نتایج جستجو برای: hazardous substances
تعداد نتایج: 70809 فیلتر نتایج به سال:
PROBLEM/CONDITION A review of existing reporting systems indicated that not enough information was being collected to determine the public health consequences of emergency events involving hazardous substances. REPORTING PERIOD COVERED January 1990 through December 1992. DESCRIPTION OF SYSTEM State health departments in selected states collect and each quarter transmit information about the...
BACKGROUND A growing number of studies have identified cleaners as a group at risk for adverse health effects of the skin and the respiratory tract. Chemical substances present in cleaning products could be responsible for these effects. Currently, only limited information is available about irritant and health hazardous chemical substances found in cleaning products. We hypothesized that chemi...
Inspired by the simplicity of how nature solves its problems, this paper presents a novel approach that would enable a swarm of ant robotic agents (robots with limited sensing, communication, computational and memory resources) form a visual representation of distributed hazardous substances within an environment dominated by diffusion processes using a decentralized approach. Such a visual rep...
OBJECTIVES We aimed to assess the exposure of offset printing workers to hazardous substances in the rinsing processes of small-sized companies using a control banding method. METHODS We obtained half-year amounts of hazardous substances purchased through a questionnaire survey and the hazardous information from the safety data sheets (SDSs) and related literature. RESULTS The amount of pet...
Drinking water cannot be produced from every raw surface or groundwater in the European Union countries. The source must meetthe set criteria for quaility. At present time, drinking sources meet these requirements. However climatechange period, accompanied particular by long-term loss of volumes, limit values individual categories watermay frequently exceeded. Human society prepared this threat...
Objective Maternal exposure to various contaminants has been reported to be correlated with congetinal heart defects (CHDs). In this study, the effect of maternal exposure to organic and inorganic environmental factors upon the incidence of CHDs was investigated. We conducted a retrospective birth cohort study of infants born in the Maternal and Child Health Hospital of Panyu District in Guangz...
To prepare measures for practical policy utilization and the control of heavy metals, hazard control related institutions by country, present states of control by country, and present states of control by heavy metals were examined. Hazard control cases by heavy metals in various countries were compared and analyzed. In certain countries (e.g., the U.S., the U.K., and Japan), hazardous substanc...
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