Word: nitrogenating
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Such natural processes as volcanic eruptions, forest fires and the bacterial decomposition of organic matter produce some of the damaging acidic sulfur and nitrogen compounds. But most experts believe that the current problem is directly traceable to the burning of fossil fuels by power plants, factories and smelting operations and, to a lesser extent, auto emissions. When tall smokestacks vent their fumes, sulfur dioxide, nitrogen oxides and traces of such toxic metals as mercury and cadmium mix with water vapor in the atmosphere. Chemical reactions follow that form dilute solutions of nitric and sulfuric acids-acid rain...
...releasing them into the atmosphere, causing much of Santa Barbara's air pollution. Under a deal struck with state and local governments, the oil companies will get an air-pollution credit: for every two tons of hydrocarbons they eliminate, they will be allowed one ton of sulfur-and nitrogen-oxide emissions from future drilling in the Santa Barbara Channel. The pact should clear the way for developing a nearby well that could produce as many as 4,100 bbl. of oil a day. Says ARCO's offshore operations chief, Paul Rowley: "We just couldn...
Following the daily work on tuning the engines, a smaller band of employees spends the evening preparing and conducting tests for the diesels, which must satisfy 32 rigorous operating conditions mandated by the state. The conditions are designed to prevent emission of dangerous nitrogen dioxide above specified levels. MATEP officials expect to finish the process by August, allowing a late-summer or early-fall opening of a plant that will provide the steam, chilled water and electricity needs of the Harvard Medical Schools and its nine affiliated teaching hospitals...
...legislation to emerge from Congress. Passed in 1970 at a time of heightened concern about pollution, the law empowered the Environmental Protection Agency to begin a much needed atmospheric cleanup. It required the EPA to set strict limits on seven major pollutants, including toxic agents such as sulfur dioxide, nitrogen oxides and lead. It mandated steady reductions in emissions from automotive tail pipes and factory smokestacks. It also gave the EPA power to force the states, some of whom showed little or no interest in curbing pollutants, to comply with the tough new federal standards...
Titan's atmosphere is "probably similar to the earth's first [original] atmosphere," Goody said, because it contains large amounts of methane and nitrogen. "If there is life anywhere in the solar system, Titan seems the most likely place to find it," he added...