Page 299 - Soil and water contamination, 2nd edition

286 Soil and Water Contamination

a.

elevated values are probably attributable to atmospheric pollution due to ore mining and
smelting in Roman times. In his study, Middelkoop (1997) did a regression analysis on each
subset, using the following regression equation:
Y a b L c OM (16.3)

-1
where Y = concentration of the constituent in question (mg kg ), L = clay content (%), OM =
organic matter content (%), a, b, c = regression coefficients (-), and ε = error with mean of 0.

10/1/2013 6:45:24 PM
Soil and Water.indd 298
Soil and Water.indd 298 10/1/2013 6:45:24 PM