Risky tap water may increase risk of bladder cancer

Risky tap water may increase bladder cancer risk - Scientists offer solutions for safe hydration

Risky tap water may increase bladder cancer risk – Scientists offer solutions for safe hydration

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Washington: A recent study by Prof. YU Wenzheng’s team highlighted the risk that high concentrations of disinfection byproducts in tap water can cause bladder cancer and proposed sustainable solutions such as ozone biofiltration and nanofiltration to increase the safety of drinking water. This research by researchers from the Research Center for Eco-Environmental Science of the Chinese Academy of Sciences has been published in Nature Sustainability.
The provision of safe and reliable drinking water is of fundamental importance. While disinfection is intended to make water safer to drink, by-products of chlorine-based disinfection are harmful substances that pose a long-term risk to public health.

In this study, the researchers conducted a national assessment of tap water across China. They found notable geographic differences in the concentration of disinfection byproducts in tap water across China, with higher concentrations in the northeast and central Yangtze River.

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Based on officially published disease data, the researchers then verified the spatial relationship between disinfection byproducts and bladder cancer. That is, regions with a high incidence of bladder cancer are characterized by significantly higher concentrations of disinfection byproducts than other regions.

However, the toxicity of disinfection byproducts is not only determined by their concentration, but also by their composition. Brominated disinfection byproducts are more toxic than those containing chlorine. Coastal areas with seawater intrusion showed higher brominated disinfection byproducts and associated toxicity.

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