small in size, big problem

  • 14/09/2003

small in size, big problem The Western world has come a long way in its drive to reduce air pollution from vehicles. Just over a decade back, the focus was on total suspended particulate matter (which includes natural dust too) and the black smoke vehicles emitted. Epidemiological evidence made governments shift the focus to respirable particles (particles smaller than 10 micron). With increasing evidence that vehicular emissions were a major health menace, these countries scaled up vehicle emission standards: Euro norms in the European Union and Tier I norms in the US. These norms reduced emissions from vehicles, but regulation kept up the demand for more stringency in the future. The automotive industry had no option but to find technological solutions

Related Content