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Scientific Investigations Report 2007–5144

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5144

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Table 10. Microtox acute toxicity profile of chemicals sequestered with SPMDs (semipermeable membrane devices), Lakes Mead and Mohave, Nevada, 2004.

[Abbreviations: >, greater than]

Site No.
(fig. 1)
Site name EC50 Toxicity
Index (TI)
Lake Mohave
1 Katherine Landing 14.9 59.6
2 North Telephone Cove 13.5 54
Lake Mead
8 Hemenway Harbor 30 120
13 Las Vegas Bay 30 120
14 Callville Bay 11.55 46.2
Controls
Phenol 25 100
Dialysate Control >50 >130

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