Question

For existing chemicals, we should always consider ________ exposure assessment based on modelling, to derive an environmental concentration.

(a) Better case

(b) Reasonable worst case

(c) Moderate case

(d) High case

This question was posed to me in a national level competition.

I'd like to ask this question from Risk Management in division Risk Management of Hazardous Waste Management

Answer 1

Right option is (b) Reasonable worst case

To explain: After reasonable worst case exposure, the subsequent step is to estimate the substance’s release rate based upon its use pattern. All potential emission sources are analysed from production and formulation to use and disposal, and the receiving environmental compartment(s) is/are identified.