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Early July 2020 Hypoxia Report

Maryland Department of Natural Resources monitoring data show that dissolved oxygen conditions in the Maryland portion of the Chesapeake Bay mainstem were average in early July 2020. The hypoxic water volume — waters with less than 2 mg/l oxygen — was 1.35 cubic miles compared to a historical early July average (1985-2019) of 1.38 cubic  Read the Rest…


June 2020 Hypoxia Report

Maryland Department of Natural Resources monitoring data show that dissolved oxygen conditions in the Maryland portion of the Chesapeake Bay mainstem continued to be better than average in June 2020. The hypoxic water volume — waters with less than 2 mg/l oxygen — was 0.56 and 0.90 cubic miles, respectively, during early and late June  Read the Rest…


Late June 2019 Hypoxia Report

Maryland Department of Natural Resources monitoring shows that dissolved oxygen conditions in the state’s portion of the Chesapeake Bay mainstem were better than expected in late June. The hypoxic water volume — areas with less than 2 mg/l oxygen — was 0.69 cubic miles, which is well below the late June 1985-2018 average of 1.15  Read the Rest…


Early June 2019 Hypoxia Report

Dissolved oxygen conditions in the Maryland portion of the Chesapeake Bay mainstem were slightly above the long-term average in early June. The hypoxic water volume — areas with less than 2 mg/l oxygen — was 1.14 cubic miles, which is slightly above the early June 1985-2018 average of 0.93 cubic miles and similar to levels  Read the Rest…



Summer 2018 Hypoxia Report

Average Year for Chesapeake Bay Dissolved Oxygen Dissolved oxygen conditions for the Maryland portion of Chesapeake Bay for the summer of 2018 were average compared to the long-term average from 1985-2017, reports the Maryland Department of Natural Resources. Low dissolved oxygen volume averaged 0.97 cubic miles from June through September. Crabs, fish, oysters and other  Read the Rest…



Secretary’s Message: October 2018

Positive Grades for Maryland’s Coastal Bays The Maryland Coastal Bays Program recently unveiled the 2017 Coastal Bays Report Card, a snapshot assessment on the health and resiliency of the coastal bays surrounding Ocean City and Assateague Island. The bays’ collective health received a “B-,” its highest grade ever reported! Nutrient reductions have shown a positive  Read the Rest…


August 2018 Hypoxia Report

Dissolved oxygen conditions for Maryland’s portion of Chesapeake Bay returned to near average for the month of August, reports the Maryland Department of Natural Resources. The department tracks hypoxia throughout the summer during twice monthly monitoring cruises. Low dissolved oxygen volume was at a record low (0.26 cubic miles) in late July, due to sustained  Read the Rest…


Late July 2018 Hypoxia Report

Heavy Rainfall and Sustained Winds Helped Produce Best Recorded Results Ever Due to extreme summer weather, dissolved oxygen conditions in Maryland’s portion of the Chesapeake Bay mainstem were the best ever observed in late July, reports the Maryland Department to Natural Resources. The department tracks hypoxia throughout the summer during twice monthly monitoring cruises. The  Read the Rest…


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