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Health hazard evaluation report: HETA-91-097-2240, New York Center for Agricultural Medicine and Health, Cooperstown, New York.

Authors
Kullman-GJ; Jones-WG; Piacitelli-CA
Source
NIOSH 1992 Jul; :1-25
NIOSHTIC No.
00210208
Abstract
In response to a technical assistance request from the New York Center for Agricultural Medicine and Health, Cooperstown, New York a joint investigation was undertaken to assess the effectiveness of a dust control method. Air samples were collected to assess the effectiveness of water applied to hay bales in reducing airborne dust concentrations during the chopping of bedding at dairy farms (SIC-0241). Eight different barns were sampled over a 4 day period. During dry chopping operations, the average personal exposure to inhalable dust was 11.31mg/m3. The average exposure from wet chopping operations was 2.76mg/m3. The average area inhalable dust concentration from dry chopping was 11.08 mg/m3 and from wet chopping was 2.65 mg/m3. Endotoxin concentrations found on personal inhalable dust samples during dry sampling conditions had an average of 5,968 endotoxin units (EU) per cubic meter (m3) of air. Samples from wet chopping operations had lower endotoxin concentrations with an average of 1260 EU/m3. Fungal concentrations averaged 6.1x10(6) colony forming units per cubic meter (CFU/m3) in dry conditions and 4.9x10(5) CFU/m3 in wet conditions. Bacterial concentrations were also lower during wet chopping. The authors conclude that wet chopping significantly reduced the concentration of airborne dusts, endotoxins, viable fungi, mesophilic bacteria and gram negative bacteria.
Keywords
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; HETA-91-097-2240; Region-2; Dust-control; Plant-dusts; Airborne-dusts; Organic-dusts; Animal-husbandry; Air-quality-monitoring; Microorganisms; Hazard-Unconfirmed; Author Keywords: Dairy Farms; bedding chopping; organic dusts; fungi; bacteria; endotoxins
Publication Date
19920701
Document Type
Hazard Evaluation and Technical Assistance; Field Studies
Fiscal Year
1992
NTIS Accession No.
PB93-120483
NTIS Price
A03
Identifying No.
HETA-91-097-2240
NIOSH Division
DRDS
SIC Code
0241
Source Name
National Institute for Occupational Safety and Health
State
NY; WV
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