Ammonia Inhalants Enhance Psychophysiological Responses and Performance During Repeated High Intensity Exercise.

Ammonia inhalants (NH) are anecdotally used in competition by athletes for their purported stimulant effects. However, evidence on the efficacy of NH is conflicting, and little to no studies to date have investigated its effect on repeated exercise. The purpose of this study was to examine the effects of NH on psychophysiological responses and performance during repeated high-intensity exercise.

Mercury accumulation by largemouth bass (Micropterus salmoides) in recently impounded reservoirs.

Mercury levels of largemouth bass from three reservoirs in the southeastern United States were highest in the younger, relatively oligotrophic reservoirs and were significantly lower in an older, more eutrophic reservoir in the same drainage system. The reservoir with the highest mercury levels in bass is the reservoir farthest upstream, and is not subject to inputs of municipal or industral wastes. The source of mercury in these reservoirs appears to be the soil which formed theri original sediments.

Wildlife and environmental health: raccoons as indicators of zoonoses and pollutants in southeastern United States.

Inasmuch as terrestrial fauna are an integral part of our natural environment and are directly exposed to disease and pollutants, it follows that certain wild populations could serve to detect subtle alterations within ecosystems. A collection of studies on raccoons is presented to stimulate other researchers to develop the potential of our wildlife resources as monitors of environmental health. Raccoons have been used as serologic sentinels for St Louis encephalitis and Venezuelan equine encephalomyelitis.