When citing outside sources, you are required to include: the author(s)' last name(s); the date of publication; and, for direct quotations, the page number on which the quoted passage appears. If there is no page number, use the paragraph number to indicate the location of the quotation.
Cinnabar (mercury sulphide - HgS) is the single most toxic mineral to handle on earth. It is the worldâs main source of mercury and has been mined since Neolithic times. However, when oxidized, this element will produce methyl mercury and dimethyl mercury, two toxic compounds that cause irreparable harm to the nervous systems of children. It is deadly in small concentrations and can be absorbed through the respiratory tract, intestines, or skin.
Carbamate is a pesticide derived from carbamic acid and primarily affects nerve impulse transmission. Extremely toxic to dogs, carbamate exposure must be treated by a veterinarian as soon as possible because ingestion or inhalation can be fatal. Dermal exposure can also be very toxic. Carbamates are known as acetylcholinesterase inhibitors and are used in agriculture as fungicides, herbicides, and insecticides.