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Fatalities attributed to entering manure waste pits - Minnesota, 1992.

Authors
Madery-G; Parker-D; Shutske-J
Source
MMWR 1993 May; 42(17):325-329
NIOSHTIC No.
00235879
Abstract
The investigations of two incidents in which farm workers died after entering manure waste pits in Minnesota were summarized. The first incident occurred on August 8, 1992, when a 27 year old employee of a hog farm entered an outdoor manure pit to free a clogged pump intake in the pit. The man was overcome, and his uncle entered the pit to assist him and also was overcome. Both men were pronounced dead from hydrogen-sulfide (7783064) poisoning. When the atmosphere in the pit was subsequently tested, no measurable hydrogen- sulfide was reported. Weather conditions were different on the test day than on the day of the incident. In the second incident a 43 year old dairy farm owner and his 23 year old son died from asphyxiation after entering one of two adjacent manure waste pits underneath a barn. Apparently the men were using a pump located outside the barn to pump manure from the pits into the tank of a manure spreader. The father removed a steel grate cover, descend a ladder into the nearly empty pit, where he was overcome as he began to clear an obstruction. His son was found on top of him, apparently overcome during a rescue attempt. They both died of asphyxiation. An extensive editorial note discussed confined space hazards, confined space fatalities during rescue attempts, the contribution of weather conditions to the generation of gases in manure pits, and prevention of fatalities in manure waste pits.
Keywords
NIOSH-Author; Farmers; Animal-husbandry-workers; Livestock; Toxic-gases; Confined-spaces; Waste-disposal
CODEN
MMWRB6
CAS No.
7783-06-4
Publication Date
19930507
Document Type
Journal Article
Fiscal Year
1993
NTIS Accession No.
NTIS Price
Issue of Publication
17
ISSN
0892-3787
NIOSH Division
DSR
Source Name
Morbidity and Mortality Weekly Report
State
MN; WV
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