High Diversity in Iron Cycling Microbial Communities in Acidic, Iron-Rich Water of the Pyhäsalmi Mine, Finland

Table 2

The physicochemical parameters and the concentration of the most important elements and sulphate measured from the original mine water samples.

Measurement	Method	unit	P240m	P500m	P600m
pH	Electrode		1.4	2.2	2.3
ORP	Electrode	mV	494	520	600
T	Electrode	°C	14	17	19
Fe	ICP-OES	mg/L	713	1550	426
SO4	IC	mg/L	58,000	31,000	5000
S	ICP-OES	mg/L	17,600	8910	1400
Al	ICP-MS	mg/L	2604	844	96
Zn	ICP-MS	mg/L	1993	1551	91
Mg	ICP-OES	mg/L	4620	2470	344
Cu	ICP-MS	mg/L	129	34	19
Mn	ICP-MS	mg/L	136	75	14