source of nitrogen oxide造句

They could also provide further justification for the administration's efforts to tighten pollution controls on power plants and other sources of nitrogen oxides.
Cars and trucks are another major source of nitrogen oxides but the strategy to control cars is now set uniformly for most of the country.
The Four Corners plant is the Southwest's biggest single source of nitrogen oxides : 47, 300 tons in 2000, compared with San Juan's 31, 000 tons.
Tosco's refinery near Martinez is the largest source of nitrogen oxide, sulfur dioxide and other particulates in the state, and, the study said, is within a mile of an elementary and high school.
Power plants and motor vehicles are the leading sources of nitrogen oxides and sulfur dioxide, air pollutants that cause summertime smog, which makes breathing difficult, as well as acid rain, which can kill aquatic life.
It's difficult to find source of nitrogen oxide in a sentence. 用source of nitrogen oxide造句挺难的

Vehicles, another major source of nitrogen oxides, have also contributed to rising ozone levels, as people drive more each year and more of them drive sport utility vehicles and trucks that are not subject to the same emissions standards as cars.