Best Practices for the Reduction of Air Emissions From Construction ...

CHEMINFO
Actions to Reduce Emissions - Any applications of
technologies or practices that contribute to reducing
pollutant releases to the environment.
Active Operation - activity capable of generating
fugitive dust, including any open storage pile,
earthmoving activity, construction/demolition
activity, disturbed surface area, and non-emergency
movement of motor vehicles on unpaved roadways
and parking lots.
Anemometer – device used to measure wind speed
and direction.
Apron – material (e.g., asphalt, gravel) that covers a
distance of the path travelled by construction vehicles
at the entry/exit points from construction sites.
Asphalt – a brownish-black solid or semisolid
mixture of bitumen obtained from native deposits or
as a petroleum by-product and used in roofing and
road building.
Bulk Material - any material including but not
limited to earth, rock, silt, sediment, sand, gravel,
soil, fill, aggregate less than 2 inches in length or
diameter, dirt, mud, demolition debris, trash, cinders,
pumice, saw dust and dry concrete, which are
capable of producing fugitive dust at a construction
site.
Coal Tar Pitch – a thick, dark, and sticky substance
obtained from the distillation residue of coal tar.
Construction Activities – any on-site activities
preparatory to or related to the building, alteration,
rehabilitation or improvement of property, including,
but not limited to the following activities: grading,
excavation, trenching, loading, vehicular travel,
crushing, blasting, cutting, planning, shaping,
breaking, equipment staging/storage areas, weed
abatement activities or adding or removing bulk
materials from storage piles.
Cutback Asphalt – asphalt cement that has been
liquefied by blending with petroleum solvents
(diluents). Upon exposure to atmospheric conditions,
the diluents evaporate, leaving the asphalt cement to
perform its function.
Glossary of Terms
Demolition Activities – the wrecking or taking out
of any load-supporting structural member of a
structure or building and related handling operations
or the intentional burning of any structure or
building.
Disturbed Surface Area – portion of the earth’s
surface having been physically moved, uncovered,
destabilized, or otherwise modified from its
undisturbed natural condition, thereby increasing the
potential for emission of fugitive dust. Disturbed
surface area does not include areas restored to a
natural state with vegetative ground cover and soil
characteristics similar to adjacent natural conditions.
Dust Emissions - Releases to air of fine particulate
matter (usually PM10, PM2.5)
Dust Generating Operation - any activity capable of
generating fugitive dust, including but not limited to,
land clearing, earthmoving, weed abatement by
discing or blading, excavating, construction,
demolition, material handling, storage and/or
transporting operations, vehicle use and movement,
the operation of any outdoor equipment or unpaved
parking lots.
Dust Suppressant – water, hygroscopic materials, or
non-toxic chemical stabilizers used as soil treatment
to reduce fugitive dust emissions.
Earthmoving Operation – the use of any equipment
for an activity which may generate fugitive dust, such
as, but not limited to, cutting and filling, grading,
levelling, excavating, trenching, loading or
unloading of bulk materials, demolishing, blasting,
drilling, adding to or removing bulk materials from
open storage piles, back filling, soil mulching,
landfill operations, or weed abatement by discing or
blading.
Emulsified Asphalt – an emulsion of asphalt cement
and water that contains a small amount of an
emulsifying agent. It is a heterogeneous system
containing two normally immiscible phases (asphalt
and water) in which the water forms the continuous
phase of the emulsion and minute globules of asphalt
form the discontinuous phase.
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