View detailed trend report
No evidence of trend
COLUMBIA RIVER AT NICHOLSON (BC08NA0048)
Interactive Plot for Total Selenium (ug/L)
Trend:
Long-term Chronic: 2 ug/L (upper limit, with alert at 1 ug/L)
Scroll over data points to view values. See top right bar for more options.
* ‘Value too low to detect’ refers to a concentration value that is below what the laboratory can measure (the detection limit).
The value of the open circle is not the true concentration of a parameter in the water but half of the lowest concentration that the laboratory can measure.
Web Browser Support
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