While atmospheric mercury deposition is ultimately the main source of mercury to most freshwaters, many rivers and lakes receive most of their mercury loads from atmospheric deposition that first passes through terrestrial systems. Reed [...]
In most regions, it is not possible to monitor or simulate every lake. There are simply too many waterbodies. At the same time, no single waterbody is representative of all lakes and rivers in a [...]
The saying “you are what you eat” holds true for methylmercury in fish, as fish obtain most of their methylmercury from their diet. Fish mercury concentrations are also affected by processes within the fish [...]
Fish mercury concentrations in reservoirs can increase several times above background levels, peak 5-15 years after flooding, and take 2-3 decades to recover to levels within the natural range for lakes. Some [...]
Fish mercury concentrations in lakes can exceed standards for commercial sale and result in consumption advisories for individuals. Fish mercury concentrations in lakes can exceed standards for commercial sale and result in consumption advisories [...]
In the late 1980s, monitoring by Florida state agencies showed high levels of mercury in fish from some areas in Everglades. The problem was due to a combination of relatively high atmospheric mercury deposition [...]