Eminox, Miller Road, Corringham Road Industrial Estate, Gainsborough, DN21 1QB, UK Tel: +44 (0)1427 810088 Email: enquiries@eminox.com Web: www.eminox.com Case Study: Transports Metropolitans Barcelona Improving Air Quality in Barcelona The Catalan government has introduced a plan to improve air quality by upgrading all Euro 2 and 3 public transport buses in Catalonia to Euro 4 standard. Transports Metropolitans de Barcelona (TMB) is th

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