And while companies continually work to remove all toxic ingredients, it's not possible just yet.

"Look at the entire infrastructure and identify the companies working to remove the constraints on performance," he said.

Last night, officials said company representatives were at the scene and working with the authorities to remove the chemicals.

Between 2006 and 2009, local residents worked with the museum to remove some of the debris from the trail.

They must work together with the immune system to remove the microorganisms from the body.

During her term, she worked to remove gender and race as criteria for determining pay.

That done, he worked to remove the lenses and other connections from within the tube itself.

Almost immediately the leaders of the community began to work to remove Brown.

Military and civil defense units have been working around the clock to remove victims.

"We have to work to remove the military presence," he said.