Sunday, April 15, 2007

Some Articles of Interest on Jamaica Bay...

Plant Planned to Remove Howard Beach Odors - By Stephen Geffon

Say goodbye to those noxious odors coming from Shellbank Basin
that waft through the Howard Beach community during the summer months. The city's Department of Environmental Protection (DEP) has staked out a site at the edge of the basin where it intends to build a permanent facility to eliminate the odors and oxygenate the basin's waters.

The odors occur when a sudden drop in temperature allows the basin's deep water to rise to the surface. Without natural mixing, the water separates into layers, with the sun-heated warmest water at the top and the coolest at the bottom.

Stratification is the term scientists use to describe this separation, and for the past seven years DEP has been testing a technique to reverse this process, aptly called destratification. Destratification has been used effectively in other lakes and reservoirs to vertically mix water bodies and prevent undesirable water quality conditions from occurring.



Shellbank Basin is a long narrow water body and as such does not get a sufficient tidal flow coming in from Jamaica Bay. When the tide goes in and out, the top water is recycled but the bottom water just sits. (Read more...)