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Research Project:
Air Quality and Wind Erosion Management and Technology
Location:
Land Management and Water Conservation Research
Project Number: 5348-11000-003-00
Project Type:
Appropriated
Start Date: Apr 12, 2001
End Date: Dec 31, 2004
Objective:
Develop a) new understanding of mechanisms of agricultural dust particulate occurrence and emission due to wind events and field operations, b) control practices for wind events including new conservation practices, crop rotations, and residue soil surface management, c) analyses for detection of particulate source, d) prediction techniques for wind erosion and dust emissions from a range of climates, soils, crops and machine operations, and e) PM10 emission factors for dryland farming systems.
Approach:
A variety of laboratory and field based measurement techniques will be developed and applied to define the potential and actual agricultural dust particulate emissions under a wide range of conditions. In-field methods will monitor meteorological variables, traditional horizontal wind erosion and vertical fine particulate dust emissions. Dust emitted from a variety of control practices will be monitored and described. Molecular methodology will be developed for source identification of air particulates in downwind filter receptors. Measurements will be made throughout the western U.S. with emphasis in the Pacific Northwest and California San Joaquin Valley. Emission factors will be assessed for tillage, sowing, harvest, and cropping systems. Close coordination will be maintained with numerous other agencies and USDA/ARS research stations such as those in Texas and Kansas. Control strategies will be developed and evaluated with field measurements, portable wind tunnels and iso-kinetic profiling instruments. FY04 Program Increase $201, 306. Replaced 5348-12000-004-00D. Replaced 5348-11000-002-00D (4/01).
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