Which is more polluting to the environment, diesel or gasoline?

Diesel engines are more environmentally friendly, and European diesel vehicles account for 60%-70%.

Higher compression ratio and higher thermal efficiency. Secondly, the emission of carbon monoxide and hydrocarbons from diesel is only a fraction of that from gasoline, but the emission of nitrogen oxides from diesel is much higher than that from gasoline.

Diesel engine uses compressed air to raise the air temperature, which exceeds the diesel auto-ignition test. At this time, diesel, diesel spray and air are simultaneously injected and ignited. Compared with gasoline engines, diesel engines have the advantages of low price and good economy, and there is no ignition system, so there are fewer failures. ?

Extended data:

Present situation of domestic diesel vehicles

According to the "20 13 Annual Report on the Prevention and Control of Motor Vehicle Pollution in China" issued by the Ministry of Environmental Protection, only 10. 1% of vehicles meet the national standard, 5 1.5% meet the national standard, 15.7% meet the national standard and 65438+ meet the national standard. The remaining 7.8% cars still can't meet the national standard.

Compared with domestic diesel vehicles, many foreign countries have a high market share, and the unit emission pollution of diesel oil is actually lower than that of gasoline, and the power is stronger. In China, domestic diesel vehicles are not even allowed to be licensed in many areas. In the final analysis, the domestic diesel quality is not up to standard, because if the diesel engine is the national standard, but the diesel quality is not up to standard, then the domestic cars will definitely be affected during driving.

People's Network-The pollution source of diesel vehicles is complex, and the quality of domestic diesel needs to be improved urgently.

People's Daily Online-The battle for diesel pollution control started.