Scientists show reduced heavy metal toxicity in goldfish using hard water

When industrial effluents containing high levels of heavy metals are discharged into fish bodies, they pose a serious threat to aquatic ecosystems. One such heavy metal, zinc, is required by organisms in miniscule amounts, but if it accumulates in higher concentrations, zinc can trigger oxidative stress in the fish body. This causes metabolic, physiological, and cellular damage, including protein degeneration and eventually, cell death. Moreover, humans who consume this fish are also exposed to a high level of zinc, resulting in similarly dangerous consequences for the human body.

from Phys.org - latest science and technology news stories https://ift.tt/CIypSwJ