Exposure assessment is one of the more critical and complex areas of risk assessment

Provide answers to the following questions, and where necessary use your own words:

Exposure assessment is one of the more critical and complex areas of risk assessment. Due to the complexity and scale of the EHRA process, a concise ‘cookbook’/ approach on exposure assessment is not practicable. In light of this,

Define exposure assessment. (Refer to Chapter 4: section 4.1; pg 42) [2]

Explain any two aims of exposure assessment. (Refer to Chapter 4: section 4.1; pg 42) [4]

There are numerous terminologies used to define exposure as well as factors that can influence the extent of exposure by various pathways. Bearing this in mind,

Describe the terminologies as applied to exposure assessment under any 2 of the following headings;

exposure concentration,

exposure duration,

exposure frequency,

exposure event,

exposure route. (Refer to Chapter 4: section 4.2; table 6; pg 43) [4]

There is a number of elements to take into cognizance when planning an exposure assessment. Therefore,

Articulate any two of the basic elements to consider in the planning process. (Refer to Chapter 4: section 4.1; pg 42) [4]

A chemical or other agent may be released to the environment from a facility, situation or process in a variety of ways.

Outline any 4 steps in planning an exposure assessment. (Refer to Chapter 4: section 4.3; subsection 4.3.1; pg 45) [2]

Explain the significance of developing a conceptual site model. (Refer to Chapter 4: section 4.4; subsection 4.4.1; pg 47) [4]