Study Links Plasticizer Exposure to Kidney Function Changes

A new study in the Journal of Chromatography A has found that recycling polyethylene terephthalate (PET)—widely used in food packaging—can increase toxic chemical levels. Researchers discovered that recycled PET samples contained significantly higher concentrations of volatile organic compounds (VOCs) and phthalates compared to virgin PET. The contamination intensified with greater recycled content and more complex recycling processes, indicating a strong correlation between recycling intensity and chemical buildup.

Experts warn that these rising VOC levels raise serious concerns about the safety of recycled plastics, especially for food-contact applications. Toxic substances can enter plastics at any stage of their lifecycle, and since manufacturers are not required to monitor chemical composition, recycled materials may accumulate unknown contaminants. Processes such as shredding, heating, and washing can also generate new toxic byproducts. The findings highlight the urgent need for stricter regulations to ensure consumer safety and limit harmful chemical exposure from recycled plastics.

12-11-2025