chap 9 where they come from

Question 1

ground level ozone

Answer 1

Formed by a rxn of NO + volatile organic compounds in presence of sun

Question 2

sulfur dioxide

Answer 2

Prod by pwr plants burning coal and oil, from copper smelting, and as a paper mill byproduct

Question 3

soot

Answer 3

Emitted by coal and oil- fired pwr plants, diesel exhaust

Question 4

co

Answer 4

chronic poisoning if work in tunnels, undergrd garages, highway toll booths

or in an enclosed space like a garage, from gas generator, or mine fires

Question 5

lead

Answer 5

lead paints (flaking in old houses) and in gasoline
•	Other sources: mining, foundaries, batteries, spray paint; manufacturing of matteries, car radiators, tin cans

Question 6

mercury

Answer 6

• Metallic (elemental)
• Inorganic mercury cmpds (mostly mercuric chloride)
• Organic (methyl mercury) - fish!!!!!!
• mercury vapors from dental amalgams
• used in gold mining

Question 7

arsenic

Answer 7

• naturally in soil/water
• Groundwater in Bangladesh, Chile, China
• used in wood preservers and herbicides
• released into environ via mines and smeltering industries
• In herbal med for proyelocytic leukemia

Question 8

cadmium

Answer 8

o Modern: via mining, electroplating, prod of nickel-cadmium batteries
o Caontaminate soil and plants → food is most important source to humans

Question 9

organic solvents: chloroform and carbon tetrachloirde

Answer 9

in degreasing, drycleaning agents, apint removers

Question 10

BEnxene and 1,3-butadiene

Answer 10

rubber manuf

Question 11

Polycyclic hydrocarbons

Answer 11

Released from fossil fuel (coal and gas) combustion and are in tar and soot

Question 12

Bisphenol A (BPA)

Answer 12

Used in synth of polycarbonate food and water containers