使用直接測汞儀測定魚、貝類、龍蝦和比目魚中的汞含量（英文版）

Approximately 2700 - 6000 tons of mercury are released into the atmosphere every year. Once airborne, mercury can travel thousand of miles from its generation point. Eventually, it precipitates onto the land and water. And once it enters water, mercury is transformed  by microorganisms into methylmercury, the most toxic and dangerous  form. of mercury. Methylmercury bioaccumulates most notably in fish, increasing in concentration as it moves up the food chain.