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Injury or illness can occur when cleaning up your business following a disaster. Disasters result in obvious hazards such as downed power lines and contaminated waters, and hidden dangers such as molds and toxins. Taking the proper cleanup precautions means you can get back to business sooner. The following resources provide business owners with tips and advice to help them safely get back on their feet.
These resources from the Centers for Disease Control (CDC) provide general guidance and information on specific cleanup issues:
The Occupational Safety and Health Administration (OSHA) has published information on cleanup hazards during natural disaster recoveries and workers' safety following hurricanes.
In addition to the CDC and OSHA, the Environmental Protection Agency (EPA) and the Federal Emergency Management Agency (FEMA) help businesses deal with specific cleanup concerns.
Use regular unscented 5.25% household bleach. Read and follow the safety instructions on the bleach container’s label. Never mix bleach with ammonia or any other cleaner. Wear rubber boots, rubber gloves, and eye protection. Try not to breathe bleach fumes. Open windows and doors to get fresh air.
The amount of bleach to mix with water depends on what you are cleaning or sanitizing. The following chart describes some items or surfaces that should and can be cleaned, the amount of bleach to mix with water, and cleaning steps for specific purposes.
Area or Item to be Cleaned | Amount of Bleach and Water to Mix | Cleaning Steps | |
---|---|---|---|
Bleach Amount | Water Amount | ||
Sanitize Drinking Water | |||
Clear drinking water | 1/8 teaspoon ( ~0.75 mL) |
1 gallon |
For more information see: Keep Food and Water Safe After a Disaster |
Cloudy drinking water | 1/4 teaspoon (~1.5 mL) |
1 gallon |
For more information see: Keep Food and Water Safe After a Disaster |
Water storage containers (Examples: used cans or bottles) |
1 teaspoon (4.9 mL) |
1 cup (240 mL) |
For more information see: Keep Food and Water Safe After a Disaster |
Clean and Sanitize Food Cans and Surfaces | |||
Food-contact surfaces that may have touched floodwater [Examples: countertops, plates] Note: Throw away wooden cutting boards, baby bottle nipples, and pacifiers | 1 teaspoon (4.9 mL) |
1 gallon |
For more information see: Keep Food and Water Safe After a Disaster |
Food cans that are not bulging, open, or damaged | 1 cup (240 mL) |
5 gallons |
For more information see: Keep Food and Water Safe After a Disaster |
Clean and Sanitize Other Household Surfaces and Items | |||
Surfaces that do not soak up water and that may have touched floodwater [Examples: floors, stoves, sinks, certain toys, countertops, flatware, plates, and tools] | 1 cup (240 mL) |
5 gallons |
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Clean Mold Growth Off Hard Surfaces | |||
Mold growth on hard surfaces [Examples: floors, stoves, sinks, certain toys, countertops, flatware, plates, and tools] | 1 cup (240 mL) |
1 gallon |
For more information see: Protect Yourself from Mold |
During flooding, systems for heating, ventilating, and air conditioning (HVAC) can become submerged in flood waters. As a result, these systems may contain substantial amounts of dirt and debris and may also become contaminated with various types of microorganisms such as bacteria and fungi. The following recommendations will help ensure that HVAC systems contaminated with flood water are properly cleaned and remediated to provide healthy indoor environments.
Microorganisms may grow on all surfaces of HVAC system components that wereCleanup activities related to returning to homes and businesses after a disaster can pose significant health and environmental challenges. People may be exposed to potentially life-threatening hazards posed by leaking natural gas lines, and carbon monoxide poisoning from using un-vented fuel-burning equipment indoors. During a flood cleanup, failure to remove contaminated materials and to reduce moisture and humidity may present serious long-term health risks from micro-organisms, such as bacteria and mold.
When citizens are authorized by local authorities to return to their homes and businesses, federal authorities urge people to take the following precautions:
General cautions when re-entering damaged homes and buildings
EPA urges the public to be on the alert for leaking containers and reactive household chemicals, like caustic drain cleaners and chlorine bleach, and take the following necessary precautions to prevent injury or further damage:
Individuals should exercise caution when disturbing building materials to prevent physical injury or other health effects. Building materials may contain hazardous materials such as asbestos that when carried by the air can be breathed in and cause adverse health effects. If it is suspected that asbestos containing materials may be present, they should not be disturbed. Asbestos-containing materials include the following:
Federal, state and local personnel are often deployed to affected areas to establish debris-management programs, including household hazardous waste collection and disposal programs. These efforts may take days or weeks to come to all communities. In the meantime, EPA urges the public to exercise caution and report concerns to local environmental, health and waste disposal authorities.
Be aware of possible combustible or explosive gases - After a disaster, highly explosive gas vapors may still be present in many buildings. In addition, methane and other explosive gases may accumulate from decaying materials.
Don't smoke, light matches, operate electrical switches, use either cell or conventional telephones, or create any other source of ignition.
Leave the building immediately; leaving the door open and any windows that may already be open.
Notify emergency authorities. Don't return to the building until you are told by authorities that it is safe to do so.
Do not use fuel-burning devices such as gasoline-powered generators, gasoline-powered pressure washers, camp stoves and lanterns, or charcoal grills in homes, garages, or any other confined space such as attics or crawl spaces, or within 10 ft. of windows, doors or other air intakes. Opening doors and windows or using fans will not prevent CO buildup in the home. Have vents and chimneys checked to assure that debris does not block or impede the exhaust from water heaters and gas furnaces.
If you start to feel sick, dizzy or weak while using a generator, get to fresh air right away. The CO from generators can readily lead to full incapacitation and death.
Avoid problems from mold, bacteria and insects - Standing water is a breeding ground for a wide range of micro-organisms and insects, such as mosquitoes. Mosquitoes can spread diseases like West Nile Virus. Micro-organisms, including bacteria and mold, can become airborne and be inhaled. Where floodwater is highly contaminated, infectious disease is of concern.
Remove standing water as quickly as possible.
Remove wet materials and discard those that cannot be thoroughly cleaned and dried, ideally within 48 hours. While smooth, hard surface materials such as metal and plastics can often be cleaned effectively, virtually all building contents made of paper, cloth, wood and other absorbent materials that have been wet for longer than 48 hours may need to be discarded as they will likely remain a source of mold growth.
Dry out the building. Heavily contaminated flood waters contain micro-organisms and other contaminants that can penetrate deep into soaked, porous materials and later be released into air or water. Completely drying out a building that has been immersed in contaminated flood waters will take time and may require the extensive removal of ceiling, wall, insulation, flooring and other materials as well as, in some cases, extensive disinfection. The growth of micro-organisms will continue as long as materials remain wet and humidity is high. If a house or building is not dried out properly, a musty odor, signifying growth of micro-organisms, can remain long after the flood. When fumes are not a concern and if electricity is available and safe, closing windows and running a dehumidifier or window air conditioner can be an effective way to remove moisture if the damage is moderate.
Reduce your exposure to air and water contaminants. Every effort should be made to limit contact with flood water. This includes the breathing of water vapors or mists formed from the contaminated water; this may occur when water is pumped or sprayed. If removing materials or furnishings already contaminated with mold or when cleaning significant areas of mold contamination or generally disinfecting areas soiled by flood waters, federal authorities recommend limiting your exposure to airborne mold spores by wearing gloves, goggles, and wearing an N-95 respirator, if available, or a dust mask.
Mixing certain types of household cleaners and disinfectants can produce toxic fumes and result in injury and even death. Do not mix them or use them in combination.
Read and follow all label instructions carefully.
Provide fresh air by opening windows and doors. Remain in a room no longer than necessary. Allow adequate time for the area to air out.
If there is no standing water in the building and it is safe to use electricity, use fans both during and after the use of disinfecting, cleaning, and sanitizing products. Be sure that before using any electrical appliances, that they are properly grounded, and where possible, connected to a ground break equipped electrical source.
Keep all household products locked, out of sight and out of reach of children. Use child-resistant packaging properly by closing the container securely after each use. Keep items in original containers. Call 1-800-222-1222 immediately in cast of poisoning.
If you know or suspect that your home contains asbestos or lead-based paint and any of these materials have been damaged or will otherwise be disturbed during cleanup, seek the assistance of public health authorities and try to obtain help from specially trained contractors, if available.
If possible, removed materials should be handled while still wet or damp, double bagged and properly labeled as to contents.
In handling materials that are believed to be contaminated with asbestos or lead, EPA recommends that, at a minimum, you wear gloves, goggles, and most importantly, OSHA-approved respiratory protection, if available.
While still wearing a mask, wash hands and clothing after handling such materials.
If at all possible, avoid activities that will generate dust, such as sweeping or vacuuming debris that may contain asbestos or lead.
Take precautions before your contractor or you begin remodeling or renovations that disturb surfaces that may contain lead-based paint (such as scraping off paint or tearing out walls):
Have the area tested for lead-based paint.
Do not use a belt-sander, propane torch, heat gun, dry scraper, or dry sandpaper to remove lead-based paint. These actions create large amounts of lead dust and potentially harmful fumes.
Temporarily move your family (especially children and pregnant women) out of the apartment or house until the work is done and the area is properly cleaned. If you can't move your family, at least completely seal off the work area.
EPA's guidance has been requested on the demolition of structurally unsound buildings damaged by Hurricane Katrina. Various federal regulations apply to building demolition activities. Areas of primary federal concern include asbestos demolition requirements, the proper disposal of electrical equipment containing PCBs (i.e., distribution transformers and capacitors) and storage tanks. EPA recognizes the difficult circumstances faced in demolishing structurally unsound buildings damaged by Hurricane Katrina may make full compliance difficult. However, in any event, you should take the actions set forth below to the extent feasible.
Efforts to restore the damaged areas to their pre-disaster condition often involve removing or repairing damaged structures. There may be a natural tendency at this stage to overlook certain hazards, such as asbestos, that are not immediately life threatening. However, such hazards are serious and may manifest themselves many years from the time of exposure and should be taken into consideration. Given the health hazards associated with asbestos, PCBs, lead, and other harmful substances, it is reasonable that adequate measures be taken during emergency situations to minimize exposure to such materials from the demolition of buildings.
The following guidelines are provided to help minimize the health, safety and environmental risks associated with the demolition of structurally unsound buildings (structures that remain standing but are in danger of imminent collapse). In the case of such buildings it would be unsafe to enter or inspect a structure to determine the amount, types, and location of building materials containing asbestos, PCBs, lead, or other harmful substances. This guidance does not apply to the demolition of hurricane damaged but structurally sound buildings.
This guidance remains in effect through December 31, 2005, and applies only to areas damaged by Hurricane Katrina.
To the extent feasible, efforts should be made to perform the following steps:
Underground Storage Tanks and Above Ground Storage Tanks
Releases of petroleum or hazardous substances from underground storage tanks (USTs) and above-ground storage tanks (ASTs) present significant health, safety and environmental concerns and thus should always be addressed with care. If, for example, gasoline pumps, pump station islands or vent pipes are present near a damaged building, or if an unknown tank or cylinder is discovered, halt all demolition activities, seal off the area and call the state environmental agency.
Federal asbestos regulations do not apply to the demolition of structurally unsound buildings by private individuals who contract directly with the demolition contractor for the demolition of a residential building they own having four or fewer units. However, EPA strongly recommends, for health reasons, that anyone conducting demolition activities follow this guidance.
Identifying Asbestos Containing Materials
Notification and Expertise
Removal of Asbestos Containing Material
Disposal of Asbestos Containing Material
Polychlorinated Biphenyls (PCBs)
The original guidance for PCBs has been superseded by "Guidance for Addressing Spills from Electrical Equipment".
Other Hazardous Materials
If other hazardous or unknown materials, such as lead, non-liquid PCBs, solvents, pesticides, herbicides, varnishes, pool chemicals, industrial grade cleaning solutions, etc., are discovered during demolition, please immediately contact the state environmental agency for further guidance on the management of that material.
Disposal of Construction Debris
Other debris created by the demolition of structurally unsound buildings that do not contain asbestos, PCBs, lead, and other harmful substances, should be disposed of in an appropriate landfill or burned pursuant to the Emergency Hurricane Debris Burning Guidance issued by EPA. These guidelines do not supercede emergency orders which may be issued.
Guidance for Addressing Spills from Electrical Equipment
Introduction
EPA is providing the following guidance for addressing spills from electrical equipment damaged by Hurricane Katrina or Hurricane Rita. Areas of primary federal concern include the proper disposal of electrical equipment containing PCBs (i.e., distribution transformers and capacitors). EPA recognizes that individuals, contractors or others involved in removing electrical equipment or utilities restoring electrical service in areas damaged by Hurricane Katrina or Hurricane Rita face difficult circumstances that may impede full compliance. However, in any event, you should take the actions set forth below to the extent feasible.
Efforts to restore the damaged areas to their pre-disaster condition often involve removing or repairing damaged electrical equipment. There may be a natural tendency at this stage to overlook certain hazards, such as those associated with PCBs, that are not immediately life threatening. However, such hazards are serious and may manifest themselves many years from the time of exposure and should be taken into consideration. Given the health hazards associated with PCBs, adequate measures should be taken during emergency situations to minimize exposure.
This guidance remains in effect through December 31, 2005, and applies only to damage and spills resulting from Hurricane Katrina and Hurricane Rita. The guidance in this document supersedes the PCB guidance in EPA's "Demolition Guidance For Structurally Unsound Buildings Damaged By Hurricane Katrina."
To the extent feasible, efforts should be made to perform the following steps:
Identifying Downed Electrical Equipment Which May Contain PCBs
Caution! Downed electrical equipment including transformers may still be energized which could cause injury. De-energized capacitors and batteries may still contain a charge.
Downed electrical equipment may contain PCBs
Handling the Electrical Equipment
If containers with drained liquids must be stored temporarily, they should be placed on hard surface areas, such as a concrete or asphalt parking lot for no more than 90 days.
If these containers must be stored temporarily, they should be placed on hard surface areas, such as a concrete or asphalt parking lot, for no more than 9 0 days
Handling the Spill
If these containers must be stored temporarily, they should be placed on hard surface areas, such as a concrete or an asphalt parking lot for no more than 90 days.
For further information, please contact the EPA Regional PCB Coordinator for your area.
EPA's guidance has been requested on the collection and disposal of debris from Hurricane Katrina, including vegetative, structural, and mixed debris. Various federal regulations may apply to portions of such debris, although some federal regulations such as the asbestos demolition NESHAP do not apply to debris from structures already demolished by natural disasters (as opposed to human demolition). We recognize that the extraordinary circumstances you face in removing the debris may make full compliance difficult. However, you should take the actions set forth below to the extent feasible.
The following guidelines are provided to help minimize the health, safety and environmental risks associated with burning hurricane debris.
Good faith efforts should be made to segregate wastes prior to burning. Insofar as conditions allow, segregate the following types of materials and stage them for subsequent appropriate disposal:
Burning should be conducted by or under the supervision of trained local, state or federal officials or their designees at specifically designated sites in those counties designated as disaster areas. Burning must be done in accordance with all local, state and federal emergency orders. Emergency officials should be notified of the location of burn sites in advance. Regarding location and operation of the burn sites, where feasible:
Initiative should be taken to keep the local public informed. These guidelines do not supersede emergency orders which may be issued.
Disposing of Debris and Removing Hazardous Waste
FEMA info on handling and disposing of hazardous debris and waste.
OSHA Resources on Disaster Recovery Hazards
List of documents to help business owners deal with workplace and facility cleanup after a disaster.
If you encounter hazardous material spills or discharges ...
The CDC's Chemical Hazards Guide provides advice for protecting yourself form chemicals released during a natural disaster.