The phrase 'severe contamination' is correct and usable in written English.
You can use it to describe a situation in which something has been heavily polluted or contaminated by something else. For example, "The spill caused severe contamination of the local water supply."
Many environmentalists expect severe contamination problems, given that the site has been a rail yard for 150 years.
Dow took over Union Carbide in 2001, inheriting a legacy that has seen at least another 15,000 deaths and a second health epidemic, resulting from severe contamination at the now abandoned site, that affects another 25,000.
This leads to a severe contamination of the produced metals with carbon, which readily dissolves in the molten rare-earth metals.
Severe contamination in an area not expected by design, with a nonlethal health effect such as a burn on a worker from radiation.
Indiscriminate use of chemicals has led to severe contamination of environmental segments by heavy metals.
Severe contamination of water supply and exhaustion of supply due to damage and/or increased demand.
Many cases of severe environmental contamination arise from historical episodes, where recalcitrant contaminants have resided in the environment for a prolonged time, leading to potentially decreased bioavailability.
Gold mines often use cyanide to separate gold from ore, and widespread concern over already severe water contamination in El Salvador has helped fuel a powerful movement determined to keep the country's minerals in the ground.
The recall of peanut products is the latest in a series of increasingly severe food contamination scares involving tomatoes, spinach, cantaloupes and other foods that have enraged legislators on Capitol Hill.
She points to the case of San Sebastián, in the eastern part of the country, where an old gold mine has allegedly left behind vast environmental damage including severe water contamination.
We cannot afford to paddle in waters with severe sewage contamination, and we wonder when this law will go into effect and how boaters will be notified when the water is badly contaminated by CSO outflows?
