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9. <strong>London</strong>’s air quality and greenhouse gas emissions and transport and public health<br />

Figure 9.4<br />

Progress towards CO 2 reduction targets – emissions from ground-based<br />

transport <strong>in</strong> <strong>London</strong>.<br />

Annual CO 2 emissions (Mt)<br />

10<br />

9<br />

8<br />

7<br />

6<br />

5<br />

4<br />

3<br />

2<br />

1<br />

1.4<br />

1.2<br />

1<br />

0.8<br />

0.6<br />

0.4<br />

0.2<br />

CO 2 per capita (t)<br />

0<br />

1990 2010 2015 2020 2025 2030<br />

Road Transport<br />

Aviation<br />

Shipp<strong>in</strong>g<br />

National Rail<br />

<strong>London</strong> Underground<br />

Croydon Traml<strong>in</strong>k, <strong>London</strong> Overground and DLR<br />

Crossrail<br />

CO2 per capita (T)<br />

0<br />

Source: TfL Plann<strong>in</strong>g Strategic Analysis.<br />

9.5 Emissions of CO2, PM10 and NOx from ground-based transport <strong>in</strong><br />

<strong>London</strong><br />

Introduction<br />

This section provides provisional updated estimates of the trends <strong>in</strong> key<br />

greenhouse gas and local air quality pollutants from ground-based transport <strong>in</strong><br />

<strong>London</strong> between 2008 and 2013.<br />

The data reflect early results from TfL’s update to the <strong>London</strong> Atmospheric<br />

Emissions Inventories, which is currently near<strong>in</strong>g completion. The data <strong>in</strong> this<br />

section are therefore presented on a provisional basis. Full details of the updated<br />

<strong>in</strong>ventories will be published dur<strong>in</strong>g 2016, and the data made available to air quality<br />

practitioners.<br />

What is the LAEI?<br />

The LAEI provides estimates of the annual emissions of a wide variety of pollutants<br />

<strong>in</strong>clud<strong>in</strong>g NO x , PM 10 and CO 2 , from many different sources with<strong>in</strong> <strong>London</strong>. These<br />

sources <strong>in</strong>clude ground-based transport (road transport, shipp<strong>in</strong>g, rail and aviation),<br />

along with other emissions from domestic and commercial gas use, <strong>in</strong>dustrial<br />

sources, and Non-Road Mobile Mach<strong>in</strong>ery (NRMM) related to construction<br />

activities.<br />

The LAEI2013 provides Excel and GIS files of emissions over grids, which represent<br />

the GLA and areas roughly with<strong>in</strong> the M25. The emissions for the years 2008, 2010,<br />

2013, 2020, 2025 and 2030 are <strong>in</strong>cluded. Emissions from each source can be<br />

171 <strong>Travel</strong> <strong>in</strong> <strong>London</strong>, Report 8

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