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Three types of horizontal vortices observed in wildland mass and crown fires

Observation shows that three types of horizontal vortices may form during intense wildland fires. Two of these vortices are longitudinal relative to the ambient wind and the third is transverse. One of the longitudinal types, a vortex pair, occurs with extreme heat and low to…
Person:
Year: 1987
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke, Fire Behavior, Fuels, Prescribed Fire, Safety
Region(s): California, Eastern, Great Basin, Southwest, International
Keywords: Arizona, catastrophic fires, coniferous forests, convection, crown fires, Europe, field experimental fires, fire intensity, fire management, fire suppression, firebrands, flame length, France, fuel types, heat, heat effects, heavy fuels, ignition, laboratory fires, Michigan, Minnesota, mountains, national forests, Nevada, Pinus edulis, rate of spread, slash, smoke behavior, statistical analysis, temperature, vortices, wilderness areas, wildfires, wind, Wisconsin

Significance of particulate emissions

The advancement of technology relating to particulate emission is pointed out as a significant aspect of this nation's air pollution control efforts. Important factors include the ability of particulates: to cause poor visibility, to constitute a health hazard, to act as…
Person:
Year: 1975
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Safety
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: Clean Air Act, air pollutants, public health, particulate emissions, fine particulates

Firefighters' exposure to carbon monoxide on the Deadline and Outlaw fires

The Missoula Equipment Development Center (MEDC) monitored firefighters' exposure to carbon monoxide on two wildfires in CY 1974. On one fire most of the firefighters were exposed to levels of carbon monoxide (CO) higher than those permitted by the proposed standard that the…
Person:
Year: 1975
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Safety
Region(s): Great Basin, Northern Rockies
Keywords: C - carbon, CO - carbon monoxide, fire management, fire suppression, forest management, Idaho, smoke effects, smoke management, wildfires