Fate and biological effects of cadmium introduced into channel microcosms
Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory, 1979 - Aquatic ecology - 157 pages
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1977 SAMPLING DATE algae algal aufwuchs aufwuchs community benthic biological biomass bluegills body burdens Cadmium Cadmium concentrations cadmium inputs calculated across sampler calculated by summation Cd accumulation Cd exposure Cd inputs Cd levels Cd toxicity Cd uptake Cd/L Ceratopogonidae channels receiving Cd chironomids chlorophyll collected confidence intervals indicated contamination control channels Copepods crayfish cycling deionized water densities determined Difflugia diffusissimus diversity index dry weight basis ecosystem effects of Cd elimination Environ Environmental Ephemeroptera error confidence intervals Family fluminea Giesy head pools heavy metals heterotrophic hymenaea increased inputs were terminated invertebrate leaf litter leaf material long term glass macroinvertebrate macrophytes Mean Cd concentrations mosquitofish Odonata organisms periphyton pg Cd pg Cd/g plants pollution populations reported sampler sampler by sampling SAMPLING DATE Figure sampling period sediments significantly species standard error confidence standing crop Table tail pools taxa term glass slides tion values
Page ii - US Environmental Protection Agency, and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the US Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.
Page iii - As part of this Laboratory's research on the occurrence, movement, transformation, impact, and control of environmental contaminants, the Technology Development and Applications Branch develops management or engineering tools for assessing and controlling adverse environmental effects of non-irrigated agriculture and silviculture.
Page 157 - TECHNICAL REPORT DATA (Please read Instructions on the reverse before completing) 1. REPORT NO.
Page 156 - GJ Leversee and DR Williams, 1977. Effects of naturally occurring aquatic organic fractions on cadmium toxicity to Simocephalus serrulatus (Daphnidae) and Gambusia affinis (Poeciliidae). Water Res., 11, 1013-1020.
Page 128 - EM. 1972. Technique for measuring metallic salt effects upon the indigenous heterotrophic microflora of a natural water.
Page 141 - RATTONETTI, A. 1974. Determination of soluble cadmium, lead, silver and indium in rainwater and stream water with the use of flameless atomic absorption. Anal. Chem.