Which of the following are considered criteria pollutants by the Environmental Protection Agency (EPA), and what are their primary sources? Select all that apply.
A. Carbon Monoxide (CO); Primary Source: Motor vehicle exhaust
B. Ozone ($O_3$); Primary Source: Chemical reactions between volatile organic compounds (VOCs) and nitrogen oxides ($NO_x$) in the presence of sunlight
C. Methane ($CH_4$); Primary Source: Agriculture and waste management
D. Particulate Matter (PM10 and PM2.5); Primary Source: Combustion processes, construction sites, and industrial activities
E. Lead (Pb); Primary Source: Industrial processes and leaded gasoline
F. Sulfur Dioxide ($SO_2$); Primary Source: Burning of fossil fuels, especially coal and oil
G. Chlorofluorocarbons (CFCs); Primary Source: Refrigerants and aerosol propellants
B, C, D, E and G
A, B, C, D, and F
A, B, D, E and F
A, B, D, E and G
