installment of our Review of ANSI/ASHRAE Standard 62.1-2004. The first installment reviewed changes in the use of carbon dioxide as an indicator of indoor air quality. The ANSI/ASHRAE Standard...
Review of ANSI/ASHRAE Standard 62.1-2004: Part 3
Ventilation for Acceptable Indoor Air Quality This article is the third installment of our Review of ANSI/ASHRAE Standard 62.1-2004. The new ANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality incorporates a number of significant changes to...
Overview of Asbestos Removal for Building Scheduled To Be Demolished
Recently, the owner of an unoccupied commercial building scheduled for demolition requested information on his responsibilities for dealing with asbestos-containing materials (ACMs) at the building. The following is a short overview of both the regulatory...
Presumed Asbestos-Containing Material vs Suspect Asbestos-Containing Material
Occasionally questions still arise about the difference between presumed asbestos-containing material vs suspect asbestos-containing material (suspect ACM) and how these terms relate to the OSHA Asbestos Standards. In both the OSHA Construction Asbestos Standard (29...
Adjusting Occupational Exposure Limits for Extended Work Shifts
Occasionally questions arise concerning the adjustment of occupational exposure limits for work shifts exceeding the traditional eight-hour work day. Since most of the regulatory and recommended exposure limits are based on the eight-hour workday, the effect of...
Hexavalent Chromium (CrVl) Update
Concern regarding occupational exposures to hexavalent chromium has been growing in recent years. This is primarily a result of epidemiologic studies that have consistently shown a link between exposure to hexavalent chromium compounds and excess lung cancers. The...
Commonly Asked Questions Regarding the OSHA Respiratory Protection Standard
Workplace Hygiene offers respirator fit testing courses several times during the year. Attendees generally consist of safety professionals, occupational nurses, industrial hygienists, program administrators, fit test technicians, and others. We have found that among...