Human activity and industrial discharges do have a great impact on the environment, but forces of nature are far more powerful.

Industrial discharge costs are already very high, and are set to increase further.

Some 80% of the water treated is industrial discharge.

Prevention and control of industrial discharge has always been emphasized within our country's environment protection plans.

As a result of this Act, industrial discharges were transferred to the sewage system.

Industrial discharges also need to be controlled and properly treated.

Industrial discharge is another major source of environment pollution.

Detailed information on the situation of industrial discharges in Greece is under assessment.

Sewage treatment plants have been required to regulate industrial discharges since 1978.

Urban development, industrial discharge, road building and agriculture all contribute to habitat loss.

There is one industrial discharge upstream of the lake.

Legislation and guidelines regulate industrial discharges to the marine environment in order to protect water quality.

The river suffers significant problems from industrial discharge.

Lakes are especially vulnerable to agricultural or industrial discharge impacts due to their long water retention time.

Contaminants can also become airborne through industrial discharge and aerial spraying of pesticides.

In some regions the Water Companies are considering refusing to accept certain industrial discharges.

It is considered to be a combination of vehicle exhaust, smoke from cooking fires, and industrial discharges.

With no urban infrastructure, sewage polluted the river, as did the industrial discharges from the mines.

Now, the return of many kinds of fish is an optimistic indicator, though industrial discharge beyond city limits remains a problem.

The number of industrial discharges has been reduced as a result of massive plant closures.

In recent years, the more momentous initiatives, such as the 3Rs regulations or the industrial discharge standards, have received a greater public airing.

Chromium may enter water systems via industrial discharge.

Most marine debris is due to land-based resources, such as litter, industrial discharges, and global management.

In some areas, it has been contaminated by fuel spills, industrial discharge, landfills, and saltwater.

Sewage effluent, other industrial discharges, and trash also contributed to the pollution of the river.