Forest fires are not a major source of air pollution in agriculture, as they are typically caused by natural factors such as lightning strikes or human activities such as arson.

Livestock waste emits a variety of pollutants, but ammonia is the primary pollutant of concern due to its contribution to the formation of particulate matter and its potential to cause respiratory problems.

Air pollution can have a variety of negative impacts on agriculture, but it does not typically improve soil fertility.

Pesticides emit a variety of pollutants, but VOCs are the primary pollutant of concern due to their contribution to the formation of ozone and smog.

Fertilizers emit a variety of pollutants, but phosphorus is not typically considered an air pollutant.

Agricultural burning emits a variety of pollutants, but particulate matter is the primary pollutant of concern due to its potential to cause respiratory problems and its contribution to the formation of smog.

Air pollution can have a variety of negative impacts on livestock, but it does not typically improve milk production.

Agricultural machinery emits a variety of pollutants, but diesel particulate matter is the primary pollutant of concern due to its potential to cause cancer and other health problems.

Agricultural irrigation can emit a variety of pollutants, but ozone is not typically considered an air pollutant emitted by irrigation.

Agricultural waste burning emits a variety of pollutants, but particulate matter is the primary pollutant of concern due to its potential to cause respiratory problems and its contribution to the formation of smog.

Air pollution can have a variety of negative impacts on crop yields, but it does not typically improve water use efficiency.

Agricultural dust emits a variety of pollutants, but particulate matter is the primary pollutant of concern due to its potential to cause respiratory problems and its contribution to the formation of smog.

Agricultural land clearing can emit a variety of pollutants, but methane is not typically considered an air pollutant emitted by land clearing.

Agricultural chemicals emit a variety of pollutants, but VOCs are the primary pollutant of concern due to their contribution to the formation of ozone and smog.