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EMIT 2 Emissions Inventory Toolkit

Viewing and manipulating data
EMIT contains an integrated visualisation and manipulation utility called the EMIT Mapper. It allows source data not only to be displayed graphically but also manipulated. New sources may be added and existing sources may be moved between groups. The geometry of a source may be changed directly, perhaps by using background map data as a guide. Additionally, sources may be edited via their EMIT source data screens. The map created in the EMIT Mapper can be copied and pasted into other packages such as Microsoft Word.

An Emissions Inventory viewed in the EMIT Mapper

The Mapper allows the user to choose which source types to show or hide. Sources can then be selected and are highlighted in red in the above image and also listed in the Selections window. The Mapper has various GIS tools and options are available for filtering and shading the sources. The Database Explorer displays all the inventories within the database and the source groups within each inventory.

WHY USE EMIT?
Setting up an emissions inventory
It is straightforward to set up an emissions inventory in EMIT, for example for a ‘Base Case’ year.

• Traffic management
  When local authorities develop air quality action plans, an important aspect is estimating the emissions consequences of traffic management schemes. EMIT has been specifically designed to help with this task. The figure below is a schematic diagram showing an approach for investigating the effectiveness of traffic management schemes. You may want to consider the effect on emissions of:
  > Proposed traffic management schemes;
  > The introduction of cleaner technology with time (emission factors are included for fleets up to 2025); and
  > Both of these together.
  

• Greenhouse gas emission reduction scenarios
  As a step towards meeting Agenda 21 or Kyoto targets, it is increasingly important to assess greenhouse gas emissions and to consider ways of reducing them. EMIT can be used to:
  > Calculate current greenhouse gas emissions from all source types including traffic, industry, the domestic sector and public services, using either 'bottom-up' or 'top-down' approaches;
  > Consider any changes in emissions for future years (for example CO₂ emissions from 'end-use' electricity vary, as power is generated from different sources over time); and
  > Evaluate any proposed emission reduction scenarios.

Emissions from the domestic sector are of particular interest with regard to Greenhouse Gases. EMIT includes a module to estimate CO₂ emissions from domestic dwellings based on the Government’s Standard Assessment Procedure for Energy Rating of Dwellings. This allows users to estimate CO₂ emissions by specifying five housing parameters:

• Fuel type
• Space and water heating efficiency
• House type
• Insulation (walls and roof)
• Insulation (doors and windows)

User Support
EMIT is supplied with a comprehensive User Guide that includes chapters on Setting up an Emissions Inventory, Traffic Management and Greenhouse Gas Inventories, as well appendices giving full details of all the emission factors datasets included within the database.

An annual maintenance contract provides support for users; this includes.

• maintenance model upgrades,
• use of the 'Helpdesk' by email, phone, fax or post, and
• access to the password-protected User Area.

Two-day EMIT training courses are also available.

FURTHER INFORMATION

Buy EMIT now!
EMIT 2.2 is now available to buy online. To see the pricing options and place your order, go to the buy online page.

Brochures and presentations
The latest EMIT brochure can be downloaded here (2.2MB). For more details regarding EMIT, you can also download a Microsoft Power Point presentation (2MB).

Contact CERC
If you would like any further information or to speak to one of our consultants about EMIT, please contact CERC.

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