Biofunctional Characteristics of Lignite Fly Ash Modified by Humates: A New Soil Conditioner

Table 4

Trace elements concentrations in Megalopolis fly ash.

Substance	Concentration (ppm)
TiO2	0.823^a
P2O5	0.233^a
SrO	0.107^a
BaO	680
MnO	620
Cr2O3	410
NiO	390
V2O5	340
ZnO	160
CuO	130
ZrO2	110
Rb2O	88
MoO3	73
PbO	58
Cl	43
Br	39
Y2O3	7

^a% w/w.