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Exposure in poorly ventilated , enclosed , or low-lying areas can result in asphyxiation . Users are cautioned against abuses resulting from manipulation or misrepresentation , however . Eggs laid by the females on or near the base of canola plants hatch into maggots which begin feeding , resulting in yield losses of as much as 20 % . This may enable the successful grafting of stem cells to repair organs and tissues that are damaged as a result of disease processes . The accumulation of toxic substances as a result of kidney disorders may often lead to peripheral neuropathy . Nitrogen dioxide is heavier than air , such that exposure in poorly ventilated , enclosed , or low-lying areas can result in asphyxiation .