Environmental Health Pathway Flashcards
Components of the EHS pathway
Source –> Emissions –> Concentration –> Exposure –> Dose –> Health Effects
Source
Activity that releases pollutant into the environment
Emissions
Rate of release of pollutant
Concentration
Fate + transport of pollutant in specific environment
Exposure
Interaction of pollutant, people, and time
Dose
Biologically relevant component of exposure
Health Effects
PB HLTH failure; impact of an exposure
What are the upstream influences?
When is the linear pathway wrong?
When one factor early on directly affects the public’s health
Exposure vs. concentration
Exposure = organism-level components, how it affects humans
Concentration = environmental component, how it affects the environment