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Air Pollution from Stationary Sources

Air Pollution from Stationary Sources. China Wakes Up to Its Environmental Catastrophe – Bloomberg Businessweek.

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Air Pollution from Stationary Sources

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  1. Air Pollution from Stationary Sources

  2. China Wakes Up to Its Environmental Catastrophe – Bloomberg Businessweek • At its worst, the “airpocalypse” that settled over Beijing and northern China in late February had a fine particulate matter reading 16 times the recommended upper limit, turning Beijing into a veritable smoking lounge.

  3. Clean Air Act and Amendments • 1963 and amendments in 1970, 1977, and 1990 • Purpose: • Control common pollutants • Hazardous pollutants • Area wide and global pollutants

  4. Common (criteria) Pollutants • Sulphur dioxide (SO2) • Nitrogen oxides (NOx) • Ozone (O3) • Particulate matter (PM) • Lead (Pb) • Carbon monoxide (CO)

  5. Criteria pollutant sources and impacts

  6. National Ambient Air Quality Standards (NAAQS) • EPA set standards • States develop plans to achieve standards • Tougher rules for new sources of pollution • Non-attainment areas • Chattanooga • Knoxville • Memphis • Kingsport-Bristol

  7. National Ambient Air Quality Standards (NAAQS)

  8. Air quality now by area • www.airnow.gov

  9. Ozone

  10. Improving trends for air emissions Emissions have also greatly improved. Source: http://www.epa.gov/airtrends/sixpoll.html

  11. Improving trends for air quality Air quality (pollution concentrations) has improved greatly, particularly since 1990. Source: http://www.epa.gov/airtrends/sixpoll.html

  12. Estimates of criteria pollutant emissions

  13. Economy v pollution tradeoff? • Emissions have declined greatly even though the economy continues to grow. • We have become much more efficient at growing the economy without adding to air pollution.

  14. Growth v Pollution?

  15. Persisting air quality problems • High levels of ozone and fine particulates still persist. • 142 million people in the U.S. live in areas with high levels of ozone, particulates, SO2, or lead.

  16. Number of People Living in Counties with Air Quality Concentrations Above the Level of the NAAQS in 2012

  17. Economics of Air Pollution • Are the air standards efficient? • Are the air standards cost-effective? • Are the air standards worth doing?

  18. Innovative Approaches • Offset program (1970s) • Smog Trading (California) • Acid rain program (tradable permits) • Climate change (later in the term)

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