Your local city has conveniently posted safe disposal of paints, aerosols and other hazardous materials online. These sites must be easily accessible because every homeowner at some point will come across this issue. Or specialized dangerous waste removal companies can also assist in the removal and disposal of hazardous materials. Keep in mind that these specialist companies are extremely expensive, arriving on-site with elaborate techniques and tools to contain things like airborne pollutants, chemicals and potential radiation.