Surprise at this development only reveals ignorance of basic principles of ecology -- the on-going cycling of compounds and elements.  With human impact beginning to reach a point of saturation, and only slated to increase continuously, the amount of compounds introduced to the system is cause for concern.  Recycling is not only an issue for manufactured products, but needs to be extended to pharmaceuticals and other chemical compounds as well.   As with hard goods, the key is initial design for deconstruction or break down back to initial elements for chemicals.  http://www.metrowestdailynews.com/homepage/x1574803042