Bullia digitalis Bullia digitalis Bullia digitalis, the finger plough shell or plough snail, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks. These dominant scavengers scent decaying animal matter from a considerable distance so that they converge from all directions to feed. Length: 60 mm Narrow, smooth shell with a long, pointed spire, usually light yellow or creamy, often tinged with violet or yellow. The large, oval foot is offwhite. The operculum has serrated margins. The ovate shell is elongated, subturreted, smooth and polished. It is of a reddish yellow
Drug pollution Drug pollution Drug pollution or pharmaceutical pollution is pollution of the environment with pharmaceutical drugs and their metabolites, which reach the aquatic environment (groundwater, rivers, lakes, and oceans) through wastewater. Drug pollution is therefore mainly a form of water pollution. "Pharmaceutical pollution is now detected in waters throughout the world," said a scientist at the Cary Institute of Ecosystem Studies in Millbrook, New York. "Causes include aging infrastructure, sewage overflows and agricultural runoff. Even when wastewater makes it to sewage treatment facilities, they aren't equipped to remove pharmaceuticals." Most such pollution comes simply from the drugs having been cleared and