Hazardous substances are any substances that might be harmful to people's health or cause damage to the environment.

They range from common household products like solvents and pesticides through to thousands of other liquids, gases and materials used in workplaces.

Some hazardous substances, such as gas and diesel fuel, are classified as dangerous goods.

Their storage, transportation and use are controlled by law, because of their potential to cause fires or explosions.

Every hazardous substance is required to have a material safety data sheet (MSDS), which is published by the manufacturer of the substance.

The MSDS is designed to give you important information on how to use the product safely, how to store it and transport it, and what to do if the substance spills.

Dealing with spills

Spills can be a real problem when they involve a hazardous substance. They should always be cleaned up straight away, no matter how small they are. Quite apart from any safety risks involved, you don't want the spill to escape into the stormwater system or soak into the ground and cause contamination.

If you have a serious spill at your workplace, or if you're worried about safety, call the fire brigade on 000.

Note that if a spill occurs that might harm the environment, you must tell the Environment Protection Authority (EPA) or local council as soon as you become aware of it.

General guidelines on handling and storage

Here's some general guidelines to follow when you're handling or storing hazardous substances.

1. Store chemicals in their own area, away from stormwater drains and out of the weather.

2. Never use plain drink bottles or other unmarked containers to store chemicals.

3. Clearly label all containers with the name of the product it contains if it is no longer in its original packaging.

4. Keep 'incompatible' chemicals well away from each other, that is, chemicals that are likely to react with each other.

5. Dispose of hazardous waste properly, using a licensed contractor to take it to a licensed depot.

6. Make sure that all vehicle activity is carried out well clear of the chemical storage area.