North Central Public Health District (NCPHD) and the Department of Environmental Quality (DEQ) urge residents to take precautions when entering wildfire-affected areas. Even after the fire is out, these areas remain hazardous. Ash and debris may contain toxic chemicals such as pesticides, motor oil, lead paint, heavy metals, and asbestos — especially in older homes. DEQ recommends that you do not disturb debris or begin cleanup until the site has been evaluated by hazardous materials professionals.