Metro Vancouver Reference Panel recommends monitoring long-term cumulative impacts of multiple contaminants in liquid discharges
“Current senior government regulations deal with one contaminant at a time and even though levels may be below some set threshold, the presence of multiple contaminants and their interaction can have impacts on organisms in the long term that are not being considered. The Cautions, Warnings, Triggers process now used by Metro Vancouver focuses mainly on individual contaminants,” stated Ken Hall.