Sharp drop in ‘forever chemicals’ in seabird eggs hailed as win for regulation
GS3Economy · S&T · Environment · Security· Biotechnology & health research· Prelims·
Why in news
Environment and Climate Change Canada researchers reported a significant drop in 'forever chemicals' (Pfas) in northern gannet eggs, attributed to increased regulatory scrutiny on 3M and EPA-led phase-out agreements.
Background
The study observed a 74% drop in Pfos levels and significant reductions in PFHxS compounds in northern gannet eggs. These levels peaked in the late 1990s and early 2000s. The decline is linked to regulatory actions against 3M and agreements with the US Environmental Protection Agency.
Facts for Prelims
- EnvironmentNorthern gannets are the avian species used to monitor Pfas levels in this study.
- FactPfos levels in northern gannet eggs dropped by 74% since the peak in the late 1990s and early 2000s.
- BodyThe US Environmental Protection Agency (EPA) entered into agreements with chemical makers to phase out certain Pfas.
For Mains
Q. Discuss the challenges in regulating persistent organic pollutants like Pfas and the implications of 'regrettable substitution' where newer chemical generations pose emerging environmental risks.
Dimensions to cover in your answer
- Regulatory lag: Difficulty in monitoring and banning newer generations of Pfas as they replace phased-out compounds
- Bioaccumulation risks: Persistence of 'forever chemicals' in marine food chains and avian reproductive health
- Corporate accountability: Balancing industrial chemical production with stringent environmental safety standards
Keywords: Persistent Organic Pollutants · Bioaccumulation · Regulatory Scrutiny · Environmental Toxicology · Regrettable Substitution
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