The European Commission has unveiled a new set of water pollution rules, which will for the first time include certain pharmaceutical products. The Commission is proposing to add 15 chemicals to the list of 33 pollutants that are currently monitored and controlled in EU surface waters. The popular pain-relieving drug Diclofenac is one of three pharmaceuticals to be put on the European water watch-list, which law-makers say is another step towards improving the quality of rivers, lakes and coastal waters.