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The disinfectant residues promote the leaching of water contaminants from plastic pipe particles

Environmental Pollution 2023 23 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Xiaoxia Wang, Chaochao Lai, Huan He, Huan He, Xiaoxia Yang, Xiaoxia Yang, Xiaoxia Yang, Xiaoxia Wang, Chaochao Lai, Xiaoxia Wang, Xiaoxia Yang, Xiaoxia Wang, Xiaoxia Wang, Fan Li, Kunqian Liu, Kunqian Liu, Xiaoxia Yang, Xiaoxia Yang, Xiaoxia Yang, Xiaoxia Wang, Kunqian Liu, Kunqian Liu, Kunqian Liu, Kunqian Liu, Kunqian Liu, Kunqian Liu, Kunqian Liu, Juhong Zhan, Xiaoxia Wang, Huan He, Fan Li, Fan Li, Fan Li, Juhong Zhan, Juhong Zhan, Juhong Zhan, Kunqian Liu, Xiaoxia Wang, Xiaoxia Wang, Xiaoxia Yang, Chaochao Lai, Chaochao Lai, Chaochao Lai, Xiaoxia Yang, Chaochao Lai, Xiaoxia Yang, Xiaoxia Yang, Xiaoxia Yang, Xiaoxia Wang, Bin Huang, Xuejun Pan Bin Huang, Xuejun Pan Huan He, Bin Huang, Bin Huang, Xuejun Pan Xuejun Pan Xuejun Pan Xuejun Pan Xuejun Pan Xuejun Pan Bin Huang, Xuejun Pan Xuejun Pan Xuejun Pan Xuejun Pan Xuejun Pan Xuejun Pan

Summary

This study found that trace amounts of disinfectants commonly used in water treatment can accelerate the aging of plastic water pipes, causing them to release more contaminants. When plastic pipe particles were exposed to chlorine-based disinfectants and ozone, they leached higher levels of organic chemicals and microplastics into the water. The findings raise concerns about how the interaction between water treatment chemicals and plastic plumbing may affect drinking water quality.

Polymers

PP PVC

Body Systems

Digestive

Models

Mouse

Study Type Environmental

Disinfection treatment is an indispensable water purification process, but it can leave trace concentrations of disinfectant in the purified water. Disinfectants oxidation can age plastic pipes and release hazardous microplastics and chemicals into drinking water. Lengths of commercially-available unplasticized polyvinyl chloride and polypropylene random copolymer water pipe were ground into particles and exposed to micro-molar concentrations of ClO, NaClO, trichloroisocyanuric acid, or O for up to 75 days. The disinfectants aged the plastic and changed its surface morphology and functional groups. Meanwhile, disinfectants could significantly promote the release of organic matter from plastic pipes into the water. ClO generated the highest concentrations of organic matter in the leachates from both plastics. Plasticizers, antioxidants and low molecular weight organic matter were detected in all of the leachates. Leachate samples inhibited the proliferation of CT26 mouse colon cancer and induced oxidative stress in the cells. Even trace concentrations of residual disinfectant can constitute a drinking water risk.

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