World Media

Diesel emits higher NOx in real world conditions

Diesel emits higher NOx in real world conditions

Emissions from the world's fleet of cars, lorries and buses account for 38,000 premature deaths annually worldwide, claims a study co-authored by University of Colorado Boulder researchers.

Many car-makers, in particular, designed their vehicles in such a way that they pass the laboratory test, which does not go far enough in mimicking the conditions of real-life driving. But had the emissions met the testing standards imposed in those markets, the amount of NOx produced would have been closer to 8.6 million tons, said the scientists.

"A lot of attention has been paid to defeat devices, but our work emphasizes the existence of a much larger problem", said Daven Henze, an associate professor of mechanical engineering at CU Boulder who, along with postdoctoral researcher Forrest Lacey, contributed to the study. Excess NOx emissions are rising, the researchers found, and strict pollution controls need to be put in place to avoid the death toll rising to 174,000 in 2040.

In Europe the failure to meet emissions standards could be leading to the deaths of 11,500 people every year, the new report by the University of York and the International Council on Clean Transportation.

Google Doodle marks discovery of world's first computer
The odd object resembled a wheel or a gear, and it captured the attention of the archaeologist, who took it for further study. The mechanism is incredibly advanced for its time, as it features complex components which resemble those found in clocks.

Researchers found one-third to one-half of vehicles exceed the limits for diesel emissions, especially buses and heavy duty trucks.

The new research covers 80% of the world diesel market, including Australia, Brazil, Japan, Mexico and Russian Federation.

In 2015, diesel vehicles generated 13.1 million tons of NOx in the 11 major vehicle markets studied. NOx gases react to form smog and acid rain as well as being central to the formation of fine particles (PM) and ground-level ozone, both of which are associated with adverse health effects like disability, lung cancer, heart disease and more.

Pollution from diesel trucks, buses and cars globally is more than 50 percent higher than levels shown in government lab tests, a new study says.

Trump does not think U.S. should copy Australia's health system: White House
Trump regaled the crowd with stories about how he agreed to give the Fox News owner cash for a US-Australia charity. White House officials said the US-Australia refugee deal still stood, but remained a "raw nerve" for Mr Trump.

Along with Carbon dioxide and CO, nitrogen oxide is one of biggest contributors to air pollution.

With the impact of diesel emission scandals still reverberating, a major global study from northern hemisphere experts has highlighted the gap between mandated limits and outcomes and what can be done to reduce health impacts of emissions.

Susan Anenberg, co-lead author of the study, said: "The consequences of excess diesel NOx emissions for public health are striking". That translates to 38,000 deaths due to "excess" emissions, out of an estimated total of 107,000 lives foreshortened to diesel vehicle and truck fumes in 2015, the researchers found.

"Implementing Euro 6/VI standards where they are not yet adopted (Australia, Brazil, China, Mexico and Russian Federation; the Euro 6/VI scenario) would reduce HDV NOx emissions by 80%-90% compared to the 2040 baseline and avert substantial increases in LDV NOx emissions", the report says. It's important to understand that diesel has been a technology of continuous improvement, meaning that today's generation of new diesel technology is lower in emissions and more efficient than one built 10 or even five years ago.

Blake Lively all set to star in action-drama 'Bruised'
Lively proved that she could carry a film with last year's breakout The Shallows , which took $119 million globally. Blake Lively is about to make her fictional mixed martial arts debut.

The diesel emissions scandal erupted when Volkswagen was exposed as having installed "cheat devices" in their cars, a revelation in which the ICCT played a major role.


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