Exposure Assessment

 Exposure assessment is that the method of estimating or measure the magnitude, frequency Associate in Nursingd period of exposure to an agent, together with the amount and characteristics of the population exposed. Ideally, it describes the sources, pathways, routes, and also the uncertainties within the assessment. Exposure analysis is that the science that describes however a personal or population comes in-tuned with a material, together with quantification of the quantity of contact across house and time. 'Exposure assessment' and 'exposure analysis' ar typically used as synonyms in several sensible contexts. Risk could be a perform of exposure and hazard. as an example, even for an especially nephrotoxic (high hazard) substance, the danger of Associate in Nursing adverse outcome is unlikely if exposures ar close to zero. Conversely, a moderately nephrotoxic substance might gift substantial risk if a personal or a population is very exposed. The receptor-based approach is employed in exposure science. It starts by gazing completely different contaminants and concentrations that reach folks. Associate in Nursing exposure analyst will use direct or indirect measurements to work out if an individual has been in-tuned with a particular material or has been exposed to a particular risk (e.g. accident). Once a material has been verified to achieve folks, exposure analysts work backwards to work out its supply. when the identification of the supply, it's necessary to search out out the foremost economical thanks to scale back adverse health effects. If the material reaches an individual, it's terribly laborious to scale back the associated adverse effects