The Algal Laboratory at AWQC can provide a range of tests to identify and quantify algae and cyanobacteria in freshwater (and marine) environments. Microscopic examination is used to identify both planktonic and benthic taxa from morphological criteria and enumerate cell abundance. Rapid turnaround for reporting is provided from a choice of algal scans (identification only), partial algal counts (selected species) and full algal counts. Estimates of cell biovolume for algal samples can also be offered as a measure of species specific biomass, using microscopy and analysis of digitised images, while total algal biomass can be analysed by spectrophotometric determination of Chlorophyll pigments. Other tests available through the Biology Unit include detection of odours by sensory analysis and toxicity testing of algal samples by mouse bioassay. Advice can also be provided on specific algal toxins and/or odorous compounds produced by algae and testing is also provided.