When it comes to drinking from plastic bottles left in a hot car, the main concern is the presence of microplastics and chemicals that can leach from the bottle.
Research indicates that antimony, a substance that can lead to symptoms similar to arsenic poisoning in high concentrations, can leach into water from PET plastic commonly found in disposable water bottles. The leaching of antimony increases significantly at temperatures above 45⁰C (113⁰F), but it generally remains below the drinking water restrictions set by WHO.
In addition to antimony, microplastics are also a concern in bottled water, with studies showing that the concentration remains relatively stable until temperatures exceed 80⁰C (176⁰F).
This article addresses the safety of drinking from a plastic bottle left in a hot car, a question posed by Kian Pearce from Chichester.
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