The chemicals probably do not pose a major health hazard now, scientists said.

She said the chemicals posed no immediate danger to the 700 workers at the yard.

Under current regulation, we may not understand the risks many chemicals pose until it's too late.

The company now says that the chemicals did not pose any threat and that it no longer uses them.

There is some question about whether the chemicals in the odor pose a health risk.

Officials of 3M say they have no evidence that the chemicals pose a long-term threat to human health.

In this context, we cannot allow the risk to public health that untested chemicals might pose.

But the chemical, if released into the atmosphere in large amounts, could pose a serious health hazard, particularly to workers at the site.

Many chemicals in salon products pose potential health risks, the majority of which are not well regulated.

These random chemicals pose no threat to the system however due to the simplicity of the process.