"Do you think there could have been some kind of chemical pollution here?"

Do we need to point out once again that chemical pollution levels are still too high?

The effects of the oil and chemical pollution on these species remains unknown.

Her tribe is dying off because of the chemical pollution.

A large chemical pollution issue has been the mercury contamination of the lake.

The northern Adriatic has become more or less a dead sea because of chemical pollution.

Environmental impact assessment of energy development and chemical pollution.

Later, due to heavy industrial chemical pollution, the river course had been totally cut off and got filled up.

Soil erosion and chemical pollution also have effects on Colombia.

The springs have very little chemical pollution, and low turbidity.

The species is sensitive to low levels of dissolved oxygen, and to chemical pollution.

Agreement also appears close on new controls on chemical pollution.

Tom instantly realized that chemical pollution in the water was poisoning the air supply.

High levels of chemical pollution have adversely affected the river and its habitats.

Chemical pollution in the Energy Department's weapon system may be more serious than radiation.

The culprits might include chemical pollution, disease and increasing ultraviolet light.

The study did not include examination of some locations already known to have high levels of chemical pollution.

Although the researchers said that chemical pollution might have contributed to the mutations, they thought the more likely cause to be radiation.

LaNell began after learning she had a rare immune system disease associated with chemical pollution.

However, my government and I are determined to accept that loss, rather than to run any risk of chemical pollution of our environment.

Environmental threats to rivers include loss of water, dams, chemical pollution and introduced species.

But in the 1980's, scientists began to consider applying microbes to reducing toxic chemical pollution.

The best-known is California's, which is intended to reduce chemical pollution of air, food and water.

Among them were damp, dust, chemical pollution, the state of the building itself and, not least, the human presence in overlarge numbers.

The increases surprise even people who are predisposed to think the worst about the ill effects of chemical pollution.