EQUA air quality index

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The EQUA Air Quality Index is an independent authority on how car emissions affect air quality.All vehicles running on diesel or petrol emit air polluting nitrogen oxices, but the amount varies significantly from car to car.  To enable a fair comparison between different models, Emissions Analytics has a standard, proprietary test route.  The route covers a mix of urban, rural and motorway driving, designed to reflect typical – rather than extreme – driving styles.  Each car is tested in the same way, by the same team of drivers, within a consistent range of climatic conditions.  All tests are checked for data quality and consistency, to ensure the EQUA Index is a fair reflection of performance.

By accessing the EQUA website, one can check how models tested to date compare - http://equa.emissionsanalytics.com