ch 19 environmental health toxins

Question 1

lead

Answer 1

source: old paint
media: old homes
exposure: paint chips/dust in soil
route: ingestion
pop of concern: children
effect: CNS tox

Question 2

mercury

Answer 2

source: old thermometers, batteries
media: water
exposure: fish
route: ingestion pop
pop of concern: pregnant, children
effect: CNS toxicity

Question 3

radon

Answer 3

source: ground soil
media: airborne
exposure: homes
route: inhalation
pop of concern: All
effect: lung cancer

Question 4

PCBS

Answer 4

source: paint, plastic, rubber products before 1979 ban
media: air, water, soil (decomposed very slowly)
exposure: everywhere (?)
route: ingestion/inhalation
pop of concern: pregnant, children
effect: CNS tox, endocrine toxicity

Question 5

Benzene

Answer 5

source: rubber, detergents, pesticides
media: air
exposure: everywhere (?)
route: inhalation
pop of concern: pregnant, children, and all(?)
effect: marrow toxicity (leukemia?)

Question 6

asbestos

Answer 6

source: building materials
media: air
exposure: older buildings
route: inhalation
pop of concern: workers
effect: lung fibrosis/mesothelioma

Question 7

pesticides

Answer 7

source: food
media: garden-to-table
exposure: food/water
route: ingestion
pop of concern: All
effect: multiple lymphoma

Question 8

arsenic

Answer 8

source: old pressure treated lumber, old industrial sites
media: water, soil
exposure: water, air
route: ingestion/inhalation pop
pop of concern: all
effect: death