Current Conditions Yearly Table View
| Select a Year, Sampling Location, and Parameter: | ||
|---|---|---|
2022 Chesapeake Bay Mainstem - Bottom Dissolved Oxygen (mg/L)
Click on hyperlinked stations to view charts of water quality trends.
| Bottom Dissolved Oxygen (mg/l) | |
 |
0.0 - 0.2 (anoxia - kills most life) |
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0.2 - 2.0 (hypoxia - harms bottom organisms) |
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2.0 - 3.0 (stresses smaller fish and crabs) |
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3.0 - 5.0 (stresses larger fish) |
 |
5.0 - 10.0 (healthy) |
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10.0 + (could indicate an algal bloom in summer) |
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No Data |
| Dissolved oxygen (DO) in the water sustains life for Bay organisms. Nutrients, such as nitrogen and phosphorus, from agricultural, sewer/septic and urban sources can fuel algal blooms that can starve the water of DO. DO levels above 5 mg/l are normally sufficient to support most life. More info on: "Our Monitoring Explained" |
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