Isle de Plastique
While paddling with the tide up the Merrimack River yesterday I landed on a small island to stretch my legs. In doing so I noticed a fair bit of empty plastic containers, literally, at my feet and within a 25' radius of my landing spot... In looking closer my eyes began to detect even smaller pieces of plastic... ...not much bigger than the adjacent yellow bottle cap. The plastic wafer-like disks are actually high-tech "BiofilmChip M" plastic carriers... ...manufactured for use in wastewater treatment where, according to their manufacturer, "They are designed to provide a large protected surface area for the biofilm and optimal conditions for biological activity when suspended in water." One cubic foot of these wafers provides 1200 square feet of surface area for biogrowth attachment. Prior to March 6, 2011 the wafers were doing just that at a wastewater treatment facility located some 40 miles upriver on the Merrimack in Hooksett, NH... until