agricultural run-off

For example, there is the matter of chemical pollution, mostly from agricultural run-off.

“It won’t make a difference if the cause is agricultural run-off,” he added.

It was found to have "fair" conditions, with the main contamination problems coming from agricultural run-off and construction.

They leach into rivers in agricultural run-off and pass up through the food chain.

Agricultural run-off is a major contributor to the eutrophication of fresh water bodies.

Outstanding issues for further discussion include groundwater, agricultural run-off, and private or small septic systems.

Canada will provide funding for a national risk assessment of microbiological contaminants in agricultural run-off.

• Water Pollution Information on pollutants such as agricultural run-off, chemicals etc.

Field experiments indicated a link between agricultural run-off and increased infection (Kiesecker 2002).

Few known host species and the occurrence of populations near areas with agricultural run-off also threaten this species.

Alas, agricultural run-off continued to kill saw grass vital to the natural ecosystem, and still kills off three or four acres a day.

Better catchment management can help reduce agricultural run-off and sediments that harm our reef environments.

Earlier this year, agricultural run-off or leaking septic systems was thought to have contaminated residential wells in Garland.

In 2007 it was cleared of silt to provide an improved habitat with agricultural run-off being diverted from the Broad at the same time.

The Upper Derwent is affected by agricultural run-off, particularly from land clearing and forestry.

Wetlands may be polluted by industrial and commercial operations, agricultural run-off, stormwater and other sources.

Some reserve land is on the Fraser River, where there is industrial pollution and agricultural run-off.

They said the drastic loss was the result of severe environmental problems, including over-exploitation, pollution from agricultural run-off and other sources, and climate change.

Excessive sugar cane production has interrupted water flows and contaminated the Everglades with polluted agricultural run-off.

The large area of wetland vegetation helps remove excess nutrients from agricultural run-off and maintains water quality for downstream communities.

It was hard to find information about the water quality but scientists are concerned about agricultural run-off and how it can affect the water.

"Unfortunately our streams have been tainted by agricultural run-off and acid mine drainage from the unregulated activity of the past.

It is under severe environmental stress because of high water demand and pollution from industrial waste, agricultural run-off, and untreated sewage.

Non-point sources such as agricultural run-off, are more obscure and difficult to identify, making computer modeling an economical and practical approach.

Siltation from agricultural run-off eventually choked the river, and channelization became a major focus of West Tennessee politicians until the 1970s.