Hurricane response is the disaster response after a hurricane. This response encompasses assessment and repairs to buildings and infrastructure, removal of debris, and providing public health services. Hurricane responders may be exposed to many hazards such as chemical and biological contaminants, and injuries from work activities. Activities Activities performed by hurricane responders include assessment, restoration, and demolition of buildings; removal of debris and waste; repairs to land-based and maritime infrastructure; and providing public health services including search and rescue operations. Maritime response activities include checking for submerged obstructions and updating nautical charts for affected port areas; aerial survey missions to assess damages to affected areas to provide information for emergency responders; identification and survey of vessels or containers that may be leaking hazardous materials; and assessment of environmental impacts of contaminants in coastal and estuarine waters, including the health risk of eating fish and shellfish. Hurricane response requires coordination between federal, tribal, state, local, and private entities. An Incident Command System is used in the United States to coordinate activities between entities involved in disaster response. According to the National Voluntary Organizations Active in Disaster, potential response volunteers should affiliate with established organizations and should not self-deploy, so that proper training and support can be provided to mitigate the danger and stress of response work. Health and safety hazards Hurricane responders may be exposed to chemical and biological contaminants. These include sewage and stored industrial or household chemicals, human remains, and mold growth encouraged by flooding. Proper personal protective equipment, possibly including respirators, can help mitigate these hazards. In addition, fire ants are often disturbed during hurricanes and can float along in floodwaters, leading to the hazards of bites and stings. Asbestos and lead may be present in older buildings, and radon may be a concern in some areas. Common injuries arise from falls from heights, such as from a ladder; trips, slips, and falls from level surfaces; and use of chainsaws. There is a danger of electrocution from flooded areas, including from backfeed from portable generators. In addition, the use of generators, heaters, or stoves can lead to carbon monoxide poisoning if used indoors or close to an open window or air conditioner. Motor vehicle safety is important as most responders ride in motor vehicles, or may be required to direct traffic. Violence and looting is another hazard. Injuries may also result from entering buildings with compromised structural integrity,