However the technology was not ready, and the company suspended equipment purchases in early 1999, citing "contamination issues".

- originally scheduled to be Endeavour, changed to Discovery due to contamination issues.

"Fortunately, there are no contamination issues that we know about, although a portion of the land is landfill," Mr. Monahan said.

This provides a solution to the backward and forward contamination issues.

It also does this without the contamination issues mentioned above.

It is generally agreed that a full and open public debate of the back contamination issues is needed before any sample return.

Carcasses have been soaked in formaldehyde to kill spores, though this has environmental contamination issues.

Due to contamination issues from a local factory, the school district is now in a new K-12 school building.

The agency has known about contamination issues with fresh produce for 10 years, she said in a telephone interview.

"We need to address the contamination issue," Dr. Patten says in one of the group meetings.