Near-toxic levels of mercury were recently discovered in the fur of mountain lions in the mountains of coastal California. Wet deposition of fog water, which is enriched in mercury, was suspected to be the cause. The foggy coast of California is also a major food growing zone, and we hypothesize that mercury in fog poses a risk to its residents through the diet. We propose to make measurements of mercury in crops and animal products from foggy and non-foggy areas.