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Step 4: Work out your introduction's risk to human health

To be able to finish your categorisation you need to work out the risks of your introduction to human health and the environment.

In Step 4, you need to work out the human health risk of your introduction - is it medium to high, low or very low? To work this out start at 4.1 and continue as far as you need to through each step.

Once you have your answer for human health, move to step 5 to work out the risk to the environment of your introduction.

At Step 6, you'll combine the human health risk and environment risk for the final category of your introduction.

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