Urinary concentrations of Cr, Cu, As(tot) and As(tox) adjusted for urinary creatinine as well as the sum of these metals were the primary outcome variables analysed both as continuous variables and as dichotomous variables with cut-offs [greater than or equal to] the detection limits for the metals and [greater than or equal to] environmental exposure limits
for the metals.
The council said that while standardised RF exposure levels and regulations are yet to be adopted with the South Asia-Middle East-North Africa region, regulatory bodies have taken the initiative to draw attention to the state of RF exposure limits
The ministry intends to implement the exposure limit
reduction after examining actual radiation exposure as crisis management efforts by plant operator Tokyo Electric Power Co.
Beyond this, the firm notes, because the hierarchy of controls in the agency's respirator standard requires employers to first try to control airborne contaminants through the use of engineering controls before turning to respirators, the APF rule could be interpreted to require the employer to implement engineering controls to achieve the self-determined exposure limit
Yet, ultimately OSHA determined that it would not be feasible for employees to achieve this lower exposure limit
for radio frequency (RF) energy, for the American National Standards Institute.
Each ductless fume hood comes equipped with a Captair Chemical Listing: a guide to over 650 chemicals documented for their retention capacity within the carbon filters at 1% of OSHA's Permissible Exposure Limit
The rule, which would lower the permissible exposure limit
from 52 micrograms to one microgram of CrVI per cubic meter of air, was published in the October 4, 2004, Federal Register.
Fume hoods are equipped with a Captair Chemical Listing, a guide to over 650 chemicals documented for retention capacity within the carbon filters at 1% of OSHA's Permissible Exposure Limit
Santa Clarita had a record smoggy season last year, with 25 days exceeding the short-term exposure limit
Before scanning occurs, a measure of the operating light level should be taken and a calculation done to try to ascertain the equivalent exhibition exposure limit
for the item.
The Occupational Safety and Health Administration (OSHA) recently issued a request for information on beryllium that may lead to a revision of its permissible exposure limit