Stressed Ecosystem

Without healthy concentrations of dissolved oxygen in Long Island Sound, we don’t have a healthy ecosystem. “Healthy concentrations” means about 3.5 milligrams per liter, at minimum. As of late Tuesday morning, much of Long Island Sound was far worse:

Norwalk Harbor – 0.9 milligrams per liter (or 13 percent of saturation), in 1 foot of water.

Western Sound (between Greenwich and Oyster Bay) – 1.8 milligrams per liter (22 percent of saturation), in 52 feet of water.

Execution Rocks – 0.5 milligrams per liter (6 percent of saturation), in 54 feet of water.

MYSound has the details and the maps.