Johnson Matthey is a leading supplier of retrofit diesel emissions control systems for non-road machinery.

United Kingdom

Non-road Mobile Machinery (NRMM) Emissions Legislation

The SPG seeks to reduce emissions of dust, PM10 and PM2.5 from construction and demolition activities in London. It also aims to manage emissions of nitrogen oxides (NOx) from construction and demolition machinery by means of a new non-road mobile machinery Ultra Low Emissions Zone (ULEZ).  The SPG:

Provides more detailed guidance on the implementation of all relevant policies in the London Plan and the Mayors Air Quality Strategy to neighbourhoods, boroughs, developers, architects, consultants and any other parties involved in any aspect of the demolition and construction process;

sets out the methodology for assessing the air quality impacts of construction and demolition in London; and

identifies good practice for mitigating and managing air quality impacts that is relevant and achievable, with the over-arching aim of protecting public health and the environment.

Further details and information on non-road regulations in the UK for new machinery is available from the Department of Transport.

A new website aimed at helping the construction industry to understand its impact on air quality and encourage pollution reduction measures has been launched by King's College London: London Low Emission Construction Partnership (LLECP),

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