Zinc phosphide is added to rodent baits as pastes. The zinc phosphide on contact with gastric acid or water generates phosphine gas (PH3) which is absorbed in the blood through gastrointestinal mucosa and distributed to the body’s tissues (between 6.5 and 21 min is the time it takes to produce a large volume of lethal phosphine). The liberated phosphine is responsible for the toxicity (Bilics et al., 2020; Juárez-Martínez ET AL., 2023).
Phosphine is absorbed through the stomach and intestine into the blood stream where it causes systemic effects.
Zinc phosphide is absorbed by inhalation . . .
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