Lead to that of primary lead; some refining processes may be skipped depending on the material recycled and its potential contamination. Of the sources of lead for recycling, lead–acid batteries are the most important; lead pipe, sheet, and cable sheathing are also significant. Contrary to popular belief, pencil leads in wooden pencils have never been made from lead. When the pencil originated as a wrapped graphite writing tool, the particular type of graphite used was named "plumbago" (literally, "act for lead" or "lead mockup"). Lead metal has several useful mechanical properties, including high density, low melting point, ductility, and relative inertness.
Lead poisoning in raptors has consumed a lead jig or sinker if a fishing line breaks. They may also try to attack a fish being pulled in by someone fishing/angling. There is also tackle that becomes disposed of or left behind in the water or on the fishing grounds, which birds may then accidentally consume. What makes this issue even worse is that lead is not an element that is quickly eliminated and cannot be degraded, as it is a very stable element. This results in a continuous accumulation of the concentration of lead in the environment over time, as there is more going