are substances in air that could, at high enough concentrations, harm human beings, animals, vegetation or material.

This air pollutant consists of particles (tiny pieces) of solids or liquids in the air. These particles may include dust, dirt, and soot.

This refers to particulate matter that is 10 micrometers or less in diameter.

This includes dust from construction sites, landfills, agriculture, wildfires, brush and waste burning, industrial sources, wind-blown dust from open lands, pollen, and fragments of bacteria.

This refers to particulate matter that is 2.5 micrometers or less in diameter. These particles are considered fine particles and are among the smallest and most dangerous types of air pollution.

a gas that is produced both naturally and as a result of human activity. In the upper atmosphere, it protects the planet from harmful UV radiation. However, on earth, which forms when pollutants from cars and industry react with sunlight and heat, is a pollutant that can cause respiratory problems and harm the environment.

How is ground-level ozone formed?

What is/are the effects of ground-level ozone?

a gas that is a major cause of acid rain and is created when fossil fuels are burned. It can harm the environment and lead to respiratory issues, especially for those who have asthma.

A group of gases produced by the burning of fossil fuels that can contribute to the formation of ozone and particulate matter. It can also cause respiratory problems and harm the environment.

a colorless, odorless gas produced by the burning of fossil fuels. It can reduce the amount of oxygen delivered to the body's organs and tissues, causing headaches, dizziness, and nausea, and can be particularly dangerous for people with heart disease.

a poisonous metal that can damage the nervous system, especially in young children. It can be released into the atmosphere from a number of sources, such as industrial emissions and vehicle emissions.

It is a toxic metal that can enter the atmosphere as a result of human activities like the burning of fossil fuels and the use of goods like paint and gasoline.

These/This have high vapor pressure and low water solubility. These/This is/are a group of chemicals that are commonly found in many household and industrial products. They can be released into the atmosphere through the evaporation of these products and industrial processes.

Which of the following is not a common air pollutant?

Why is carbon dioxide (CO₂) not typically considered a pollutant?