Benzoylecgonine is very stable. It can in fact be analyzed in tap water in communities that recycle waste water to determine how much cocaine is being used.
Indeed, but it is a fair question to ask: what is the actual concentration in the ocean? I did not read the study, possibly they used a concentration similar to the one encountered in oceans.
Seeing as this is about salmon, it’s probably more relevant to ask about the concentration in rivers. A river downstream from a reasonable size city likely has a not insignificant level. I assume the ocean is effectively nothing though.
Benzoylecgonine is very stable. It can in fact be analyzed in tap water in communities that recycle waste water to determine how much cocaine is being used.
Indeed, but it is a fair question to ask: what is the actual concentration in the ocean? I did not read the study, possibly they used a concentration similar to the one encountered in oceans.
Seeing as this is about salmon, it’s probably more relevant to ask about the concentration in rivers. A river downstream from a reasonable size city likely has a not insignificant level. I assume the ocean is effectively nothing though.