Abstract/Introduction
The frequent occurrence of water pollution incidents brings considerable impacts on public health and stable industrial production. To prevent major contamination events, regulatory authorities encourage the adoption of advanced monitoring technologies. Among these technologies, online biological toxicity monitoring serves as an important part of comprehensive real-time water quality surveillance, and an effective method for risk prevention and loss reduction.
It is necessary to integrate biological toxicity assessment into aquatic monitoring frameworks. With continuous industrial development and rising consumption of chemical substances, aquatic ecosystems have been affected to a certain extent, and water bodies are fundamental to human survival. Meanwhile, sudden environmental contingencies such as natural disasters, industrial accidents and man-made pollution may trigger abrupt changes in water quality. In particular, leaks of petrochemical feedstocks and hazardous materials during production, transportation and storage can cause damage to water bodies, making water environment safety management a key focus for the industry.
Past pollution cases demonstrate the hazards of environmental risks. For example, copper sulfate leakage once caused mass fish mortality, and cadmium contamination posed threats to drinking water safety. Various pollution incidents remind the industry to improve water quality management plans.
Online monitoring systems generally consist of three core components: conventional multi-parameter sensors, specific pollutant detectors and biological toxicity analyzers. The coordinated application of the three types of equipment forms the foundation for building a water quality early warning system. Continuous improvement of the early warning system, monitoring capacity and environmental emergency response requires supporting technological upgrades. Online biological toxicity monitoring acts as an important indicator to safeguard drinking water sources.
To meet such application demands, Hangzhou Modi–Tech has developed the WTox-8000 Online Water Biological Toxicity Analyzer. Adopting the bioluminescence inhibition assay (BIA) with Vibrio fischeri, the instrument measures variations in bacterial luminescence intensity after exposure to water samples to determine water toxicity rapidly and accurately. The analyzer can detect around 5,000 potential toxic substances and delivers broad-spectrum monitoring capacity for emerging contaminants.
