This Build A Kit from ready.gov provides a list of recommended supplies and materials to assemble NOW as an emergency supply kit. Water (1 gallon per person per day), food, bedding, prescriptions, can opener, first-aid kit, dust mask, flashlight, batteries, radio, whistle to signal help, and more. Minimum plan: 3 days (72 hours). Extra items listed for the Covid pandemic. Updated Feb. 2022.
Health and the Environment site by CDC’s National Center for Environmental Health. Topics in an A-Z Index such as air pollution and respiratory health, asthma, weather emergencies like hurricanes, tornadoes, extreme cold or extreme heat, tsunamis, wildfires and other environmental health issues such as mold, cancer clusters, and more. General emergency preparedness is included. See Climate and Health Program updated November 2022.