Automotive

Diesel innovation has humble beginnings

An engine innovation first conceived and tested by Sandia National Laboratories has attracted the attention of big business because of its potential to cost-effectively reduce emissions of soot and nitrogen oxides, encourage ...

Automotive

US fines Hyundai $47 mn over dirty diesel engines

South Korean shipbuilding and industrial firm Hyundai Heavy Industries will pay a $47 million fine for illegally importing and selling dirty diesel engines in violation of American environmental rules, US authorities announced ...

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Nitrogen oxide

The term nitrogen oxide typically refers to any binary compound of oxygen and nitrogen, or to a mixture of such compounds:

(Note that the last three are unstable.)

Chemical reactions that produce nitrogen oxides often produce several different compounds, the proportions of which depend on the specific reaction and conditions. For this reason, secondary[clarification needed] production of N2O is undesirable, as NO and NO2 — which are extremely toxic — are liable to be produced as well.

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