Exam 19: Air Pollution

Light winds and poor vertical mixing can produce a condition known as ____________________.

In the northeastern United States, emissions of ____ are primarily responsible for acid precipitation.

A country breeze would probably be associated with a(n)____.

The most plentiful primary pollutant is ____.

What gas is produced naturally in the stratosphere and is also a primary component of photochemical smog in polluted air at the surface?

On clear, cold winter nights, cities tend to ____ than rural areas and have ____ temperatures.

Volcanic eruptions are an important natural source of ____.

When smog is composed of sulfurous smoke and foggy air, it is usually called Los Angeles-type smog.

Ozone, PAN, and small amounts of other oxidating pollutants are the ingredients of photochemical smog and grouped under a single heading called ____.

Certain pollutants that enter the atmosphere directly, such as from smokestacks and tail pipes, are called ____.

Which of the following is not an ingredient for a major buildup of atmospheric pollution?

Explain the role wind plays in air pollution.

Photochemical smog is also termed ____.

In cities, where less vegetation and exposed soil exists, the majority of the Sun's energy is absorbed by urban structures and asphalt, creating an urban heat island.

In cities, where less vegetation and exposed soil exists, the majority of the Sun's energy is absorbed by ____.

To indicate the air quality in a particular region, the EPA developed the ____________________, which includes the pollutants carbon monoxide, sulfur dioxide, nitrogen dioxide, particulate matter, and ozone.

The smoke in London smog came primarily from ____.

Many suspended particles are ____________________, meaning that water vapor readily condenses onto them.

Which condition would act to prevent a buildup of pollutants near the surface?

Smoke emitted into a stable atmosphere tends to spread horizontally, rather than mix vertically.