Ozone-Safe Refrigerants Have Contaminated the Planet with Toxic Forever Chemicals

New Research on Toxic Chemicals

According to НВ — Техно: June 9, 10:30 PM – A recent study by Lancaster University has uncovered that substitutes for ozone-depleting refrigerants, specifically chlorofluorocarbons (CFCs), have become a source of toxic forever chemicals, particularly trifluoroacetic acid (TFA). Between 2000 and 2022, approximately 335,500 metric tons of this acid fell to Earth's surface. The primary contributors to TFA are ozone-friendly CFC replacements and certain types of inhaled anesthetics. This finding sheds light on an unintended consequence of efforts to repair the ozone layer, raising concerns about long-term environmental and health risks.

Impact of Trifluoroacetic Acid on Ecosystems

Trifluoroacetic acid belongs to the family of per- and polyfluoroalkyl substances (PFAS), notorious for their persistence in nature. These compounds hardly break down, leading to their accumulation in the environment. The European Chemicals Agency classifies TFA as harmful to aquatic life, while Germany's Federal Office for Chemicals has proposed labeling it as potentially toxic to human reproduction.

Researchers note that TFA has been detected in human blood and urine, and nearly all TFA found in the Arctic originates from ozone-safe CFC substitutes. Analysis of Arctic ice cores confirms the long-range transport of these gases, highlighting their global reach. Additionally, a new generation of refrigerants for car air conditioners, such as HFO-1234yf, is exacerbating the issue.

Scientists predict that the peak annual production of TFA will occur between 2025 and 2100. Consequently, efforts to restore the ozone layer may give rise to new ecological challenges, and this study underscores the need for rigorous monitoring and regulation of such chemicals.

The research emphasizes the necessity of a cautious approach when introducing new refrigerants, which, while replacing ozone-harming substances, may carry their own negative consequences for the environment and public health.

Controlling the use and release of these chemicals is becoming increasingly urgent in the context of global ecosystem conservation efforts. Without proper regulation, new chemical compounds could pose a serious threat, demanding immediate action from national governments and international organizations.