نتایج جستجو برای: health risk assessment of humans

تعداد نتایج: 21437646  

Nowadays, discharge of toxic heavy metals into the environment is anincreasing global concern. In light of this and that the per capita consumption of mushrooms has increased in Iran, the current study was carried out to investigate the levels and health-risk assessment of elements arsenic (As) and zinc (Zn) through consumption of button mushrooms marketed in Kermanshah city in 2016.In this des...

Journal: :iranian journal of toxicology 0
mohamad sakizadeh department of environmental sciences, shahid rajaee teacher training university, tehran, iran. hadi ghorbani department of soil sciences, university of shahrood, shahrood, iran.

background: the area of contaminated lands exposed to the health risk of environmental pollutants is a matter of argument. in this study, a new method was developed to estimate the amount of area that is exposed to higher than normal levels of cr, mn, and v. methods: overall, 170 soil samples were collected from the upper 10 cm of soil in an arid area in central part of iran in semnan province....

Journal: :Toxicology and applied pharmacology 2005
Daniel Dietrich Stefan Hoeger

This article reviews current scientific knowledge on the toxicity and carcinogenicity of microcystins and compares this to the guidance values proposed for microcystins in water by the World Health Organization, and for blue-green algal food supplements by the Oregon State Department of Health. The basis of the risk assessment underlying these guidance values is viewed as being critical due to ...

Journal: :Environmental Health Perspectives 1982

The Federal Panel on Formaldehyde concluded that definitive experiments exist which demonstrate the mutagenicity and carcinogenicity of formaldehyde under laboratory conditions. Formaldehyde induces both gene mutations and chromosomal aberrations in a variety of test systems. Inhalation of formaldehyde causes cancer of the nose in rats. The concentrations of formaldehyde in inhaled air that cau...

Abstract Background and Objective: The main index in resilience engineering is the management commitment index. In this study, a semi-quantitative risk assessment method based on the fuzzy hierarchical analysis method for management commitment index was implemented in evaluating the resilience level of two selected hospitals. Materials and methods: At first, evaluation tools including a 17-qu...

Journal: :annals of military and health science research 0
محسن سروش mohsen soroush department of internal medicine, division of rheumatology, aja university of medical sciences, tehran, iran. حمید حسنی hamid hassani department of occupational health engineering, school of public health, tehran university of medical sciences, tehran,

purpose: to determine the musculoskeletal complaints associated with using computer and its   ergonomic risks for office workers of a medical sciences university in tehran.   materials and methods: in this cross-sectional study, a background questionnaire was used   to determine individuals and computer use habits’ characteristics. a total number of 164 office   workers of aja university of med...

Journal: :international journal of occupational and environment medicine 0
sl wagner school of health sciences; university of northern british columbia, prince george, bc, canada c koehn school of education, counselling specialization, university of northern british columbia, prince george, canada mi white research associate, canadian institute for the relief of pain and disability, vancouver, canada hg harder school of health sciences; university of northern british columbia, prince george, bc, canada iz schultz department of educational and counselling psychology and special education, university of british columbia, vancouver, canada k williams-whitt faculty of management, university of lethbridge, lethbridge, ab, canada

background: mental health issues in the workplace are a growing concern among organizations and policymakers, but it remains unclear what interventions are effective in preventing mental health problems and their associated organizational consequences. this synthesis reports on workplace mental health interventions that impact absenteeism, productivity and financial outcomes. objective: to dete...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه علوم انسانی و مطالعات فرهنگی - دانشکده ادبیات، زبانهای خارجی و تاریخ 1391

abstract english language learning in iran has become significant in recent years, and english has been included in the curriculum of iranian schools and universities, and considerable attention has been paid to this language in our society. nevertheless, teaching and learning english in iranian schools has not been able to satisfy the specified goals, so different efl institutes have been est...

This article describes the process of improving risk management practices in a foundry of the ALFET Company (Algeria). The proposed methodology is based on the decision matrix risk assessment technique. This technique allows making a risk assessment for each source of risk (machine, man, environment, and management), which leads to the determination of the overall risk rate during the activity ...

Journal: :New South Wales Public Health Bulletin 2003

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