The Chesapeake Bay Foundation was gracious in giving the polluted waters of the Chesapeake Bay a D-plus. It should have been an F-minus ("Bay grade remains D+ despite improvements," Jan. 5). A major culprit involved with the bay's increased pollution is the shipping industry.
They bring thousands and thousands of gallons of their possibly polluted waters from abroad in the form of ships' ballast that is dumped in the Chesapeake Bay before their departure in order for them to lighten their loads.
When the various ships are inspected, water samples should be taken to help identify the culprits who add to this present dilemma the bay is experiencing.
Bernard Helinski, Baltimore