The P.E.I. Right to a Healthy Environment campaign is called Blue Dot PEI, and is an endeavor of the Citizens' Alliance of P.E.I.
More information here:
Two municipalities have made declarations on The Right to a Healthy Environment:
Charlottetown, June 15th, 2015
Stratford, July 8th, 2015
Nationally, Blue Dot /Right to a Healthy Environment information is available at David Suzuki Foundation / Blue Dot Movement