airquality {base} | R Documentation

## New York Air Quality Measurements

### Description

Daily air quality measurements in New York, May to September 1973.

### Usage

    data(airquality)

### Format

A data frame with 154 observations on 6 variables.

`[,1]` | `Ozone` | numeric | Ozone (ppb)
`[,2]` | `Solar.R` | numeric | Solar R (lang)
`[,3]` | `Wind` | numeric | Wind (mph)
`[,4]` | `Temp` | numeric | Temperature (degrees F)
`[,5]` | `Month` | numeric | Month (1–12)
`[,6]` | `Day` | numeric | Day of month (1–31)

### Details

Daily readings of the following air quality values for May 1, 1973 (a Tuesday) to September 30, 1973.

- `Ozone`: Mean ozone in parts per billion from 1300 to 1500 hours at Roosevelt Island
- `Solar.R`: Solar radiation in Langleys in the frequency band 4000–7700 Angstroms from 0800 to 1200 hours at Central Park
- `Wind`: Average wind speed in miles per hour at 0700 and 1000 hours at LaGuardia Airport
- `Temp`: Maximum daily temperature in degrees Fahrenheit at La Guardia Airport.

### Source

The data were obtained from the New York State Department of Conservation (ozone data) and the National Weather Service (meteorological data).

### References

Chambers, J. M., Cleveland, W. S., Kleiner, B. and Tukey, P. A. (1983) Graphical Methods for Data Analysis. Belmont, CA: Wadsworth.

### Examples

    data(airquality)
    pairs(airquality, panel = panel.smooth, main = "airquality data")