Many county health departments are getting questions from their residents who have been affected by the smoke from the wildfire burning in Eastern North Carolina. The accompanying information has been provided to the local health departments by the Office of Public Health Preparedness and Response and is being provided to the media to help facilitate dissemination of the information to the public. Thank you for assisting us in that effort.
Q: What is the health threat from wildfire smoke?
A: Smoke from wildfires is a mixture of gases and fine particles from burning trees and other plant materials. Smoke can irritate your eyes or your respiratory system, and worsen chronic heart and lung diseases. How much and how long you are exposed to the smoke, as well as your age and degree of susceptibility play a role in determining whether or not someone will experience smoke-related health problems. If you are experiencing serious medical problems for any reason, seek medical treatment immediately.
Q: How can I tell if the smoke is affecting my family or me?
A:
* Smoke can cause coughing, scratchy throat, irritated sinuses, shortness of breath, chest pain, headaches, stinging eyes and runny nose.
* If you have heart or lung disease, smoke might make your symptoms worse.
* People who have heart disease might experience chest pain, rapid heartbeat, shortness of breath and fatigue.
* Smoke may worsen symptoms for people who have pre-existing respiratory conditions, such as respiratory allergies, asthma, and chronic obstructive pulmonary disease (COPD), in the following ways:
o Inability to breathe normally
o Cough with or without mucus
o Chest discomfort
o Wheezing and shortness of breath
* When smoke levels are high, even healthy people may experience some of these symptoms.
Q: How can I protect myself and my family from the harmful effects of smoke?
A: The best thing to do is to limit your exposure to the smoke. Specific strategies to decrease exposure to smoke include staying indoors whenever possible, using air conditioners (air conditioned homes usually have lower air exchange rates than homes that use open windows for ventilation), using mechanical air cleaners, keeping windows closed while driving in a vehicle, and minimizing other sources of air pollution such as smoking tobacco, using wood burning stoves, burning candles or incense and vacuuming.
Q: Will I suffocate in my house?
A: No. The most common call for evacuation during a wildfire is due to the direct threat of the fire, not smoke. Leaving the area of thick smoke may be an option for those who are sensitive to smoke. But it is often difficult to predict the duration, intensity and direction of smoke, making this an unattractive choice to many people. Those without air conditioning must also remember not to become overheated by closing all windows.
Q: Should I wear a dust mask or N95 respirator?
A: N95 respirators and dust masks are masks made of filtering material that fit over the nose and mouth. The filter material will filter out some of the small particles that may be found in smoke, but only if there is a good fit to the wearer’s face. It is also important to know that N95 particulate respirators and dust masks only filter particles, not toxic gases and vapors.
Most people will find it difficult to use the respirators and masks correctly for general use. For instance, it is impossible to get a good seal on individuals with facial hair. As a result, the respirator will provide little if any protection, and may offer the wearer a false sense of protection.
Filtering face-piece respirators and masks can make the work of breathing more difficult and can lead to increased breathing rates and heart rates. They can also contribute to heat stress. Because of this, respirator use by those with heart and respiratory diseases can be dangerous, and should only be done under a doctor’s supervision. Even healthy adults may find that the increased effort required for breathing makes it uncomfortable to wear a respirator for more than short periods of time. Decisions on whether to use respirators or masks as personal protection for people who must work outside should be made on a case by case, day by day basis.
Q: What is the health threat from wildfire smoke?
A: Smoke from wildfires is a mixture of gases and fine particles from burning trees and other plant materials. Smoke can irritate your eyes or your respiratory system, and worsen chronic heart and lung diseases. How much and how long you are exposed to the smoke, as well as your age and degree of susceptibility play a role in determining whether or not someone will experience smoke-related health problems. If you are experiencing serious medical problems for any reason, seek medical treatment immediately.
Q: How can I tell if the smoke is affecting my family or me?
A:
* Smoke can cause coughing, scratchy throat, irritated sinuses, shortness of breath, chest pain, headaches, stinging eyes and runny nose.
* If you have heart or lung disease, smoke might make your symptoms worse.
* People who have heart disease might experience chest pain, rapid heartbeat, shortness of breath and fatigue.
* Smoke may worsen symptoms for people who have pre-existing respiratory conditions, such as respiratory allergies, asthma, and chronic obstructive pulmonary disease (COPD), in the following ways:
o Inability to breathe normally
o Cough with or without mucus
o Chest discomfort
o Wheezing and shortness of breath
* When smoke levels are high, even healthy people may experience some of these symptoms.
Q: How can I protect myself and my family from the harmful effects of smoke?
A: The best thing to do is to limit your exposure to the smoke. Specific strategies to decrease exposure to smoke include staying indoors whenever possible, using air conditioners (air conditioned homes usually have lower air exchange rates than homes that use open windows for ventilation), using mechanical air cleaners, keeping windows closed while driving in a vehicle, and minimizing other sources of air pollution such as smoking tobacco, using wood burning stoves, burning candles or incense and vacuuming.
Q: Will I suffocate in my house?
A: No. The most common call for evacuation during a wildfire is due to the direct threat of the fire, not smoke. Leaving the area of thick smoke may be an option for those who are sensitive to smoke. But it is often difficult to predict the duration, intensity and direction of smoke, making this an unattractive choice to many people. Those without air conditioning must also remember not to become overheated by closing all windows.
Q: Should I wear a dust mask or N95 respirator?
A: N95 respirators and dust masks are masks made of filtering material that fit over the nose and mouth. The filter material will filter out some of the small particles that may be found in smoke, but only if there is a good fit to the wearer’s face. It is also important to know that N95 particulate respirators and dust masks only filter particles, not toxic gases and vapors.
Most people will find it difficult to use the respirators and masks correctly for general use. For instance, it is impossible to get a good seal on individuals with facial hair. As a result, the respirator will provide little if any protection, and may offer the wearer a false sense of protection.
Filtering face-piece respirators and masks can make the work of breathing more difficult and can lead to increased breathing rates and heart rates. They can also contribute to heat stress. Because of this, respirator use by those with heart and respiratory diseases can be dangerous, and should only be done under a doctor’s supervision. Even healthy adults may find that the increased effort required for breathing makes it uncomfortable to wear a respirator for more than short periods of time. Decisions on whether to use respirators or masks as personal protection for people who must work outside should be made on a case by case, day by day basis.
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