Evaluation Of Potential Health Hazards Research Articles

Permittivity of mammalian tissues in vivo and in vitro Advances in experimental techniques and recent results

Electrical properties of biological substances and tissues are important for the understanding of biophysical interaction mechanisms as relevant to evaluation of potential health hazards. The knowledge of the tissue permittivity is also essential in developing effective electromagnetically-induced hyperthermia. The recent advances in the experimental techniques are outlined in this paper, and the data at radio frequencies and for microwaves are reviewed

Occupational health survey: an evaluation of potential health hazards in the workplace.

Critical reviews of production jobs, potential exposure to chemical and physical agents, and job placement policies are necessary to provide a safe and healthful working environment for employees. To achieve this objective, a five-phase survey has been developed at BASF Wyandotte Corporation. Phase one assembles a data bank which cross references chemical substances with job classifications. Phase two provides toxicological evaluation for each chemical, physical, and ergonomic stress. Phase three evaluates the magnitude of each stress for a particular job classification. Phase four identifies present members of the work force or applicants who may have a heightened susceptibility to any stress. Phase five provides an integrated health manual with useful data and materials disseminated to various staff groups, manufacturing personnel, and plant employees.

Recent progress in safety evaluation studies on plasticizers and plastics and their controlled use in Japan.

Recent experimental studies in Japan on the evaluation of potential health hazards from phthalate esters used in manufacturing poly (vinyl chloride) as well as several plastics for medical devices and for food containers and packages were introduced. Development of pulmonary granuloma formation after intravenous injection of diethylhexyl phthalate was assumed to be dependent on the particle size of the phthalate in vehicle used. Dietary administration of large amount of diethylhexyl phthalate and dibutyl phthalate produced renal cysts in mothers and in descendants in reproduction studies in mice. Cytotoxicity and mutagenicity of the phthalates and several plastics and resins were also examined by in vivo and in vitro studies. Hematological parameters examined in rabbits after repeated intravenous injection of diethylhexyl phthalate and after implantation of plastics in aorta for 3--6 months did not show any significant change. A slow decrease of radioactivity was observed in adipose tissue of rats following oral administration of 14C-labeled diethylhexyl phthalate. tthe administrative action on phthalates by the Japanese Ministry of Health and Welfare is briefly reviewed.

Recent Progress in Safety Evaluation Studies on Plasticizers and Plastics and Their Controlled Use in Japan

Recent experimental studies in Japan on the evaluation of potential health hazards from phthalate esters used in manufacturing poly (vinyl chloride) as well as several plastics for medical devices and for food containers and packages were introduced. Development of pulmonary granuloma formation after intravenous injection of diethylhexyl phthalate was assumed to be dependent on the particle size of the phthalate in vehicle used. Dietary administration of large amount of diethylhexyl phthalate and dibutyl phthalate produced renal cysts in mothers and in descendants in reproduction studies in mice. Cytotoxicity and mutagenicity of the phthalates and several plastics and resins were also examined by in vivo and in vitro studies. Hematological parameters examined in rabbits after repeated intravenous injection of diethylhexyl phthalate and after implantation of plastics in aorta for 3--6 months did not show any significant change. A slow decrease of radioactivity was observed in adipose tissue of rats following oral administration of 14C-labeled diethylhexyl phthalate. tthe administrative action on phthalates by the Japanese Ministry of Health and Welfare is briefly reviewed.

Evaluation of potential health hazards in fumigation of shelled corn with a mixture of carbon disulfide and carbon tetrachloride.

Evaluation of potential health hazards in fumigation of shelled corn with a mixture of carbon disulfide and carbon tetrachloride.