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Unregulated Toxins Found in Popular Bottled Waters
16 Jan
Summary
- Dozens of unregulated harmful chemicals detected in bottled water.
- Bottled water had fewer disinfection by-products than tap water.
- Some grocery brands showed significantly higher cytotoxicity levels.
A recent study published in Science Direct has identified dozens of unregulated harmful chemicals, known as disinfection by-products (DBPs), present in popular brands of bottled water. While all tested bottled waters contained DBPs, the study authors note that the levels were generally lower than those found in tap water. This finding offers a more nuanced understanding of bottled water quality.
Despite the overall lower DBP levels compared to tap water, the research highlighted specific concerns. Certain grocery brands, particularly those using purified tap water, demonstrated significantly higher calculated cytotoxicity. Furthermore, unregulated DBPs, such as dibromoacetonitrile, a known carcinogen, were detected, although at low levels comparable to tap water.
Experts suggest that while DBPs are a concern, tap water remains a safe and practical choice for most. The study underscores the need for expanded regulation of DBPs in public drinking water to ensure broader public health protection. Consumers are advised to consider the environmental impact and cost of bottled water.
