WASHINGTON - The health of the Chesapeake Bay declined in 2010, a new scientific analysis finds.
The nation's largest estuary received a C-minus on this year's report released by the University of Maryland Center for Environmental Science. The 4 percent decline is the first in four years.
Two major storms -- one on Jan. 27, 2010 and the other on March 15, 2010 -- contributed to the ranking, which was down from 2009's grade of C.
"While efforts to reduce pollution have been stepped up in recent years, nature overwhelmed those measures in 2010 and temporarily set the bay back a bit," said UMCES-EcoCheck scientist Heath Kelsey, in a news release.