The Arctic Environmental Problems - New Ecoinformatics Tools in Environmental Science: Applications and Decision-making - page 549

Table 6.16 Results (ppm) of the laboratory analysis of the 1996 expedition materials
Data type Data of the Irkutsk ecological service on the
Angara water quality control

Results of water samples
analysis

Year 1978 1979 1980 1996

Season T1 T2 T1 T2 T1 T2 August

The Ershov water collector (up the Irkutsk dam) Map ID#-I15 Map ID#-I11

Mg 3.2 3.0 3.3 3.1 3.4 3.3 3.5 4.9

Fe na na 0.01 nm na na <0.05 <0.05

As na na na na na na 0.0063 0.012

Zn na na na na na na 0.15 0.12

Cu 0.002 0.002 0.003 0.002 0.001 0.003 <0.02 <0.02

Mn 0.001 0.001 0.003 0.005 0.003 0.006 <0.01 <0.01

Al 0.005 0.005 0.018 0.008 0.004 0.007 <0.1 <0.1

Co nm na nm na na na <0.02 <0.02

Ni na na nm 0.003 0.001 0.002 <0.02 <0.02

V na na na na na na <0.02 <0.02

Pb na na na na na na <0.0057 <0.057

The water collector near the Sukhov station up Angarsk Map ID#-A14
Mg 3.4 3.4 3.7 3.5 3.3 3.4 3.2
Fe 0.02 0.3 0.07 0.001 na na <0.05
As na na na na na na 0.012
Zn na na 0.0053 na na na 0.24
Cu 0.001 0.002 0.004 0.007 0.004 0.008 <0.02
Mn 0.011 nm 0.018 0.007 0.012 0.011 0.028
Al na 0.015 0.02 0.028 0.013 0.012 <0.01
Co nm na 0.004 0.002 na na <0.02
Ni nm 0.001 0.003 0.002 0.002 0.0005 <0.02
V na na na na 0.001 na <0.02
Pb na na na na na na <0.0057
The water collector 0.5 km down the Bratsk dam Map ID#-B2
Mn 4.4 3.8 4.4 3.9 4.8 5.2 4.9
Fe na na 0.02 0.13 na na <0.05
As na na na na na na 0.016
Zn na na na na na na 0.087
Cu na na na na na na <0.02
Mn na na 0.004 0.001 0.002 0.001 <0.01
Al nm 0.002 na 0.002 0.003 nm <0.1
Co na na na na na na <0.02
Ni na na na na na na <0.02
V nm na na 0.001 0.001 0.15 <0.02
Pb na na na na na na <0.0057
nm no measurements; na beyond measurement accuracy (sensitivity of devices); T1 = [t 1 ,t 2 ];
T2 = [t 2 ,t 4 ]