Certain hazardous wastes are regulated by the EPA as universal waste. Universal waste may contain mercury, lead, cadmium, nickel and other hazardous materials. Some examples of universal waste are listed below. The list is not all inclusive. In the State of Iowa, alkaline batteries and incandescent lamps are not considered hazardous or universal waste, and may be thrown away in the regular trash. At this time there is no recycling alternative for alkaline batteries or incandescent bulbs.