The toxicity of mixtures of copper, zinc, and diazinon were determined for Ceriodaphnia
dubia using 7‐d survival and reproduction tests. Fifteen treatments, including combinations …

Diazinon and copper are two contaminants that are widely found in urban streams and in
municipal wastewater effluents. Because these contaminants may be found concurrently, the …

Previous research done on the effects of contaminant mixtures has been evaluated primarily
by using acute exposures. While this was an important initial step, characterizing the effects …

Investigations were conducted to determine acute (48‐h) effects of cadmium and zinc
presented individually and in combination on Ceriodaphnia dubia, Daphnia magna …

Acute and chronic bioassays were conducted to determine the effects of copper, lead, and
zinc mixtures on Ceriodaphnia dubia and Daphnia carinata. Copper, lead, and zinc …

Dazinon is an organophosphorous pesticide widely found in municipal effluents as well as
in agricultural and urban storm‐water discharges. Ammonia is frequently also present in …

Diazinon and chlorpyrifos are two organophosphorous pesticides widely found in municipal,
agricultural, and urban storm water discharges. Because they are often found concurrently …

The speciation and bioavailability of metals are known to be affected by pH. Although many
studies have focused on effects on metals of pH changes resulting from lake acidification (ie …

The purpose of this study was to evaluate the effects of four diets on the results of seven-day
Ceriodaphnia dubia toxicity tests. Survival and reproduction were used as indices to detect …

Many human activities increase concentrations of major geochemical ions (Na+ 1, K+ 1, Ca+
2, Mg+ 2, Cl− 1, SO4− 2, and HCO3− 1/CO3− 2) in freshwater systems, and can thereby …