Sodium Nitrate and Vultures
To answer the question, yes, we are very concerned about the fate of secondary consumers should they consume meat or other tissues from swine controlled through the use of sodium nitrite. As stated briefly in the article, SN is a commonly used food preservative and therefore somewhat safe in terms of an active ingredient for a toxicant. But it is highly unstable – therein lies the inherent problem as a substance applied in the environment. Stabilizing it is the trick and