Exposure science can be thought of most simply as the study of stressors, receptors, and their contacts in the context of space and time. For example, ecosystems are receptors for such stressors as mercury, which may cascade from the ecosystem to populations to individuals in the ecosystem because of concentration and accumulation in the food web, which lead to exposure of humans and other species. As the stressor (mercury in this case) is absorbed into the bodies of organisms, it comes into contact with tissues and organs. It is important to recognize that exposure science applies to any level of biologic organization ecologic, community, or individual—and, at the individual level, encompasses external exposure (outside the person or organism), internal exposure (inside the person or organism), and dose.Exposure Science in the 21st Century: A Vision and a Strategy, Committee on Human and Environmental Exposure Science in the 21st Century; Board on Environmental Studies and Toxicology; Division on Earth and Life Studies; National Research Council A recent landmark study conducted by the World Health Organization and the International Labour Organization found that exposure to long working hours is the occupational risk factor with the largest attributable burden of disease, i.e. an estimated 745,000 fatalities from ischemic heart disease and stroke events in 2016. It showed that application of exposure science to new areas, in this case occupational health, can produce novel knowledge for policy and practice  .
Exposure science can be thought of most simply as the study of stressors, receptors, and their contacts in the context of space and time. For example, ecosystems are receptors for such stressors as mercury, which may cascade from the ecosystem to populations to individuals in the ecosystem because of concentration and accumulation in the food web, which lead to exposure of humans and other species. As the stressor (mercury in this case) is absorbed into the bodies of organisms, it comes into contact with tissues and organs. It is important to recognize that exposure science applies to any level of biologic organization ecologic, community, or individual—and, at the individual level, encompasses external exposure (outside the person or organism), internal exposure (inside the person or organism), and dose.Exposure Science in the 21st Century: A Vision and a Strategy, Committee on Human and Environmental Exposure Science in the 21st Century; Board on Environmental Studies and Toxicology; Division on Earth and Life Studies; National Research Council A recent landmark study conducted by the World Health Organization and the International Labour Organization showed that application of exposure science to new areas, in this case occupational health, can produce novel knowledge for policy and practice when it estimated based on a huge exposure databases of 2,300 surveys that exposure to long working hours is the occupational risk factor with the largest attributable burden of disease .
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found that exposure to long working hours is the occupational risk factor with the largest attributable burden of disease, i.e. an estimated 745,000 fatalities from ischemic heart disease and stroke events in 2016. It
A
when it estimated based on a huge exposure databases of 2,300 surveys that exposure to long working hours is the occupational risk factor with the largest attributable burden of disease