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Industrial Hygiene Article Archive

By Tony Watson, CIH, CSP
As ordered by the Third Circuit Court of Appeals, OSHA recently published a final rule for hexavalent chromium.


By Brian Kareis, CIH, PE
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 the previous standard – 62-2001. This article covers changes found in Section 6.


By Brian Kareis, CIH, PE
This article is the second 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 the previous standard – 62-2001. This article covers the standard's 17 addenda that delete and/or replace many of the sections of the previous standard.


By Brian Kareis, CIH, PE
ASHRAE Standard 62 provides designers of buildings and mechanical ventilation systems guidance on ventilation for acceptable indoor air quality. The new standard contains a number of significant revisions to the 2001 standard. In fact, there is relatively little that has not been changed.


By Mike Kindley, CIH
The National Emissions Standard for Hazardous Air Pollutants (commonly referred to as NESHAPs and found in 40 CFR Part 61, subpart M) regulates demolition of “facilities” that may contain asbestos-containing materials (ACMs). NESHAPs requires that certain ACMs must be removed from a building prior to demolition. Read about the NESHAPs requirements...


By Mike Kindley, CIH
This article answers questions that still arise about the difference between "presumed asbestos-containing material (PACM)" and "suspect asbestos-containing material (suspect ACM)" and how these terms relate to the OSHA Asbestos Standards.


By Tony Watson, CIH, CSP
Epidemiologic studies have consistently shown a link between exposure to hexavalent chromium compounds and excess lung cancers. The World Health Organization (WHO), the Department of Health and Human Services (DHHS), the U.S. Environmental Protection Agency (EPA), and the International Agency on the Research of Cancer (IARC) have all determined that hexavalent chromium causes cancer in humans. Read more about OSHA's proposed hexavalent chromium PELs and new sampling and analytical measuring methods.


By Mike Kindley, CIH
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 exposures for those working 10- and 12-hour work shifts becomes critical in light of the fact that extended work shifts not only increase exposure time during the workday, but reduce the recovery period between exposures. Read about OSHA's standards addressing this.


By Tony Watson, CIH, CSP
Workplace Group 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 the attendees there are some recurring questions regarding OSHA’s revised Respiratory Protection Standard, 29 CFR 1910.134. Some of the more common questions, along with answers, are addressed in this article.



   
 

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