Have the phase-outs of PFASs affected concentrations in the environment?

The manufacturing and use of some potentially harmful per- polyfluoroalkyl substances (PFASs) have been restricted or phased-out in some countries, but as these substances often are extremely persistent and may be transported over long distances it is not obvious what effect the regulatory actions have had on the concentrations in humans and in the environment. In a systematic review that is summarised here, Mistra EviEM has assessed the evidence for temporal trends in a global context.

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Humpback whale. Photo: Devra. Stockpholio

SR5 Phase-out of PFAS chemicals

Production of certain PFASs is being phased out. EviEM has studied how this affects PFAS concentrations in the environment.

Photo: Tore Hagman/N.

SR9 Roadside management

EviEM has mapped the evidence on how species diversity and species dispersal along roadsides are affected by various kinds of management.

Foto: iStock

SR11 Time series data

Farming practices can affect the amount of carbon stored in soil. EviEM is reviewing time series data about farmland management methods affect soil organic carbon.

A forest fire in progress. Copyright: Dmytro Gilitukha, from iStockphoto

SR15 Prescribed burning

EviEM synthesises evidence on how prescribed forest burning affect species that do not directly depend on fire or the dead wood that fires provide.