Describe on Method Used in Exposure Assessment
Three different approaches can be distinguished. A variety of subjective and objective methods of exposure measurement are used in epidemiology. Guidance On Harmonised Methodologies For Human Health Animal Health And Ecological Risk Assessment Of Combined Exposure To Multiple Chemicals 2019 Efsa Journal Wiley Online Library The relationship between exposure to chemicals and ill-health outcomes is often calculated using crude exposure measures such as evernever exposed or duration. . The mean exposure level an upper percentile and the exceedance fraction are used to characterize exposure levels and confidence limits are used to describe the uncertainty in these estimates. The Guidelines include a glossary which helps standardize terminology used by the Agency in exposure assessment. They include personal interviews self-administered questionnaires diaries of behaviour reference to records physical or chemical measurements on the subject phy...