The extent and nature of the heavy metal pollution is considered a state secret.

Heavy metal pollution was a particular worry, he said, not only on the health front but also for stability in society.

He is also recognized in the field of the nuclear waste management and heavy metal pollution.

Heavy metal pollution is a principle source of environmental contamination.

Consequently, there have been many studies in Japan into the effects of heavy metal pollution on health.

The mining activities in the area further contributes to the heavy metal pollution.

"We must do our utmost to reduce the threat from heavy metal pollution," he said.

The plant has the ability to absorb a certain amount of heavy metal pollution, such as lead, from contaminated water.

The Chinese environmental groups began by looking at the sources of heavy metal pollution in China.

Heavy metal pollution appears to be indicated particularly in the tail feathers.

Only the heavy metal pollution could be reduced strongly.

Previous studies have indicated substantial heavy metal pollution in the city's water bodies including streams.

The species has been identified as vulnerable to heavy metal pollution and bioaccumulation.

Generations of people were exposed to heavy metals pollution, though no definite studies are known to exist.

The study will also test cheaper local methods of reducing and possibly clearing up the heavy metal pollution.

C. brunneus are used as a bioindicators for heavy metal pollution.

Anti-fouling treatments used on boats have generated heavy metal pollution.

The heavy metal pollution was "a grave threat to public health and even affecting future generations," said Li.

This enables the shrews to be used as bioindicators of heavy metal pollution.

Effect of heavy metal pollution on plants.

According to the environment ministry, 12 heavy metal pollutions incident were reported last year, prompting 32 public disturbances.

Kelp's most dramatic application is its ability to neutralise heavy metal pollution and radiation in the body.

Heavy metal pollution from the occupation years.

Heavy metal pollution of water in monitored by Cladophora, Stigeoclonium.

He said: "Worms are a good indicator of pollution as they tend to die off quickly, particularly heavy metal pollution."