NEW ORLEANS — Sampling by environmental groups has found oysters contaminated with oil along the Louisiana coast befouled by the BP PLC oil spill, a finding that casts doubt on statements by state and federal officials that all seafood tested here is safe to eat.
Batches of oysters were sampled on Aug. 2 and 3 near the mouths of the Atchafalaya and Mississippi rivers and laboratory tests revealed the animals were tainted by oil, according to Wilma Subra, a well-known Louisiana chemist working for environmental groups. The oysters were obtained from a reef and an old crab trap, she said.


































