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340×103 ppm
55×103 ppm
34×103 ppm
22×103 ppm
10000 ppm
5×103 ppm
4×103 ppm
1.8×103 ppm
1.1×103 ppm
90 ppm to 2×103 ppm
1×103 ppm
0.2 ppm to 1.7×103 ppm
10 ppm to 400 ppm
30 ppm to 350 ppm
14 ppm to 340 ppm
7 ppm to 160 ppm
50 ppm
0.1 ppm to 75 ppm
0.7 ppm to 70 ppm
0.2 ppm to 40 ppm
2 ppm to 36 ppm
7 ppm to 31 ppm
16 ppm
<8 ppm
3.1 ppm to 6.7 ppm
0.8 ppm to 8 ppm
0.18 ppm to 7 ppm
2.8 ppm
2.6 ppm
1.2 ppm to 2.5 ppm
1.4 ppm
0.7 ppm
0.3 ppm to 1 ppm
0.43 ppm
0.4 ppm
0.3 ppm
<0.1 ppm
0.05 ppm
<0.03 ppm
Bowen, H. J. M. Environmental Chemistry of the Elements. London: Academic Press, Inc., 1979.
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