An international team of scientists has reconstructed a historic record of the atmospheric trace gas carbon monoxide by measuring air in polar ice and air collected at an Antarctic research station.
Earth Sciences
Nov 15, 2023
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61
Jouncing along to school in a fume-spewing, rattletrap yellow bus is practically a rite of passage for most American students.
Economics & Business
Apr 11, 2023
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7
Air pollution from fuel combustion is one of the greatest environmental problems, especially in urban environments. In densely populated cities, the presence of nitrogen oxides, very small carbon particles, and carbon monoxide ...
Biochemistry
Feb 25, 2021
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6
Getting rid of old cars is helping clean the skies over developed nations, but many clunkers are ending up in developing countries where they are add significantly to air pollution, a UN report warns.
Environment
Oct 27, 2020
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4
As the lives of millions of people worldwide were disrupted by social distancing measures to combat the COVID-19 pandemic in early 2020, an unexpected piece of good news surfaced: levels of air pollution in major cities had ...
Materials Science
Apr 23, 2020
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8
Modern cars rely on catalytic converters to remove carbon monoxide, hydrocarbons and other harmful chemicals from exhaust emissions.
Analytical Chemistry
Aug 14, 2019
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9
Russian chemists from NUST MISIS have developed a new hybrid catalyst for carbon monoxide oxidation consisting of hexagonal boron nitride and silver nanoparticles. This material makes it possible to get a full conversion ...
Materials Science
Dec 12, 2018
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4
Researchers from Tokyo Metropolitan University have developed a way to mount gold nanoparticles on a molecular support known as a polyoxometalate (POM). They successfully applied this to realize nearly 100 percent conversion ...
Materials Science
Feb 9, 2018
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11
During cold start, a car engine emits far more particulate matter and other pollutants than during warm conditions. This is because a cold catalytic converter is much less efficient at low exhaust gas temperatures. So what's ...
Materials Science
Dec 5, 2017
1
9
At Karlsruhe Institute of Technology (KIT), scientists have studied ceria nanoparticles with the help of probe molecules and a complex ultrahigh vacuum-infrared measurement system and obtained new insights into their surface ...
Nanomaterials
Nov 16, 2017
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3
