measuring real traffic emissions without affecting the traffic flow


real traffic emissions:


FOR MODERN VEHICLES, the difference between their emissions and their type-approval limits is still VERY LARGE

The vehicles are homologated in controlled tests. Although a more stringent new regulation has just entered into force, real life is harder than testing scenarios and vehicles emit more than during their type-approval tests. That is why  vehicles' emissions must be measured in real traffic conditions, in a non-intrusive and massive way.

Air pollutants above certain concentrations, especially particulate matter (PM) and nitrogen oxides (NOx), are a serious risk to public health. Numerous studies have identified a direct relationship between poor air quality and the number of hospital admissions and premature deaths. These reports have quantified in billions of Euros the economic impact of air pollution in Europe.


Air pollution causes 400,000 premature deaths in Europe every year, according to the European Environment Agency (EEA). Bad air quality is problem #1 in Europe.


From all sources of pollutant emissions, road traffic has become more relevant in the cities. Its importance grows with the population density.


In fact, road traffic may contribute with up to 80% of total pollutants in urban areas.


Therefore, controlling and reducing the emissions from motor vehicles must be a priority action on this area.


Highly polluting vehicles are very heterogeneous: cars, trucks, vans, motorcycles... Gasoline and diesel... Old and new... You will find misaligned or manipulated vehicles in all categories. It is necessary to monitor the traffic emissions of the cities to find these vehicles.

understanding exhaust emissions

A recent report by the world health organisation highlighted that the costs of air pollution damage are equivalent to 10% of europe´s gdp

Air pollution is now “the biggest environmental risk” to public health in Europe but governments are failing to adequately deal with the crisis, the EU Court of Auditors has found. Toxic air kills an estimated 400,000 Europeans before their time each year.


“More than 1,000 premature deaths every day across the EU and more than 1% of the daily total of deaths in the EU. This is 10 times higher than the number of car accident deaths.”

Just A few vehicles pollute a lot!

Based on our empirical research performed over the last years, it has been observed that:

* Distribution of vehicles over the Opus RSE suggested cutpoint to the Spanish Government in 2015

  • In Europe, 10% of the vehicles contribute with around the 40% of the total on road emissions.
  • The economic impact of this 10% is huge and by acting only on them, savings of millions of euros can be achieved.
  • New vehicles do not mean lower emissions. More than a half of these high emitters are relatively new vehicles (From Euro 4 to Euro 6).
  • The difference between what the Euro Standards are demanding and the real vehicles emissions is increasing with time.

These vehicles are named as High-Emitters (HE). Our RSD makes it possible to find the HIGH-EMITTERS circulating in a city, thanks to the creation of a search and identification program, monitoring traffic emissions across the main roads and districts of a metropolitan area.

the solution TO REDUCE TRAFFIC EMISSIONS is to create efficient mobility policies: IDENTIFY THE DIRTIEST VEHICLES

It is possible to efficiently reduce traffic pollution if you have the right information.


In the past, once it was possible to measure emissions from the industrial sector, control policies were introduced. That resulted in a reduction of emissions of aproximately 50%. Emissions from transport sector can also be reduced if they are controlled.


Thanks to the RSD technology, measure and control of traffic emissions is possible.

About us

Opus RSE, established in 2013, is an European leader in the sector of the real time emissions monitoring and road traffic characterization, an area in which develops solutions marked by innovation and sustainability.


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Our services

Sustainable mobility is our business area and our main activity is the control and reduction of road fleets emissions.

Our services are offered both to public administrations and private companies.



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Whether you´re looking for answers, would you like to solve a problem, or just want to let us know how we did, you´ll find all the details to contact us right here.

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