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A job-exposure matrix (JEM) is a tool used to assess exposure to potential health hazards in occupational epidemiological studies.. Essentially, a JEM comprises a list of levels of exposure to a variety of harmful (or potentially harmful) agents for selected occupational titles.
The term immediately dangerous to life or health (IDLH) is defined by the US National Institute for Occupational Safety and Health (NIOSH) as exposure to airborne contaminants that is "likely to cause death or immediate or delayed permanent adverse health effects or prevent escape from such an environment." Examples include smoke or other ...
A 40-year experiment conducted by the U.S. Public Health Service withheld standard medical advice and treatment from a poor minority population with an easily treatable disease. The experiment targeted black male farmers who were told they needed to be treated for 'bad blood', [27] but who were, in fact, syphilitic. In addition to many ...
For non-cancer health effects, the terms reference dose (RfD) or reference concentration (RfC) are used to describe the safe level of exposure in a dichotomous fashion. Newer ways of communicating the risk is the probabilistic risk assessment .
However, these safety systems can increase the risk of exposure to splashed blood. [2] Education with training for at-risk healthcare workers can reduce their risk of needlestick injuries. [25] [21] The National Institute for Occupational Safety and Health (NIOSH) has a campaign (Stop Sticks) to educate at-risk healthcare workers. [26]
Acute radiation syndrome (ARS), also known as radiation sickness or radiation poisoning, is a collection of health effects that are caused by being exposed to high amounts of ionizing radiation in a short period of time. [1] Symptoms can start within an hour of exposure, and can last for several months.
For example, if research shows that exposure to a certain chemical is linked to an increased risk of cancer, [19] policymakers can take steps to regulate or ban the use of that chemical. [20] In addition to informing public health policies, the study of the exposome can also help individuals make more informed choices about their own health. [5]
Complications from radiation exposure include malformation of internal organs, reduction of IQ, and cancer formation. [8] The SI unit of exposure is the coulomb per kilogram (C/kg), which has largely replaced the roentgen (R). [9] One roentgen equals 0.000 258 C/kg; an exposure of one coulomb per kilogram is equivalent to 3876 roentgens. [9]