The phrase "a large pollution" is not correct in standard English usage.
It is typically used incorrectly because "pollution" is an uncountable noun and should not be preceded by "a" or "an."
Example: "The city is facing a large amount of pollution due to industrial waste."
Alternatives: "a significant level of pollution" or "a high degree of pollution."
EPA officials accused critics of seeking to obscure a larger pollution problem affecting waterways through the West.
Evaporative emissions from storage tanks and automobile refueling, a large air pollution problem with gasoline, virtually do not exist with diesel, which is heavier and less volatile.
Since there is no other large pollution source nearby, the estrogenic material was most likely from vehicle emissions, house heating sources and oil fumes of house cooking.
In developing countries, due to rapid industrialization, excessive application of metals and synthetic chemicals in the terrestrial environment coupled with deficient environmental management have led to a large-scale pollution in the environment.
The agency, the report said, also needs to know more about "high-emitting vehicles" -- cars and trucks with smoking tailpipes -- that are believed to be the source of a large portion of pollution.
This result indicates that a large quantity of pollution abatement investment decreases capital productivity in manufacturing sectors.
One of the reasons for this effect may be that legal considerations involving environmental regulations caused many factories to purchase a large quantity of pollution treatment equipment.
To a large extent this pollution is caused by the high farming density and the feeding of trash fish.
However, this technology also has several disadvantages such as landfills requiring a large surface area and pollution problems, including ground water pollution, air pollution, and soil contamination.
The Virginia Electric Power Company agreed to what government officials call the largest pollution reductions ever by a utility, settling lawsuits filed by New York State and the federal government accusing it of Clean Air Act violations.
