نتایج جستجو برای: occupational exposure limits
تعداد نتایج: 468147 فیلتر نتایج به سال:
Background and aim: Magnetic resonance imaging as one of the best medical scanning technique is considered to be the most important sources of static magnetic fields. The staffs of MRI ´s units frequently exposed to these static magnetic fields. This study aims to determine the occupational exposure level to mentioned field and its related health effects in MRI´s units. Methods: The occup...
The conference “Occupational Limit Values for Hazardous Substances – Healthy working conditions in a global economy” in Dortmund discussed the relationship of various exposure levels for chemicals at the workplace: the “OELs occupational exposure limits” from member states or European institutions, “AOELs acceptable operator exposure levels” for biocides or pesticides, and “DNELs derived no eff...
A wide range of substances have been recognized as sensitizing, either to the skin and/or to the respiratory tract. Many of these are useful materials, so to ensure that they can be used safely it is necessary to characterize the hazards and establish appropriate exposure limits. Under new EU legislation (REACH), there is a requirement to define a derived no effect level (DNEL). Where a DNEL ca...
background : exposure to formaldehyde (fa) causes irritative effects and induces nasopharyngeal cancer; the international agency for research on cancer (iarc, lyon) classified fa as carcinogenic to humans, group 1. many studies have been published so far concerning the occupational exposure of industrial workers, embalmers, pathologists and anatomists to fa but very few data regarding medical ...
occupational asthma is defined as “a disease of variable airflow limitations and/or airway hyper-responsiveness due to causes and conditions attributable to a particular occupational environment and not stimuli that are being encountered outside the workplace.” an analysis of general population-based studies published up to 2007 showed that 17.6% of all adultonset asthma is due to workplace exp...
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