toxic substances

White blood cells also help to fight other toxic substances.

He said there were no indications that toxic substances had been found.

"It's one of the most toxic substances known to man.

The latter two are on the government's "red list" of particularly toxic substances.

About as much concern was also shown for workers exposed to toxic substances.

This could cause exposure to lead paint or other toxic substances.

Contrary to the law in force, toxic substances have been introduced into the environment.

These can lead to toxic substances in the blood that damage nerves.

Unfortunately, there are many toxic substances in the natural world, including plants and flowers.

The treatment plants are not equipped to remove toxic substances.

With the ban on these highly toxic substances, they will become illegal in Europe.

They fear the effects all the more because this is the breeding season and toxic substances will especially harm the young.

Toxic substances are sent to the cell surface, where they kill the bacteria, she said.

All too often, people remain oblivious, for example, to the impact of exposure to certain toxic substances.

Some of those who opposed the latest plan worried about toxic substances being used on the property.

However the first batch of experiments does not contain any toxic substances.

As with other toxic substances in the environment, the stricter the standards, the more it costs to meet them.

The pact appeared to be one of the largest ever made by a private company in a case involving toxic substances.

Urgent efforts should therefore be made to find substitutes for these two toxic substances.

They suggest that certain toxic substances in tobacco smoke may be to blame.

Almost nothing is known about the toxic substances used, but they are probably contained within the integument.

The addition of more water quality measuring stations to determine where toxic substances are coming from.

Your design processes - for example, could you replace toxic substances with less harmful ones?

Last year, states issued 3,094 advisories for toxic substances, compared with 1,233 in 1993.

Under current law, some 24,000 industrial installations are required to report their emissions of 651 toxic substances.