Sentences with phrase «less nitrogen dioxide»

The models suggested that levels of air pollution would fall without the government having to do much as older diesel vehicles are replaced by newer ones that emit less nitrogen dioxide.

Not exact matches

Brixton Road, Lambeth has claimed the «dubious honour» of being the first air quality monitoring site to see levels of pollutant nitrogen dioxide exceed the annual hourly limits less than a week into the new year.

Specifically, a 4 ug / m3 increase in exposure to small particulate matter of less than 2.5 in diameter (PM2.5) was associated with a 2 % increased risk of stillbirth, while exposure to nitrogen dioxide, carbon monoxide, PM10 and ozone were also linked to a heightened risk.

They now think it consisted largely of carbon dioxide and nitrogen, a far less reactive mixture than Dr. Miller used.

Now, if you have all this very cold, nearly freezing water surrounding these ice caps, sucking up carbon dioxide out of the polar atmosphere, at nearly the highest possible rate, 30 times faster than oxygen, and 70 times faster than nitrogen, doesn't it stand to reason that the air that remains might just have a lot less carbon dioxide in it than the atmosphere across the rest of the planet?

In automobiles, researchers have struggled to develop a system that seamlessly and easily converts pollutants like nitrogen oxides and carbon monoxide to less harmful nitrogen and carbon dioxide — without using a lot of energy.

Usually contains platinum, palladium and / or rhodium, which acts as a catalyst in a chemical reaction that converts unburned hydrocarbons, carbon monoxide and oxides of nitrogen into water vapor, carbon dioxide and other gases that are less toxic than untreated exhaust fumes

This proven technology has helped shift more electricity generation to natural gas, which emits less nitrogen oxides, sulfur dioxide, mercury and more than 50 percent less carbon dioxide than coal.

But it's also the by - product of fossil fuel combustion, and when a refinery or power plant reduces its greenhouse gas emissions (by becoming more energy - efficient, for example), it also releases fewer smog - forming chemicals like nitrogen oxides, less of the sulfur dioxide and soot that can irritate lungs and cause respiratory disease, and fewer toxic emissions linked to cancer and neurological disorders.

Carbon dioxide production by humans is less than 11 % of the world's production of CO2, which in turn is less than half of the less than 0.1 % of atmospheric gases that are not oxygen or nitrogen.

Carbon Dioxide can not store heat; it has a heat capacity even less than oxygen and nitrogen and releases any heat it absorbs practically instantly.

Supercritical stations burn less coal per megawatt - hour produced and so benefit the environment and the electricity consumer.A modern, highly efficient, supercritical coal - fired station with stack gas cleanup is very clean indeed, essentially emitting only water vapor, carbon dioxide and nitrogen.

They have developed a new way of producing ammonia which reduces nitrogen oxide emissions by 87 per cent, sulphur dioxide by 95 per cent and carbon dioxide by 60 per cent — and it uses less resources.