Ambient Measurement 1
Ambient Measurement 1 : (a) A measurement (usually of the concentration of a chemical or pollutant) taken in an ambient medium, normally with the intent of relating the measured value to the exposure of an organism that contacts that medium. [USEPA, 1992: GL for Exposure Assessment]; (b) A measurement of the concentration of a substance or pollutant within the immediate environs of an organism; taken to relate it to the amount of possible exposure. [USEPA, 1997a: EPA Terms of Environment]
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