The toxicity of mercury is best described as?
a. How mercury enters the environment.
b. Measure of the harm mercury does to a person.
c. The persistence of mercury in the environment.
d. How much mercury a person experiences in a given time.
Answers
Answer:
a... (Mercury is introduced into the environment in three ways. First, mercury is emitted into the air naturally from volcanoes, the weathering of rocks, forest fires, and soils. Second, mercury is emitted into the air from the burning of fossil fuels and municipal or medical waste.)
b...(Mercury exposure at high levels can harm the brain, heart, kidneys, lungs, and immune system. High levels of methylmercury in the bloodstream of unborn babies and young children may harm the developing nervous system, making the child less able to think and learn.)
c.. (Mercury persists in the environment.
Mercury persists in the environment for long periods by cycling back and forth between the air and soil surface, all the while changing chemical forms. Atmospheric lifetimes of elemental mercury are estimated to be up to two years, and as methyl mercury in the soils for decades.)
d.. ( Depends upon the Time and environment)