Deep - water oxygen levels are down but not deadly , report concludes . The study tracked ocean oxygen levels from May to September . Latest federal report does n't mention the study 's ` ` broad ecoystem consequences '' BP 's report on the disaster is scheduled for release Wednesday .
Deep-water oxygen levels are down but not deadly , report concludes . The study tracked dissolved oxygen levels from May to August . Latest federal report does n't address the spill 's `` broad ecoystem consequences '' BP 's report on the disaster is scheduled for release Wednesday .