Human health

In this step, you can work out your introduction’s category using your introduction's indicative human health risk from step 4.5 and indicative environment risk from step 5.5.

Use the on this page to work out your indicative human health risk by using your human health exposure band and the human health hazard characteristics that your chemical does or does not have. On this page, you'll be able to work out if the human health risk of your introduction is medium to high, low or very low.

A chemical has a human health hazard characteristic if the chemical can cause damage, harm or adverse effects to humans. Find out what you need to do to establish the human health hazard characteristics of your chemical, including when you can refer to our List of chemicals with high hazards for categorisation.

There are 4 human health exposure bands — exposure band 1 has the lowest level of human exposure and exposure band 4 the highest level. Follow steps on this page to work out your human health exposure band.

This step relates to introductions that are internationally assessed for human health. If you are not using an international assessment, go to Step 4.3.

You are at Step 4.1 because you've ruled out Steps 0, 1, 2 and 3 of the categorisation process.

To be able to finish your categorisation you need to work out the human health risk of your introduction. It could be very low, low, or medium to high.