Want to know more about the Map and wildfire smoke and your health?
by Admin
Posted on 19-09-2023 01:00 PM
Research shows that wildfires can cause a large increase in gaseous air pollutants such as carbon monoxide, nitrogen dioxide, acetaldehyde and formaldehyde (finlay et al.
, 2012). Wood smoke has high levels of particulate matter and toxins, adverse health consequences can occur as a result of short- or long-term exposure. Respiratory morbidity predominates, but cardiovascular, opthalmic and psychiatric problems can also result (hpi). Wildfires represent a hazard that is primarily influenced by humans and thus to a degree can be predicted, controlled and, in many cases, prevented. Wildfire occurence, characteristics and impacts are closely linked to other hazards: droughts, heat waves and extreme weather events can influence
fire
intensity and severity and thus the duration, size and controllability of wildfires.
Geoscience helps to inform decisions before, during, and after wildfires. Meteorologists observe weather patterns and issue weather forecasts that warn when “fire weather” is imminent, which allows land managers and state and local agencies to be alert for hot, dry, and/or windy conditions that may exacerbate wildfire occurrence and severity. Meteorologists can also help predict where smoke is likely to affect public health to improve prescribed fire programs and to aid in wildfire response. Fire scientists study the relationships between fire and environmental conditions to improve prescribed fire program efficacy as well as wildfire preparedness and response. Climatologists and paleoclimatologists study the frequency of past fires and droughts to provide information on the likelihood of future severe droughts, which can exacerbate wildfire conditions.
Larger and more intense wildfires are creating the potential for greater smoke production and chronic exposures in the u. S. , particularly in the west. Wildfires increase air pollution in surrounding areas and can affect regional air quality. The effects of smoke from wildfires can range from eye and respiratory tract irritation to more serious disorders, including reduced lung function, bronchitis, exacerbation of asthma and heart failure, and premature death. Children, pregnant women, and the elderly are especially vulnerable to smoke exposure. Emissions from wildfires are known to cause increased visits to hospitals and clinics by those exposed to smoke. It is important to more fully understand the human health effects associated with short- and long -term exposures to smoke from wildfires as well as prescribed fires, referred together as wildland fires.
What to do in a wildfire
Fire danger in a wildland setting varies with weather conditions: drought , heat, and wind participate in drying out the timber or other fuel, making it easier to ignite. Once a fire is burning, drought, heat, and wind all increase its intensity. Topography also affects wildfire, which spreads quickly uphill and slowly downhill. Dried grass, leaves, and light branches are considered flash fuels; they ignite readily, and fire spreads quickly in them, often generating enough heat to ignite heavier fuels such as tree stumps, heavy limbs, and the organic matter of the forest floor. Such fuels, ordinarily slow to kindle, are difficult to extinguish.
In the wake of maui's deadly wildfires—where many died, and a historic town once known as the capital of hawaii's monarchy was destroyed—residents and tourists are reeling from the damage. The fires that burned through the island were worsened by intense winds from a nearby hurricane and drought conditions. Some experts have also said invasive grasses not native to the island created more flammable conditions that fed the fire's flames. Hawaii is not historically known for wildfires, but—like many parts of the world—is seeing more intense fires because of climate change and mismanaged land. Wildfires can burn millions of acres of land at shockingly fast speeds, consuming everything in their paths.
A wildfire, forest fire, bushfire, wildland fire or rural fire is an unplanned, uncontrolled and unpredictable fire in an area of combustible vegetation. Depending on the type of vegetation present, a wildfire may be more specifically identified as a bushfire ( in australia ), desert fire, grass fire, hill fire, peat fire, prairie fire, vegetation fire, or veld fire. Some natural forest ecosystems depend on wildfire. Wildfires are distinct from beneficial human usage of wildland fire, called controlled or prescribed burning , although controlled burns can turn into wildfires. Modern forest management often engages in prescribed burns to mitigate risk and promote natural forest cycles.
National preparedness level 3 as of september 7, 2023 at 7:30 a. M. Mdt (on a scale from 1 to 5) current hours for the national fire information center are (mst) 8:00 am - 4:30pm, monday - friday 208-387-5050 this report will be updated monday through friday. Please check the imsr for more information. September 18, 2023 two new large wildfires were reported one in montana and one in oregon. Sixty-seven large wildfires have burned 480,604 acres in 12 states. More than 9,000 wildland firefighters and support personnel are assigned to incidents across the nation. This includes 155 crews, 411 engines, 83 helicopters, and 14 incident management teams.