2 ms·
A weird approach to bioaccumulation which gets worse the higher in trophic level you go. Things like clams and sardines have the lowest levels of mercury etc.
by Mistletoe 2y ago
A weird approach to bioaccumulation which gets worse the higher in trophic level you go. Things like clams and sardines have the lowest levels of mercury etc. Swordfish and big tuna the worst.
- bell-cot 2y agoHistorically, the mussels harvested for eating have mostly lived very near the shoreline, and in areas with higher-density human populations. So their diets contained enormously higher concentrations of civilization's myriad water pollutants, compared to big deep-water fish.
- Mistletoe 2y agoI don't know if that is right. https://onnalomd.com/blog/fish-mercury-pcb-levels https://onnalomd.com/blog/fish-mercury-pcb-levels Mussels PCBs is 0.8-7 ng/g and albacore tuna is 100. Mercury looks similar. I do notice that sardines seem higher in PCBs than I would have expected but their mercury is low.