Ozone is a secondary air pollutant formed by the reaction of nitrogen oxides and volatile organic compounds in the presence of sunlight.

The burning of fossil fuels, such as coal and oil, releases sulfur dioxide and nitrogen oxides into the atmosphere, which can react with water vapor to form sulfuric acid and nitric acid. These acids can then fall to the ground in rain or snow, causing acid rain.

Allergies are not a direct health effect of air pollution, although they can be triggered by air pollutants such as pollen and dust.

Deposition, dilution, and dispersion are all processes by which air pollutants are removed from the atmosphere. Deposition is the process by which pollutants are removed from the air and deposited on the ground or water. Dilution is the process by which pollutants are mixed with clean air, reducing their concentration. Dispersion is the process by which pollutants are spread out over a wider area, reducing their concentration.

Nitrogen is not a greenhouse gas, as it does not absorb infrared radiation from the sun.

Inversion is the term for the phenomenon in which air pollution is trapped in a layer of warm air near the ground. This can occur when a layer of warm air moves over a layer of cooler air, preventing the cooler air from rising and dispersing the pollutants.

Natural ventilation is not a source of indoor air pollution, as it helps to bring fresh air into a building and remove pollutants.

Phytotoxicity is the term for the process by which air pollution damages plants. Air pollutants can damage plants by interfering with their photosynthesis, respiration, and growth.

Solar panels are not air pollution control devices, as they do not remove pollutants from the air.

Eutrophication is the term for the process by which air pollution damages aquatic ecosystems. Air pollutants can cause eutrophication by increasing the amount of nutrients in water bodies, which can lead to algal blooms and other problems.

Noise pollution is not a type of air pollution, as it does not involve the release of pollutants into the air.

Corrosion, erosion, and weathering are all processes by which air pollution can damage materials. Corrosion is the process by which metals react with oxygen and other chemicals in the air to form oxides and other compounds. Erosion is the process by which wind and water wear away materials. Weathering is the process by which materials are broken down by exposure to the elements.

Cancer is not a health effect of ozone pollution, although it is a health effect of other air pollutants such as benzene and formaldehyde.

Ozone depletion is the term for the process by which air pollution damages the ozone layer. The ozone layer is a layer of the atmosphere that protects the Earth from harmful ultraviolet radiation from the sun. Air pollutants such as chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) can destroy ozone molecules, leading to ozone depletion.

Renewable portfolio standards are not a type of air pollution regulation, as they do not directly regulate the emission of air pollutants.