SSI test


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Regional Monitoring Program 1997 Annual Report
Chapter 3.
Figure 3.41a.
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Figure 3.41a.
Average total arsenic (As) concentrations (parts per billion, ppb) in water in each Estuary reach from 1989ยจ1997. The vertical bars represent range of values. The sample size varies between sites and between seasons.
 
San Francisco Estuary Institute