Air Pollution Control

  1. Air Pollutants: Types, Sources, and Characteristics
    1. Classification Systems for Air Pollutants
      1. Primary vs. Secondary Pollutants
        1. Criteria vs. Hazardous Air Pollutants
          1. Gaseous vs. Particulate Pollutants
            1. Reactive vs. Inert Pollutants
            2. Criteria Air Pollutants
              1. Particulate Matter
                1. PM10 Characteristics and Sources
                  1. PM2.5 Characteristics and Sources
                    1. Ultrafine Particles
                      1. Coarse Particles
                        1. Chemical Composition of PM
                        2. Sulfur Dioxide
                          1. Formation Mechanisms
                            1. Major Source Categories
                              1. Atmospheric Behavior
                              2. Nitrogen Oxides
                                1. Nitric Oxide Formation
                                  1. Nitrogen Dioxide Formation
                                    1. Atmospheric Chemistry of NOx
                                    2. Carbon Monoxide
                                      1. Formation Processes
                                        1. Source Categories
                                          1. Atmospheric Fate
                                          2. Ground-Level Ozone
                                            1. Photochemical Formation
                                              1. Precursor Pollutants
                                                1. Seasonal and Diurnal Patterns
                                                2. Lead
                                                  1. Historical Sources
                                                    1. Current Sources
                                                      1. Environmental Persistence
                                                    2. Hazardous Air Pollutants
                                                      1. Volatile Organic Compounds
                                                        1. Benzene
                                                          1. Toluene
                                                            1. Xylenes
                                                              1. Formaldehyde
                                                                1. Methylene Chloride
                                                                2. Toxic Metals
                                                                  1. Mercury
                                                                    1. Arsenic
                                                                      1. Cadmium
                                                                        1. Chromium
                                                                          1. Nickel
                                                                          2. Persistent Organic Pollutants
                                                                            1. Dioxins
                                                                              1. Furans
                                                                                1. Polychlorinated Biphenyls
                                                                                2. Carcinogenic Compounds
                                                                                  1. Polycyclic Aromatic Hydrocarbons
                                                                                    1. Asbestos
                                                                                      1. Vinyl Chloride
                                                                                    2. Greenhouse Gases and Climate Pollutants
                                                                                      1. Carbon Dioxide
                                                                                        1. Methane
                                                                                          1. Nitrous Oxide
                                                                                            1. Fluorinated Gases
                                                                                              1. Black Carbon
                                                                                              2. Source Categories and Emission Patterns
                                                                                                1. Stationary Sources
                                                                                                  1. Point Sources
                                                                                                    1. Power Generation Facilities
                                                                                                      1. Industrial Manufacturing
                                                                                                        1. Petroleum Refineries
                                                                                                          1. Chemical Plants
                                                                                                          2. Area Sources
                                                                                                            1. Residential Combustion
                                                                                                              1. Commercial Activities
                                                                                                                1. Agricultural Operations
                                                                                                                  1. Fugitive Dust Sources
                                                                                                                2. Mobile Sources
                                                                                                                  1. On-Road Transportation
                                                                                                                    1. Light-Duty Vehicles
                                                                                                                      1. Heavy-Duty Trucks
                                                                                                                        1. Motorcycles
                                                                                                                          1. Buses
                                                                                                                          2. Non-Road Mobile Sources
                                                                                                                            1. Aircraft
                                                                                                                              1. Marine Vessels
                                                                                                                                1. Locomotives
                                                                                                                                  1. Construction Equipment
                                                                                                                                    1. Agricultural Equipment
                                                                                                                                  2. Natural Sources
                                                                                                                                    1. Biogenic Emissions
                                                                                                                                      1. Wildfires
                                                                                                                                        1. Volcanic Emissions
                                                                                                                                          1. Wind-Blown Dust
                                                                                                                                            1. Sea Salt