Acid Rain in the UK

Keywords: spatial distribution, regression

Description

The columns in the data set represent the precipitation weighted mean concentrations of ions for the year 1986, for 47 sites in the United Kingdom.

	Variable		Description
	Site		Site number
	Rain		Rain (measured in mm)
	H		H+
	SO4		SO4-2
	NO3		NO3-
	NH4		NH4+
	x		x-coordinate (measured in cm)
	y		y-coordinate (cm)

The measurement of NH4+ for site number 35 was not available and is represented by NA in the data set. The x- and y-cordinates were measured in cm from a map of the UK.

Download

Data File (tab-delimited text)

Source

Campbell, G.W., Irwin, J.G., Webster, R. (1991). Spatial Analysis and Mapping the Annual Mean Concentrations of Acidity and Major Ions in Precipitation over the United Kingdon in 1986. Environmental Monitoring and Assessment, 16, 1-17.

The data were obtained from UCLA Statistics Case Studies. An apparent error in data entry for Site 23 has been corrected.