Chemicals and their harmful effects
Use : It is also used as a preservative in
vaccinations. In medicine, formaldehyde solutions are applied
topically to dry the skin, such as in the treatment of warts.
Health Risks: The acute effects are toxic in nature and may cause irritation to mucous membranes, difficulty breathing, lowered body temperature, lethargy, coma, and
16. Hydrogen cyanide : Pure hydrogen cyanide is a colorless, very poisonous, and highly volatile liquid.
Use: Hydrogen cyanide is used in tempering steel, dyeing, explosives, engraving, the production of acrylic resin plastic, and other organic chemical products.
Health Risks : Inhalation is extremely dangerous and can include slow breathing rate, and irritation.
17. Lead : Lead is a very soft, highly malleable, bluish-white metal that has poor electrical conductivity.
Use: Lead is used in building construction and in the manufacture of lead-acid batteries, bullets and shot, and is part of solder, pewter, and fusible alloys.
Health Risks : Lead can damage nervous connections and cause blood and brain disorders. Long term exposure to lead or its salts can lead to nephropathy.