A LOW EMISSION ZONE FOR NON-ROAD MOBILE MACHINERY
Since 2008, heavy duty diesel road vehicles have had to meet emissions standards for PM to avoid being charged for travelling within the London Low Emission Zone (LEZ).The Mayor has recently announced his intention to introduce an ultra low emission zone in central London from 2020. This will require all vehicles to be either zero or ultra low emission.
It is also important to take action to reduce emissions from non-road mobile machinery (NRMM) to protect and improve Londoners health. The latest version of the London Atmospheric Emissions Inventory estimates that in 2013 the NRMM used on construction sites was responsible for 7% of NOx emissions, 14% for PM2.5 and 8% of PM10 emissions in Greater London.
To address this significant contribution by non-road mobile machinery to London's poor air quality the GLA has put in place policies to control the emissions from this equipment by establishing emissions standards for London.
2015 EMISSION STANDARDS
From 1 September 2015 NRMM of net power between 37kW and 560kW used in London will be required to meet the standards set out below. This will apply to both variable and constant speed engines for both NOx and PM. These standards will be based upon engine emissions standards set in EU Directive 97/68/EC and its subsequent amendments. NRMM used on the site of any major development within Greater London will be required to meet Stage IIIA of the Directive as a minimum; and NRMM used on any site within the Central Activity Zone or Canary Wharf will be required to meet Stage IIIB of the Directive as a minimum.
From 1 September 2020 the following will apply: NRMM used on any site within Greater London will be required to meet Stage IIIB of the Directive as a minimum. NRMM used on any site within the Central Activity Zone or Canary Wharf will be required to meet Stage IV of the Directive as a minimum.
These requirements may be met using the following techniques;
- Reorganisation of NRMM fleet
- Replacing equipment (with new or second hand equipment which meets the policy)
- Retrofit abatement technologies
All eligible NRMM should meet the standards above unless it can be demonstrated that the machinery is not available or that a comprehensive retrofit to meet both PM and NOx emission standards is not feasible. In this situation every effort should be made to use the least polluting equipment available including retrofitting technologies to reduce particulate matter emissions.
It is recognised that some NRMM plant is not yet widely available in the numbers required to meet the above standards and that some options for retrofitting or reengining are not currently available or are cost prohibitive. The GLA retrofit policy includes a list of NRMM that is exempt from this policy and what criteria individual machines will need to meet to obtain an exemption.