1.   As soon as they left, Louderback and the church congregation smelled the chemical odor.

2.   The FBI and the U.S. Postal Service continue to warn us to be wary of mail that has a chemical odor.

3.   They smelled a strong, noxious chemical odor emanating from below, they said in a written account to Bluewater Network.

4.   They tend to have a chemical odor and very little flavor.

5.   Police, firefighters and chemical weapons experts -- some in gas masks -- checked the station for the source of the foul chemical odor.

6.   A heavy chemical odor hung in the air as soldiers surrounded the site.

7.   But as she left the train, she became aware of a harsh, penetrating chemical odor.

8.   Many others also complained of feeling ill after smelling a foul chemical odor at the station.

9.   There was a strong chemical odor after the explosion, she said.