Weldex, the UK’s largest crawler crane hire company, has retrofitted three of its crawler cranes with Continuously Regenerating Trap (CRT®) diesel particulate filters (DPFs) from Eminox, to make them compliant for use in the London NRMM Low Emission Zone (LEZ).
Since September 2015, Non-Road Mobile Machinery (NRMM), with engines of a net power of 37kW and 560kW, which are used on any major development within Greater London have been required to meet Stage IIIA emissions regulations as a minimum or retrofit best available technology; whilst NRMM used on any site within the Central Activity Zone or Canary Wharf has to meet Stage IIIB as a minimum.
Research by the London Atmospheric Emissions Inventory (LAEI) estimates that diesel engine NRMM used on construction sites is responsible for 15% of Particulate Matter (PM10) emissions in Greater London. Diesel exhaust emissions and especially PM10 have been classified as carcinogenic to humans, with an increased risk of lung cancer and other serious health-related conditions. From 2020 any development site in Greater London will be required to meet Stage IIIB, whilst central London and Canary Wharf will need to meet Stage IV