What problems may arise from mixing household hazardous waste with other domestic waste?
What you could do is generate a table where down one side you have items from household hazardous waste and along the other items from domestic waste. Then fill in the cells with what interaction there may or may not be.
Some examples of household hazardous waste can be found at:
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Domestic waste is a little more difficult to define. One way of looking at it is municipal waste that is not hazardous waste.