Task $1$: Hazardous substance risk assessment

$1$ The occupational hygienist $($OH$)$ has made some initial measurements of dust

levels and gathered other information relating to exposure of workers to

vitamin C powder. All of this information is provided in supporting document

$1.$

$($a$)$ Explain what the OH should have considered when planning to measure

workers$$ personal dust exposure levels. $(15)$

Note: You should support your answer, where applicable, using relevant

information from the scenario and the relevant supporting document.

$($b$)$ Looking at the information in section $1$ of supporting document $1$

$($i$)$ give reasons why the OH decided to take these fixed place $($static$)$

measurements of dust levels. $(11)$

Note: You should support your answer, where applicable, using

relevant information from the scenario and the relevant supporting

document.

$($ii$)$ comment on the limitations of this information when assessing the

risks to workers exposed to vitamin C powder. $(8)$

$($iii$)$ comment on what the numerical information indicates. $(14)$

$($c$)$ Consider how the information in section $2$ of supporting document $1$

could be used when assessing the risks of workers$$ exposure to vitamin

C powder. $(20)$

$($d$)$ Based on all available information in the scenario and supporting

documents, what are the considerations when carrying out a hazardous

substance risk assessment for the handling of vitamin C powder by

workers at Nutripex? $(33)$

Note: You do not need to consider again the specific detail regarding

dust exposure information referred to in your answers to parts b $($iii$)$ and

c$.$