so2.us.cities {asbio}R Documentation

SO2 data for 32 US cities with respect to 6 explanatory variables

Description

Of concern for public health officials and biologists are models of air pollution as a function of environmental characteristics. Using a meta-analysis of government publications Sokal and Rolf (1995) compiled an interesting dataset which investigates air pollution (measured as annual mean SO_2 concentration per m^3) as a function of six environmental variables for 32 cities in the United States. Whenever the data were available they are based on averages of three years 1969, 1970, and 1971.

Usage

data(so2.us.cities)

Format

The dataset contains 8 variables:

City

US city.

Y

Average annual SO_2 concentration per m^3.

X1

Average annual temperature (degrees Celsius).

X2

Number of industrial companies with more than 20 employees.

X3

Population size (1970 census) in thousands.

X4

Average Annual average wind speed.

X5

Average Annual precipitation (cm).

X6

Average number of days with precipitation.

Source

Sokal, R. R., and F. J. Rohlf (2012) Biometry, 4th ed. Freeman.


[Package asbio version 1.7 Index]