• Datafile Name: Air PollutionDownload .TXT file
  • Datafile Subject: Environment,
  • Story names:
  • Reference: Sokal, R.R. and Rohlf, F.J. (1981) Biometry, 2nd edition, San Francisco: W.H. Freeman, 239. Also found in: Hand, D.J., et al. (1994) A Handbook of Small Data Sets, London: Chapman & Hall, 20-21.
  • Authorization: Contact Author
  • Description: These data give air pollution and related values for 41 U.S. cities and were collected from U.S. government publications. The data are means over the years 1969-1971.
  • Number of Cases 41
  • Variable Names:
    1. City: City
    2. SO2: Sulfur dioxide content of air in micrograms per cubic meter
    3. Temp: Average annual temperature in degrees Fahrenheit
    4. Man: Number of manufacturing enterprises employing 20 or more workers
    5. Pop: Population size in thousands from the 1970 census
    6. Wind: Average annual wind speed in miles per hour
    7. Rain: Average annual precipitation in inches
    8. RainDays: Average number of days with precipitation per year

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