ИСТИНА

Algae are widely used due to the availability of cultivation conditions and high reproducibility algotest results. Freshwater and marine algae are used to estimate the toxicity of drinking, natural and wastewater, water extracts from soils, sewage sludge and production and consumption waste. The presence of dissolved organic matter in the samples, stimulating the growth of algae and the intensity of chlorophyll fluorescence, can significantly affect the result of algae tests, and therefore on the decision on the presence or absence of a toxic effect. For this reason, algae are often the least sensitive test culture, which should be considered when choosing a test system. Keywords: algae testing, freshwater, and marine algae, dissolved organic matter, toxicity, fluorescence