iClicker Questions Review

Flashcards based on lecture notes for final exam review.

What is the current standard for children’s blood lead levels (BLL) set by the CDC?

3.5 ug/dL

What chemical was the main concern in the East Palestine train derailment that caused the authorities to do a controlled burn?

Vinyl Chloride

PBBs can be characterized by

Low vapor pressure and insoluble in water

What is the concentration of lead in drinking water that requires action to remediate the situation?

15 ppb

Which of the following was NOT an issue that caused the Flint, Michigan water crisis?

Excessive rainfall causing flooding

Which harmful chemical is used in preparing carbaryl?

Phosgene Gas

Aflatoxin contamination is most likely to occur in which environmental conditions?

Hot and humid climates

Which crop is most commonly infected by Claviceps purpurea?

Rye

What is the vapor density of methyl isocyanate (MIC)?

>1.00

Aldo Leopold coined this term in his book A Sand County Almanac, which applies a theoretical for how humans should regard and respect nature.

Land Ethic

Which president signed the Yellowstone National Park Protection Act, which established Yellowstone as the first national park in the United States?

Ulysses S. Grant

Which decade was considered the “Decade of Unrest”, in which multiple environmental disasters made headlines and became mainstream in the US?

1960s

Which xenobiotic compound, when accumulated in the North Platte River, has been shown to adversely affect the endocrine system of leopard frogs?

Atrazine

Which of the these chemicals was not the cause of the Cuyahoga River fires in Cleveland, Ohio?

Fertilizer

Identify the international treaty that was established to protect the ozone layer by phasing out production and consumption of ozone-depleting substances?

Montreal Protocol

Which type of UV rays can cause DNA damage in skin cells, sunburns, and lead to skin cancer?

UVB