Annex
HIGHWAYS AGENCY
ENVIRONMENTAL IMPACT
ASSESSMENT
Section 8. Air Quality
8.1.1 Identify and assess air quality impact
associated with the construction and operation of the Scheme and
the impact of changes on the local road network and the extended
study area.
8.2.2 Levels of pollutants have been predicted
for the baseline year of 2004 and situation that would exist without
the Scheme and for situation with the Scheme for opening year
2010.
8.2.8 Monitoring undertaken by means of
NO2 diffusion tubes . . . with a reasonable level of accuracy
. . . undertaken in five phases (between Nov 2004 and June 2005).
8.2.12 Sufficient data is not available
. . . to locally bias asjust data set and hence the UK provided
factor has been used.
8.2.18 Tameside MBC have three NO2 diffusion
tubes in the area and High Peak BC in Tintwistle. Data from these
monitoring tubes has not been used to form background concentrations.
8.3.10 Under Kyoto Protocol UK has legal
obligation to reduce emissions of greenhouse gases to 12.5% below
1990 levels by 2008. 2012. UK set domestic target of 20% reduction
in CO2 emissions below 1990 by 2010.
AIR QUALITY
IMPACT ASSESSMENT:
(HIGHWAYS AGENCY
APPENDIX 2.8.1.)
CO2 Emissions
|
| Base year 2004 | 22,647 tonnes year
|
|
| Without the bypass 2010 | 21,711 tonnes year
|
| With the bypass 2010 | 26,380 per year
|
|
Other emissions: shown as kg/year
CO
|
| Base year 2004 | 169,971 |
|
| without bypass 2010 | 110,861
|
| with bypass 2010 | 129,688 |
| HC | |
|
|
| Base year 2004 | 28,116
|
|
| without bypass 2010 | 17,880
|
| with bypass 2010 | 19,476
|
| NOx | |
|
|
| Base year 2004 | 149,828
|
|
| without bypass 2010 | 97,630
|
| with bypass 2010 | 108,605
|
| PM10 | |
|
|
| Base year 2004 | 5,033
|
|
| without bypass 2010 | 2,746
|
| with bypass 2010 | 3,045
|
|
8.8.27 A comparison of the do minimum and do something
scenarios indicates that there would be an overall increase in
all emissions with the scheme (bypass) This is because the traffic
redistributed on to the bypass would be able to travel faster
than without the scheme. THERE IS ALSO AN INCREASE IN TRAFFIC
FLOW ACROSS THE MAIN A57-A628 ROUTE CORRIDOR.
8.10.8 In terms of reducing the regional impacts ie CO2
emissions, there is no realistic mitigation available.
February 2006
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