Infection is spread through sexual intercourse, blood transfusion or sharing of hypodermic needles.
Causes severe illness and even death if inhaled. Used in plating and in making alloys. Everything around us, plants, air, land, life etc. Eutrophication - The addition of nutrients to waters caused by rain water washing off excess fertiliser from agricultural land and human waste from settlements. Lead - A heavy metal used for thousands of years for pipes, roofs, gutters etc.