Data collected by the Maryland Department of Natural Resources and Old Dominion University show a higher than average volume of hypoxia—waters with less than 2 mg/l oxygen—in the Chesapeake Bay mainstem of Maryland and Virginia in early June, that improved to less than average size in late June though late July. Summary results from Maryland and Virginia combined mainstem Bay monitoring cruises are as follows. 2024 Cruise Hypoxic Volume Average Volume (1985-2023) *2024 Rank Graphic May 0.42 0.18 35th / 40 Chart or Map Early June 1.03 0.90 24th / 36 Chart or Map Late June 0.76 1.27 9th / 34 Chart or Map Early July 1.20 1.59 11th / 39 Chart or Map Late July* 0.82 1.62 5th / 39 Chart or Map * The ‘2024 Rank’ column indicates this year’s result rankings, from the least (better) to the most hypoxic volume, compared against historical results for each time period (number of years that monitoring was completed). Results are likely higher than reported for July 2024 because stations CB5.3, LE2.3, and CB5.2 in Maryland were not sampled due to mechanical issues with the research vessel, and Virginia stations CB7.1N and CB7.3 were not sampled due to adverse weather conditions. These monitoring results also provide a comparison to the yearly seasonal […]
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