燃烧过程中常见的污染物有一氧化碳、二氧化硫、氮氧化合物和烟尘，燃烧还会产生噪声污染、热污染和铅污染等。 在燃烧过程中，大量热量的积聚将引起环境的热污染。
采用天然气作主要燃料柴油作辅助燃料的双燃料发动机，因天然气燃烧污染低将会得到广泛的应用。
The dual fuel engine, which uses natural gas as primary fuel and diesel oil as assistant fuel, will be used widely because of the low pollution of natural gas.
这是因为MTBE是一种具有许多技术优势的复合物，它可以帮助生产高质量，低燃烧污染的汽油，从而改善空气质量。
This is because MTBE is a compound with a lot of technical advantages, that help produce quality, clean-burning gasoline which leads to improved air quality.
最后，石油及其产品的提炼和燃烧过程会造成空气污染。
Finally, the refining and burning of petroleum and its products can cause air pollution.
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