Table 1. Averaged 1-m dose by dosimeter, observed brightness measured with the ETCC in the sky and ground, and their ratios, corrected for the difference in the solid angles of sky/ground ~1/5.7, in the locations (A), (B), and (C).

	(A) Decontaminated pavement and not-decontaminated bush	(B) Not-decontaminated ground	(C) Decontaminated parking lot
averaged dose [μSv/h]	2.2	5.2	1.8
gammas from sky [counts]	776	1591	432
gammas from ground [counts]	4611	10163	2546
solid-angle-corrected sky/ground ratio of gamma	0.96	0.96	0.89