Publications by authors named "Barry Mower"
Adverse effects of pulp and paper mill effluent on fish populations have been well documented in many countries over the last two decades. Some of the initial studies were at mills with conventional chlorine bleaching and no secondary effluent treatment. Following installation of secondary treatment, changes in bleaching technology to elemental chlorine-free bleaching, and other process changes, adverse effects on fish were reduced or eliminated at some mills.
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- Anthropogenic mercury (Hg) inputs have surged in the last century, increasing methylmercury (MeHg) levels in aquatic systems, which pose health risks to the environment and humans.
- The common loon (Gavia immer) serves as a bioindicator for assessing the toxic effects of Hg in freshwater, revealing significant adverse impacts on behavior and reproductive success tied to increasing MeHg body burdens over an 18-year study.
- Findings indicate that loons with elevated Hg levels exhibit concerning behaviors and reduced reproductive rates, highlighting the urgent need for standardized monitoring to address mercury contamination impacts on breeding populations and aquatic ecosystems.
Background mercury concentrations in river water in Maine, U.S.A.
Environ Monit Assess
December 2003
Mercury concentrations in 58 rivers in Maine was measured to range from below detection up to 7.01 ng L(-1) and averaged 1.80 +/- 1.
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