Beijing – Previous research had already cautioned about chemicals like bisphenol A, or BPA, known to cause hormonal imbalances, leaching from plastic containers. However, this latest study, published in the ‘Eco-Environment & Health’ magazine, highlights additional risks posed by plastic water bottles left under direct sunlight.

Researchers from China’s Jinan University analyzed the gases emitted from six types of plastic water bottles when exposed to sunlight and ultraviolet rays. The bottles, sourced from various countries, contained spring water, distilled water, and artesian water. The study revealed a complex mixture of chemicals emitted from the containers, with significant variation between different types of water. One of the notable chemicals detected was n-Hexadecane, which is highly toxic and carcinogenic, along with several other known carcinogens.

The study pointed out that although the volatilization of these potentially toxic compounds from a single bottle is minimal, even after prolonged sun exposure, the potential health risks associated with inhaling these chemicals when opening and drinking bottled water appear to be manageable. The researchers emphasized that understanding how environmental conditions influence the release of chemicals in bottled water is crucial for guiding manufacturers and regulatory bodies to ensure product safety and protect public health.

“Our findings provide compelling evidence that plastic packaging, when exposed to sunlight, can release toxic compounds that pose health risks,” the researchers stated. “Consumers should be aware of these risks, especially in environments where bottled water is exposed to sunlight for long periods.”

The study’s findings underscore the importance of proper storage of plastic water bottles to minimize exposure to harmful chemicals, advocating for increased awareness and regulatory measures to safeguard public health.