air pollution   (大気汚染)

Motorcycles account for 30% of air pollution in Tehran.

It is calculated from several sets of air pollution data.

The air pollution in Cairo is a matter of serious concern.

water pollution   (水質汚染)

These stable components do not cause water pollution problems.

Other threats include water pollution, especially from mine runoff.

Aluminium sulfate by referencing the Camelford water pollution incident)

noise pollution   (騒音公害)

This was met with protests from the neighbors, who were affected by noise pollution all day long.

Aircraft engines emit noise pollution, gases and particulate emissions, and contribute to global dimming.

The engine drives a two-bladed main rotor with a profile maximising efficiency while lowering noise pollution.

light pollution   (光害)

Narrowband filters may also be used to minimize light pollution.

Human health is also adversely affected by the effects of light pollution.

This light is the source of light pollution that burdens astronomers and others.

pollution control   (公害防止)

However, pollution control has remained somewhat elusive.

The disposal of this extract was to be planned together with the state pollution control agency.

Water quality, erosion, and pollution control have become important issues in China's relations with other countries.

environmental pollution

In China, heavy metals also cause environmental pollution.

One of the most burdensome legacies of the Soviet era is widespread environmental pollution.

Problems for all ecosystems include: environmental pollution, climate change and biodiversity loss.

industrial pollution

He also anticipated modern concerns with fuel shortages and industrial pollution.

Berry’s Creek has been subject to extensive industrial pollution during the 19th and 20th centuries.

Organic arsenic compounds may, however, occur where waters are significantly impacted by industrial pollution.

pollution levels

Besides adding silt, studies indicate that these immersions have increased the pollution levels in the lake.

The U.S. provided the reservation with a grant in 1999 that enabled the tribe to observe the pollution levels of the environment.

This increases the noise pollution levels for the inhabitants of Mettmenstetten and the surrounding villages, leading them to take action .