Impact of open manganese mines on the health of children dwelling in the surrounding area

Figures & data

Table 1. Mn, Zn, and Cu distribution in soil samples taken near manganese ore agglomeration plant, (M±SEM), mg/kg

Distance from the ore agglomeration plant, m	Mn	Zn	Cu
100	535±12	8.9±0.8	7.6±0.1
500	900±19	9.2±0.5	7.6±0.2
1,500	535±15	8.5±0.6	7.9±0.2

Table 2. Mn, Zn, and Cu spreading in upper layer (0–10 cm) of arable lands neighboring manganese ore slime depository, (M±SEM), mg/kg

Substrate	Location of sampling	Mn	Zn	Cu
Slime of processed manganese ore	Waste depository	700±23	11.0±2.2	11.3±0.3
Black soil
	200 m from depository	467±10	22.2±1.2	14.3±0.2
	2 km from depository	427±5	19.5±1.0	14.3±0.4

Table 3. An estimation of total mutagen background of the environment in Marhanets on mNUC test in cells of oral cavity mucosa of preschool-aged children

Areas	n	mNUC-index/cell
Mn laden	56	0.070±0.008
Control	23	0.012±0.009**

**p < 0.001.