Laboratory conducts an array of toxicity bioassays. protection laws. However, since an overwhelming amount of compounds has to be tested, it may be
A toxicity bioassay may be run as a screening test,
worthwhile to use an even simpler and more rapid where the toxicity of a sample is compared to that
test for prescreening.
of a control water, or as a definitive test, where several portions of the sample are diluted with
Additionally, the results of a toxicity bioassay may
aquatic organisms. be measured as either an acute response such as
mortality or a chronic response such as growth or
ALS Laboratory Group (M) Sdn Bhd has examined reproductive effects.
Microtox toxicity methods by using Vibrio fischeri markers. The toxicity tests can be used to give a
Applications of acute toxicity test include
screening assessment of the likelihood of wastewater treatment plant pretreatment, waste
contamination being present. These methods can stream and landfill leachate monitoring, quality
be applied in all types of water, including surface
control testing of raw material lots, and Toxicity
and ground water, wastewater, drilling sump fluids