Emissions

A suite of tools and supporting information are available to help local authorities assess their local emissions:

EXEMPT Model - Dealing with Cold Start Emissions

The EXEMPT Model is in two parts; both parts are an evolution of the previous TRAMAQ3 EXEMPT Model 4. The models can be used as simple tools for assessing the effects of certain types of developments; for example, a new out-of-town shopping complex, the effects of the school run, or changing a city centre car park, where many cars may make their journey with cold engines. The models give results as excess emissions (units of mass per metre driven) for up to 10 kilometres from the vehicles starting point, not concentrations (mass in air). Further work is required independently of the model to calculate concentrations.

Two versions of the tool are provided; a basic version and a version for advanced users. Each model comprises an MS Excel spreadsheet and accompanying user guide. Users are strongly advised to read the user guide and study the worked examples in this guide before they incorporate emissions from this model into a larger modelling study.

Biomass Emissions Screening Tool

Download the Biomass Emissions Screening Tool Version 7 (XLS 312 KB) - a MS Excel spreadsheet based toolkit which can be used to screen emissions from biomass plant.

Industrial Emissions Screening Tool

Download the Industrial Emissions Screening Tool Version 3 (XLS 315 KB) - a MS Excel spreadsheet based toolkit which can be used to screen emissions from industrial plant.

CHP Emissions Screening Tool

Download the CHP Emissions Screening Tool Version 1.3 (XLS 151 KB) - a MS Excel spreadsheet based toolkit which can be used to screen emissions from gas-fired CHP plant [externally hosted].

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