and surfaces, wind, ground disturbance due to vehicle maneuvers, explosions, aircraft
operations, and other earth‐moving activities.
One issue relating to Dust / Smoke / Steam has been
identified as part of this JLUS.
DSS-1
Activities at Florence Military Reservation sometimes generate
dust.
Key Terms
Fugitive dust. Regulated particulate matter, which is not collected by a capture system,
which is entrained in the ambient air, and which is caused from human and/or natural
activities, such as but not limited to, movement of soils, vehicles, equipment, blasting,
and wind.
National Ambient Air Quality Standards. National Ambient Air Quality Standards
(NAAQS) are criteria promulgated by the U.S. Environmental Protection Agency to
characterize Criteria Air Pollutants.
Nonattainment. A geographic area in which the level of a criteria air pollutant is higher
than the level allowed by federal standards is identified to be in nonattainment.
Particulate Matter 10. Particulate Matter 10 (PM10) comprises dispersed airborne
particles that are smaller than 10 microns (1 micron = 10 ‐4 centimeters) and result from
activities such as vehicles traveling on unpaved roads, material handling, and wind.
Particles this small can be deposited deep into the respiratory system of organisms and
increase respiratory distress.
Particulate Matter 2.5. Particulate Matter 2.5 (PM2.5) comprises dispersed airborne
particles that are smaller than 2.5 microns and result from activities such as the
combustion of fuels in motor vehicles, power generators, industrial facilities, and the use
of residential fireplaces and wood stoves. Particles this small can be deposited deep into
the respiratory system of organisms, and elevated levels may aggravate respiratory and
cardiopulmonary problems.
5-28
Compatibility Assessment