The campaigners says several key lock systems on the Bridgwater and Taunton Canal could fail.
A new Portsmouth Uni study found PFAS present at "multiple levels" of the marine environment.
"Dried apricots 12 months ago were £35 for a 12kg box, now they're £100 a box," says cheesemonger.
Kent Wildlife Trust says chalk streams should be designated "irreplaceable" under planning rules.
It comes as the UK looks to restrict the products to vet visits.
The government insists it is taking action to maker the seas safer.
Cumbria's Walney Island could face a sea level rise of 60cm by the end of the century, experts say.
The Withington farmer is relieved his 6,000 birds can be let out to roam again.
The restrictions at Hambrook were introduced in 2019 to reduce nitrous dioxide levels in the area.
