Cancer incidence in the population exposed to dioxin after the

Table 1 TCDD soil measurements, serum TCDD and TEQ levels in residents in the Seveso area.

Zone	Mean soil TCDD (μg/m²)^a	Serum TCDD (ppt)		Serum TEQ^b (ppt)	Serum TEQ^b without TCDD (ppt)
	Min - Max	No. Subjects	Median	Median (Min - Max)	Median (Min - Max)
A	15.5 - 580.4	296	447.0^c	-	-
		7	73.3^d	94.0 (60.6 - 141.7)	39.0 (16.7 - 51.8)
B	1.7 - 4.3	80	94.0^c	-	-
		51	12.4^d	43.2 (17.7 - 194.3)	31.8 (11.4 - 131.7)
R	0.9 - 1.4	48	48.0^c	NA	NA
Reference	NA	52	5.5^d	38.8 (10.2 - 92.1)	32.3 (8.2 - 82.4)
				p < 0.0001^e	p = 0.92^e

NA, not available
^aReference [13]
^bCalculated using TEF WHO-2005 [16]; includes seven dioxins, 10 furans, four coplanar PCBs.
Levels below detection limit (DL) were set to DL/√2
^cBlood samples collected in 1976 (reference [14])
^dBlood samples collected in 1993-94 (reference [15])
^eKruskal-Wallis test

ISSN: 1476-069X