According to popular urban legend here in Mexico, wherever there is a treasure valuable buried:
Version #1: Toxic gas will be emitted when it is uncovered, and kill the finder.
Version #2: The "Blanca" will appear, a translucent-white figure of a woman. (In Spanish, they say: "Se aparece la Blanca".)
One of Mexico's two metal detector manufacturers includes three free gas masks with every detector purchase! The founder became filthy rich 55 years ago, by detecting with his Geiger counter where people reported seeing the "Blanca". See their page in English here:
Detectores S.A.
If this is so, would there be any advantages to adding gas detection to our metal detectors?
Now, I can imagine that buried metals (and dead bodies and garbage for that matter) might form some kind of gas resulting from chemical reaction to soils, or decomposition,etc. But is it lethal? Is it something we should be concerned about?
Now, I know of a few treasure hunters who do emit dangerous gases...

Version #1: Toxic gas will be emitted when it is uncovered, and kill the finder.
Version #2: The "Blanca" will appear, a translucent-white figure of a woman. (In Spanish, they say: "Se aparece la Blanca".)
One of Mexico's two metal detector manufacturers includes three free gas masks with every detector purchase! The founder became filthy rich 55 years ago, by detecting with his Geiger counter where people reported seeing the "Blanca". See their page in English here:
Detectores S.A.
If this is so, would there be any advantages to adding gas detection to our metal detectors?
Now, I can imagine that buried metals (and dead bodies and garbage for that matter) might form some kind of gas resulting from chemical reaction to soils, or decomposition,etc. But is it lethal? Is it something we should be concerned about?
Now, I know of a few treasure hunters who do emit dangerous gases...
