Carbon monoxide is not a common air pollutant emitted by agricultural activities, as it is primarily produced by the combustion of fossil fuels.

Livestock manure is the primary source of ammonia emissions in agriculture, as it contains high levels of nitrogen compounds that can volatilize into the atmosphere.

Conservation tillage, which involves leaving crop residues on the field after harvest, is the most effective agricultural practice in reducing particulate matter emissions, as it helps to hold soil in place and prevent wind erosion.

The primary air quality standard for sulfur dioxide emissions from agricultural activities is 200 ppb, as established by the U.S. Environmental Protection Agency.

Allergies are not a potential health effect of air pollution from agricultural activities, as they are typically caused by exposure to specific allergens, such as pollen or dust mites.

The primary goal of air quality standards for agricultural activities is to protect human health, as air pollution from agriculture can cause a variety of health problems, including respiratory problems, cardiovascular disease, and cancer.

Nitrogen oxides are not a common air pollutant emitted by agricultural burning, as they are primarily produced by the combustion of fossil fuels.

Crop residues are the primary source of particulate matter emissions from agricultural burning, as they are often burned after harvest to clear fields for the next planting season.

Prescribed burning, which involves carefully controlled burning of agricultural fields, is the most effective agricultural practice in reducing air pollution from agricultural burning, as it helps to reduce the amount of smoke and ash produced.

The primary air quality standard for particulate matter emissions from agricultural burning is 35 µg/m³, as established by the U.S. Environmental Protection Agency.

Eye irritation is not a potential health effect of air pollution from agricultural burning, as it is typically caused by exposure to specific irritants, such as smoke or dust.

The primary goal of air quality standards for agricultural burning is to protect human health, as air pollution from agricultural burning can cause a variety of health problems, including respiratory problems, cardiovascular disease, and cancer.

Carbon dioxide is not a common air pollutant emitted by agricultural fertilizers, as it is primarily produced by the combustion of fossil fuels.

Synthetic fertilizers are the primary source of ammonia emissions from agricultural fertilizers, as they contain high levels of nitrogen compounds that can volatilize into the atmosphere.

Nitrification inhibitors, which are chemicals that slow the conversion of ammonia to nitrate in the soil, are the most effective agricultural practice in reducing nitrous oxide emissions from fertilizers.