Tag

Atmospheric Deposition

All articles tagged with #atmospheric deposition

environment2 months ago•5 min saved

Silent Global Rain: CFC Replacements Spawn Planet-Wide Forever Chemicals

Lancaster-led research estimates about 335,500 tonnes of trifluoroacetic acid (TFA) formed from CFC replacements and certain anesthetics and deposited worldwide between 2000–2022, with the amount likely rising for decades; Arctic ice cores and global rainfall data show widespread distribution, underscoring TFA's persistence and potential ecological/health risks and prompting calls for international monitoring and action.

via ScienceDaily|

#atmospheric-deposition #cfc-replacements #environment

environment2 months ago•6 min saved

CFC Replacements Spawn Global Forever Chemical, Study Warns

A Geophysical Research Letters study shows that substitutes for ozone-depleting CFCs—such as HCFCs and HFCs used in refrigeration and industry—degrade into trifluoroacetic acid (TFA), a persistent pollutant that accumulates worldwide through atmospheric transport, reaching remote areas like the Arctic and entering water bodies. The rising TFA levels raise risks for aquatic life and human health, prompting calls for broader monitoring and international regulation as the use of newer refrigerants continues to grow.

via Indian Defence Review|

#arctic #atmospheric-deposition #cfc-replacements