Approaches and steps in exposure assessment

Exposure assessment uses a wide array of techniques and information sources. The approaches to exposure assessment can be classified into four general categories  

1) the use of professional (i.e. expert) judgement alone, with no attempt to use the direct or indirect approaches described below, to arrive at a qualitative assessment of the 

2) direct approaches to quantify the exposure being assessed, using monitoring data from real-life situations  

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