IBESS 6.3 Photochemical Smog

___ are used on factory stacks to remove gases and particulates.

• Filters

• Emission reducers

• Scrubbers

• Filter Strips

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-4

An air pollution prevention mechanism found in vehicles is a ___.

• combustion chamber

• electrostatic precipitator

• scrubber

• catalytic converter

Tags

NGSS.HS-ETS1-3

A primary pollutant is one that ___.

• is put directly into the air by human activities

• reacts with other primary pollutants

Which of the following are examples of VOCs ?

• paint and paint thinners

• gasoline

• water vapor

• smog

Tags

NGSS.MS-PS1-3

Smog or ground ozone forms in the troposphere. Which pollutants are most responsible for photochemical smog or ground ozone?

• sulfur and particulate matter

• volatile organic compounds (VOCs) and nitrogen oxides

• carbon monoxide and carbon dioxide

• none of these answers are correct

Tags

NGSS.MS-PS1-3

Which product of incomplete combustion gives photochemical smog its yellowish color?

• PANs

• ozone (O₃)

• VOCs

• nitrous oxides (NO_x)

Tags

NGSS.HS-PS1-2

What are 4 characteristics of urban areas with high levels of photochemical smog?

• Calm winds, dry weather, sunny, many industries and vehicles

• High winds, wet weather, cloudy, many industries and vehicles

• Located in a basin or surrounded by mountains

• Located in a basin or surrounded by mountains, calm winds, dry weather, sunny, many industries and vehicles

• All of the above

Tags

NGSS.MS-ESS3-4

The principal component of photochemical smog

Source: Chemical reaction of VOCs and NO_x

Health effects: breathing problems, reduced lung capacity, asthma, eye irritation, reduced resistance to disease

Environmental effects: can damage plants

• Pb

• CO

• SO₂

• O₃

Tags

NGSS.MS-PS1-2

A smog forming chemical

Source: burning of fossil fuels, cars are a major source

Health effects: lung damage, respiratory system illnesses

Environmental effects: an ingredient of acid precipitation

• NO_x

• CO

• Pb

• VOCs

A smog forming group of molecules
Source: are released from burning fuel (fossil fuels or biomass), solvents, paints glues and other commonly used products.  They include benzene, methane, formaldehyde and others
Health effects: In addition to smog (ozone) effects, some are carcinogenic
Environmental effects: affects some plants directly in addition to smog effects

• PM (particulate matter)
• VOCs
• CO
• Pb

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4