Bioaccumulation of this conservative waste in the living organisms can provide a better understanding

Thank you Abhijit Mitra ! Can a simple sampling on each living organism (e.g. sea grass and fish) can affirm the uptake of organic mercury?

The US has the National Mercury Laboratory that might help. In one of our reports on Researchgate, I uploaded about monitoring on the Francis Marion National Forest. Many black water streams with headwaters in wetlands have high methyl mercury. The accumulation of methyl mercury is most notable in carnivorous fish, but I have also seen reports that mosquito fish also accumulate to high levels. The fatty part of the fish we sampled was the common approach to test for mercury accumulation. As I remember, we found much less in sediment and water samples. I would not expect sea grass to be an efficient accumulator, but since growing in wetlands conditions, maybe worth a test or discuss with the US National Mercury Lab or active mercury scientists. I don’t know if David Krabbinhoff (spelling?) is still the Director, but he has published heavily on the subject. Waterbirds or other animals that feed heavily on carnivorous fish may also be worth testing. I was told that the mercury tends to accumulate in the fatty tissues, but you might want to confirm that.