Exhaust gas is to blame: Ground-level ozone is damaging crops

It is generally known that pollution has damaged the ozone layer around the Earth. The ozone layer is important for protecting life from harmful UV rays from the sun. However, the fact that pollution leads to too much ozone ...

Power plants produce more ultrafine dust than traffic

Ultrafine particles affect both health and climate. In urban areas, road traffic is considered to be the main source of the small particles. However, a long-term measurement campaign of researchers of Karlsruhe Institute ...

Microwaves against cold-start emissions

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 ...

Dynamic catalytic converters for clean air in the city

Reducing pollutant emission of vehicles and meeting stricter exhaust gas standards are major challenges when developing catalytic converters. A new concept might help to efficiently treat exhaust gases after the cold start ...

Researchers find alarming NOx-emissions from diesel cars

By now, it's no secret: the certification requirements for cars in the EU and in Switzerland have precious little to do with the cars' actual exhaust emissions on the roads. The "real" exhaust emissions are, therefore, determined ...

Exhaust fumes as a resource

Chemists at Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) have developed a process in which nitrogen oxides generated during industrial processes can be used in the manufacture of colourants and medicines. Using ...

Exhausting our green shipping options

In 2013, the International Maritime Organization (IMO) introduced new regulations to reduce exhaust emissions attributed to the shipping industry. Shipping is responsible for around 90% of global trade and the effect of reducing ...

New scrubber does not pollute sea water

Fresh-water gas exhaust scrubbers produce so little effluent that, in the future, it will be possible to build ships with zero effluent discharge into the sea, reveals a new study from the University of Vaasa, Finland.

Fuels that do not produce hazardous exhaust gases

Modern combustion engines become increasingly economical and clean. Engine developers, however, are now facing the technical conflict of whether fuel consumption or exhaust gas emission is to be further reduced. This Gordian ...

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