+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Laboratory evaluation of permissible exposure limits for men in hot environments



Laboratory evaluation of permissible exposure limits for men in hot environments



American Industrial Hygiene Association Journal 40(12): 1097-1103



Forty-six industrial workers completed a total of 653 one-hour work bouts requiring an average of 122-235 kcal/M2/hr in an environmental chamber maintained at heat stress levels ranging from 8-37 degrees C wet bulb globe temperature (WBGT). Heart rates (HR) and rectal temperatures (Tre) were measured at the end of each work bout. Environmental heat stress levels were divided into two groups - those above and those below the permissible exposure limits (PEL). The PEL is the proposed maximum environmental thermal stress to which industrial workers can be exposed without endangering their health. The number of observations in each of these regions was further divided into those which were above the recommended limits of a World Health Organization study group (HR less than or equal to 110 bpm, Tre less than or equal to 38.0 degrees C) and those which were not. The number of "safe" (HR less than or equal to 110 bpm, Tre less than or equal to 38.0 degrees C) observations in environments with heat stress less than or equal to the PEL ranged from 100% to 2.4% depending on subject acclimatization and work rate. The degree of protection was always less in the winter than in the summer and was less for higher work rates. Men who normally worked in hot environments had fewer "excessive" HR's and Tre's than those who did not.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 005787806

Download citation: RISBibTeXText

PMID: 539550


Related references

Threshold limit values, permissible exposure limits, and feasibility: The bases for exposure limits in the United States. American Journal of Industrial Medicine 23(5): 683-694, 1993

Respiratory health of brickworkers in Cape Town, South Africa. Appropriate dust exposure indicators and permissible exposure limits. Scandinavian Journal of Work, Environment and Health 15(3): 198-202, 1989

Permissible limits for uncertainty of measurement in laboratory medicine. Clinical Chemistry and Laboratory Medicine 53(8): 1161-1171, 2016

Development of permissible exposure limits: the California experience. International Journal of Occupational and Environmental Health 12(3): 242-247, 2006

Metabolism of zinc-65 in the rat. Consideration of permissible exposure limits. Health Physics 6: 6-18, 1961

Current status of the problem of permissible or tolerable limits for potentially toxic chemical agents in occupational environments. Archives des Maladies Professionnelles de Medecine du Travail et de Securite Sociale 32(4): 353-370, 1971

Metabolism of radio-ruthenium in the rat; consideration of permissible exposure limits. American Journal of Roentgenology, Radium Therapy, and Nuclear Medicine 79(6): 1026-1044, 1958

Updating OSHA's permissible exposure limits: putting politics aside. American Industrial Hygiene Association Journal 58(12): 845-849, 1998

What should hospitals do about vacated OSHA PELs (permissible exposure limits)?. Healthcare Hazardous Materials Management 8(4): 5-6, 1994

The Impact of Different Permissible Exposure Limits on Hearing Threshold Levels Beyond 25 dBA. Iranian Red Crescent Medical Journal 16(10): E15520, 2015

Proposed maximum permissible exposure limits for ultrashort laser pulses. Health Physics 76(4): 349-354, 1999

OSHA's permissible exposure limits: regulatory compliance versus health risk. Risk Analysis 9(4): 579-586, 1989

A colorimetric sensor array for identification of toxic gases below permissible exposure limits. Chemical Communications 46(12): 2037-2039, 2010