Leaching of Chromium, Copper, and Arsenic from CCA-Treated Utility Poles

Table 6

Extreme Cu, Cr, and As concentrations in soils near 1-, 2-, and 13-year-old poles.

Approximate pole age (years)	TL	Pole	Cu (mmol/kg)	Cr (mmol/kg)	As (mmol/kg)
1	227	P1-8	37.5	15.5	15.7
2	225	P19L (N)	17.3	6.12	2.48
13	259	P121	22.4	5.19	3.19
		P87	21.3	11.8	8.25
		P101	28.9	65.5	38.9