Health & Air Quality

Nitrogen oxides (NOx) and nitrogen di-oxide (NO2) are toxic air pollutants coming mainly from the exhaust of diesel-powered engines. It contributes to the formation of smog, ground level ozone, acid rain, and is a significant factor in determining the air quality in urban areas. It is also related to many respiratory illnesses such as bronchitis, emphysema, asthma and can also aggravate existing heart diseases. NOx and NO2 are an increasing problem in our cities mainly due to the large number of diesel-powered trucks and passenger cars throughout the world. To encourage car and truck manufacturers to find and implement NOx reducing solutions, a number of laws have been passed worldwide, establishing limits for NOx levels in the exhaust.

Most of these limits are NOT met in real-world driving; in fact they are not even close!

With our new world standard NOx reduction technology, we offer the car and truck industry a new and solid way to reduce toxic NOx emissions from diesel engines while actually reducing fuel consumption and CO2 footprint!

We dose precise quantities of gaseous ammonia into the exhaust line, where an SCR catalyst then converts the toxic NOx gasses into harmless nitrogen and water. Our safe, compact and economical ammonia storage and delivery system – ASDS™ – now opens up for new ways to accomplish a cleaner urban environment.

Facts about nitrogen oxides (NOx) and nitrogen di-oxide (NO2

  • NOx contributes to acid deposition and effects ecosystems in rivers and lakes and damages forests, crops and other vegetation
  • NOx contributes to eutrophication can lead to severe reductions in water quality, and decreased biodiversity
  • NO2 can at high concentrations cause respiratory problems such as inflammation of the airways and reduced lung function, increasing susceptibility to respiratory infection
  • NO2 contributes to the formation of secondary particulate aerosols and tropospheric ozone in the atmosphere, both with adverse impacts on human health and other climate effects

Stricter regulation

With the aim to cure the discrepancy between legislation and real-driving emissions (RDE) and to counter the adverse effects of NOx and NO2 emissions, governments and regulatory bodies around the world are tightening local and regional emissions standards and regulations.

  • The European Commission (EC) and the California Air Resources Board (CARB) are raising the bar for NOx/NO2 emissions standards. These and other emissions standards are applied around the world.
  • In EU real driving emissions (RDE) legislation will be in effect by 2017/2018. This includes vehicle certifications subject to validated real-world emissions NOx measurements Portable Emissions Measurement System (PEMS). Compared to the current practice where vehicles are certified to non-real-world test cycles this is a huge step forward is assuring drastically better Air Quality in European cities and around the world.
  • Some local governments are taking it a step further by enforcing limits for NO2 emissions in connection with low-emissions zones, typically in inner cities of capital cities.

Emissions & fuel economy

While emissions regulation will be tightened significantly fuel economy must continue to improve in order to reduce greenhouse gas emissions (CO2)

  • Fuel economy and greenhouse gas emissions (CO2): 2050 EU goal is 60% reduction - 1990 baseline, until now up by 36%!
  • EU greenhouse gas emissions (CO2) – Commercial vehicles (buses & trucks, in particular) accounts for 30%
  • Some local governments are taking it a step further by enforcing limits for NO2 emissions in connection with low-emissions zones, typically in inner cities of capital cities.
  • Selective Catalytic Reduction (SCR) enabled 100% by ASDS™ is the most fuel/CO2 efficient solution for Euro VI and Euro VI/RDE compliance.