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Update on Cal/OSHA PELs and Process CIHC 16 th Annual Conference 2006 San Diego, California. History & Background Recent Cal/OSHA PEL amendments Outlook and process going forward. Cal/OSHA Program Structure. Within the Department of Industrial Relations (DIR):
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Within the Department of Industrial Relations (DIR):
Labor Code 147.1 Health Standards Functions of the Division of Occupational Safety and Health
…..the board shall adopt that standard which most adequately assures, to the extent feasible, that no employee will suffer material impairment of health or functional capacity even if such employee has regular exposure to a hazard regulated by such standard for the period of his working life..
….In addition to the attainment of the highest degree of health and safety protection for the employee, other considerations shall be the latest available scientific data in the field, the reasonableness of the standards, and experience gained under this and other health and safety laws.
PEL Advisory Committee:
Paper published by last PEL Advisory Committee describes the technical review process used most recently: Intl Journal of Occupational and Environmental Health Vol 12 (3) July-Sept 2006 pg 242 Link at: http://www.ijoeh.com/
For non-carcinogens since the mid-1990s the PEL Committee has generally taken a NOAEL* approach where supported by data, or a LOAEL* approach if data is more limited, applying safety factors commensurate with the nature of the risk, eg. irritant vs. sensitizer.
General formula used to translate toxicology study findings:
(Daily dose from study) X (body weight or surface area correction)
(Susceptibility factor) X (Species factor) X (Severity factor) X (Daily air
For carcinogens, the Committee began in the late 1990s to rely on
published authoritative cancer risk assessments from EPA, NTP, etc.
* NOAEL: No Observed Adverse Effect Level
** LOEAL: Lowest Observed Adverse Effect Level
Effective November 3, 2004
acrolein, allyl alcohol, butyl acrylate, diethyl ketone, di-sec-octyl phthalate, ethyl buty ketone, *ethyl cyanoacrylate, *ethyl tert-butyl ether, *flour dust, maleic anhydride, molybdenum (insoluble compounds), pentane, *pentyl acetate
Effective July 6, 2006
acetone, beryllium & compounds,*bis (dimethylaminoethyl) ether, 2-butoxyethanol, coal tar pitch volatiles (change to footnote only), crotonaldehyde, epichlorohydrin, glutaraldehyde (also added footnote), hexachlorobenzene, n-hexane, *1-hexene, methyl bromide, methyl 2-cyanoacrylate, methyl methacrylate, molybdenum (soluble compounds), propylene oxide, *1,3,5-triglycidyl-s-triazinetrione, *vinylidene fluoride
* Substance new to the PEL list