Unit 8 Flashcards by Isaac Kim

Q

Antarctica

A

Constant temperature inversion

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Q

Air pollution

A

Excessive harmful substances in atmosphere

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Q

Parts per million (ppm)

A

Common air pollutant measurement

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Q

Primary Pollutants

A

Emitted directly

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Q

Secondary Pollutants

A

Formed from reactions of primary pollutants

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Q

Point source air pollution

A

Clear, identifiable origin

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Q

Non-point source air pollution

A

Diffuse, widespread origin

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Q

Criteria air pollutants

A

Eight major pollutants causing smog, acid rain

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Q

Industrial smog

A

Sulfur-based, gray smog

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Q

Carbon monoxide

A

Colorless, odorless toxic gas

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Q

Lead

A

Used in batteries, bullets, and shielding

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Q

Nitrogen Oxide

A

Nitric oxide + nitrogen dioxide

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Q

Nitrous oxide

A

Greenhouse gas, increasing since 1750

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Q

Ozone

A

Inorganic molecule O3, secondary pollutant

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Q

Tropospheric ozone

A

Local-level secondary pollutant

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Q

Peroxyacyl Nitrates (PANs)

A

Secondary pollutants

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Q

Sulfuric Dioxide

A

Colorless choking gas, forms acid

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Q

Suspended particulate matter (PMx)

Study These Flashcards

A

Microscopic particles in air

Q

Volatile Organic Compounds (VOCs)

Study These Flashcards

A

Evaporate easily, organic

Q

Photochemical smog

Study These Flashcards

A

Nitrogen-based, UV-catalyzed, brown smog

Q

Thermal inversions

Study These Flashcards

A

Temperature increases with height

Q

Sick building syndrome

Study These Flashcards

A

Indoor air quality-related ailments

Q

Asbestos

Study These Flashcards

A

Fireproof, insulating, durable fiber

Q

Carbon monoxide poisoning

Study These Flashcards

A

Blocks oxygen in blood

Formaldehyde

Indoor carcinogen, lung cancer link

Radon

Radioactive gas from radium decay

Cigarette smoke

Contains 60+ carcinogens

Catalytic converter

Converts exhaust to less toxic gases

Catalyst

Speeds up chemical reactions in converters

Acid deposition

Acidic wet or dry atmospheric deposits

Dry deposition

Acid particles stick to surfaces

Wet deposition

Acid rain, snow, fog

Acid rain

Acidifies lakes and streams

Acid shock

Sudden snowmelt spike in lake acidity

Urban heat islands

Cities warmer than surroundings

Street Canyon

Street flanked by buildings

Noise pollution

Human-made disruptive sound

Sensory hearing loss

Inner ear damage from noise

Sulfur dioxide

Released by coal burning, causes acid rain

6 A.M.–9 A.M.

NOx and VOCs increase from traffic

9 A.M.–11 A.M.

NOx and VOCs react to form NO2

11 A.M.–4 P.M.

NO2 breaks down, O3 increases

4 P.M.–Sunset

Sun sets, O3 production stops

Three-way

Catalytic converter for NOx, CO, hydrocarbons