Definition and Judgment Method of Water Toxicity - ToxAlarm Online Warning System

Water is the most precious resource that cannot be replaced. On a global scale, water resources are becoming scarcer and can only be guaranteed through strict water market regulation and long-term water quality management.

Water quality is sensitive, water supplies are increasingly in short supply worldwide, and pollution can be a significant threat to humans and the environment. The applicability of past test methods in monitoring drinking water and surface water is limited.

Toxicity can be described as the direct detrimental effect of a substance on an organism. This effect is also possible in the presence of lower concentrations of toxic substances, and these effects depend on the culture time and dosage.

Certain test methods are used in the market to detect toxicity. However, these test methods cannot accurately ascertain which toxins are present. Use fish, algae or luminescent bacteria to test whether a water sample has a toxic effect on an organism.

The problem with these methods: Many organisms are difficult to obtain and culture.

For example, algae can be cultured in the laboratory, but only for a specific stage of their life cycle, and many designated test organisms are not sensitive enough or sensitive to specific substances, for example, algae It is strongly reflected in pests and not so strongly reflected in other substances.

In addition, organisms may be resistant to toxins, which of course may lead to inaccuracies in the test results. Due to the slow response to pollutants, long-term culture is required, which is also a problem.

Once the toxins are present, the entire measurement system is usually damaged, which means that it is necessary to replace the test organisms. Therefore, the application of these methods in continuous online monitoring has limitations.

The ToxAlarm online warning system developed and developed by LAR in Germany is an online measurement system equipped with an early warning system. With 25 years of experience in the field of water quality analysis , Lal has developed an online early warning system. The system significantly reduces costs, maintenance and operating costs, including highly sensitive, self-propagating fungus cultures, which are tested in 5 minutes and continuously tested for toxicity of water samples.