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Hydrogen sulfide gas emissions in the human-occupied zone during disturbance and removal of stored spent mushroom compost
Date Issued
2013-12
Date Available
2014-01-20T09:35:11Z
Abstract
Hydrogen sulfide (H2S) gas levels were monitored in the human-occupied zone at four spent mushroom compost (SMC) storage sites during removal of SMC for application on agricultural land. During SMC removal operations, H2S gas monitors were mounted on the outside of the tractor, positioned at the SMC periphery, and worn by individual tractor drivers. The highest H2S concentrations (10 s average) detected outside the tractor, at the SMC periphery, and for the tractor driver were, respectively, 454, 249, and 100 ppm for the outdoor sites and 214, 75, and 51 ppm for the indoor sites. The highest short-term exposure values (STEV, over a 15 min period) outside the tractor, at the SMC periphery, and for the tractor driver were 147, 55, and 86 ppm for the outdoor sites and 19, 9, and 10 ppm for the indoor sites. The values exceeded the current maximum permissible concentration limit of 10 ppm for all the sites except for the SMC periphery and tractor driver at the indoor sites. Results suggest that H2S levels detected at indoor storage sites during SMC removal are lower compared to outdoor storage sites. Results indicate that there is a substantial health and safety risk associated with working in the vicinity of stored SMC when it is being disturbed and removed for land application, and that the risk is great for the tractor driver. This article discusses possible control measures and lists recommendations to reduce the risks.
Other Sponsorship
Teagasc Walsh Fellowship
Type of Material
Journal Article
Publisher
American Society of Agricultural and Biological Engineers
Journal
Journal of Agricultural Safety and Health
Volume
19
Issue
4
Start Page
277
End Page
291
Copyright (Published Version)
2013, American Society of Agricultural and Biological Engineers
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
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Hydrogen_Sulfide_Gas_Emissions_in_the_Human-Occupied_Zone_during_Disturbance_and_Removal_of_Stored_Spent_Mushroom_Compost.pdf
Size
1.29 MB
Format
Owning collection
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