Table 8.

Statistics of Th data according to the soil class.

Soil class	Number of harmonized data	Mean concentration (mg/kg)	Number of airborne data	Mean concentration (mg/kg)
LV - Luvisol	59	9.60	9196	10.55
CM - Cambisol	37	9.63	8075	10.44
FL - Fluvisol	17	7.51	3193	6.86
AB - Albeluvisol	9	6.44	3516	6.83
HS - Histosol	1	11.54	92	5.34
AR - Arenosol	–	–	154	4.50
PZ - Podzol	21	3.02	5481	3.55
RG - Regosol	–	–	116	2.92
Built area	–	–	271	8.82