" (Murphy, 2009)
This is held by Murphy to be what is wanted since high carbon dioxide levels help to maintain high quality silage." (2009) Simultaneously, the gas that is "odorless and colorless" is stated to be that which is dangerous. The gas is stated to replace the oxygen in the silo and since this gas is present in high concentrations the individual receives very little in the way of warning that the gas is about to overcome them. This gas is stated to be characterized by "…a strong bleach-like odor and low lying yellow, red, or dark brown fumes. Unlike carbon dioxide, nitrogen dioxide levels reach a peak about three days after harvesting and rapidly begin to decrease thereafter particularly is the silo is ventilated." (Murphy, 2009)
Sealed silos are specifically designed so that there is no necessity to enter them however, there are various gases present in convention silos and in open-top silos however the largest presence is that of nitrogen dioxide and this gas is stated to be "highly toxic…[and]…characterized by a strong bleach-like odor and low lying yellow, red, or dark brown fumes." (Murphy, 2009) Nitrogen dioxide levels are stated to peak at approximately three days following harvest and to begin a rapid decline and this is especially true in vented silos.
A. Harms
Harm caused by nitrogen dioxide include: (1) severe irritation to nose and throat; and (2) inflammation of the lungs. (Murphy, 2009) Since there is little in the way or pain or discomfort following exposure, this gas is particularly dangerous because it may be inhaled without the individual realizing it due to lack of serious effects. This is sometimes fatal as individuals are known to die in their sleep following exposure due to fluid collection in the lungs.
B. Safety Practices
Recommended safety practices include: (1) provide good ventilation whenever possible in and around the silo when silage is fermenting; (2) keep door...
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