Summary
Research from City University of Hong Kong has found that imported fish like salmon and cod may contain high levels of PFAS, which are potentially harmful chemicals. These "forever chemicals" could pose health risks, especially for certain vulnerable groups like the elderly and children. The study highlights how fish in cleaner areas can still get contaminated through international trade.
Key Facts
- Researchers found PFAS, which are harmful chemicals, in popular fish types such as salmon, cod, swordfish, and tuna.
- These chemicals can cause health problems and are very hard to break down.
- The study looked at 3,000 sites over 20 years and tested 212 fish species for PFAS levels.
- Fish in areas with higher pollution had more PFAS, especially in predatory fish up the food chain.
- Asian fish had higher median PFAS levels than fish from other regions.
- Fish imported from places like Europe can increase PFAS exposure in countries with cleaner waters.
- Vulnerable groups like children, elderly, and pregnant women face higher health risks from PFAS.
- High-PFAS fish include tuna, cod, salmon, herring, and bottom-dwelling species like the burrowing goby.
