Updating and Screening Assessment 2006
Air Quality Assessment
Isle of Wight Council
April 2006
Executive Summary
An Updating and Screening Assessment (USA) has been performed for the seven UK criteria pollutants, for the Isle of Wight. The aim of this assessment is to determine whether there is potential for exceedences of any of the UK National objectives.
Since the last Updating and Screening Assessment, a Detailed Assessment of benzene and sulphur dioxide has been carried out and a Progress Report detailed concerns that exceedences of the nitrogen dioxide air quality objective may be occurring. No changes to industrial processes or other sources have occurred since 2003. An assessment of NO2 and PM10 concentrations at junctions has been carried out for the relevant objective years based on new traffic data.
The results of this USA indicate that a Detailed Assessment for NO2 is required. This is due to the fact that exceedences of the 2005 NO2 UK Air Quality Objective have been exceeded at two monitoring sites in the area over the last three years.
Table of Contents







  1. Introduction
  • 1.1 Summary of Review and Assessment since 2004.
The Isle of Wight Council has carried out Review and Assessment work since 2000, completing Stage 1 in April 2000. The following points summarise the last Updating and Screening Assessment (USA) from 2004, and the stages which have been undertaken since then.
  • 1.1.1 2004
    • Updating and Screening Assessment, 2004 by AEA Technology. No AQMAs declared with possible exceptions for benzene and SO2. Therefore a Detailed Assessment was required for these pollutants in 2005.
  • 1.1.2 2005
    • Detailed Assessment of Benzene and SO2, January 2005 by Faber Maunsell. No AQMAs to be declared, but further monitoring of benzene may be required.
    • Progress Report, February 2005. 3 months monitoring of benzene to be carried out, results anticipated July 2006, to be included in Progress Report 2006. Nine NOx monitoring sites maintained until 2005. No possibility of exceedences at sites except at IW4 and IW8, therefore decision made to discontinue all except these two. Detailed Assessment of NOx may be necessary based on exceedences at two sites.
    • Progress Report Appraisal, March 2005. Some new locations may be likely to exceed NOx objectives, so a Detailed Assessment may be required. Defra to be informed of decision.
    • Benzene Monitoring, October 2005 Results released and no exceedences likely in current situation and so no AQMA declared. With the view to major development on the IOW in the future years, further monitoring may be necessary. See Appendix C for results.
  • 1.1.3 2006, Current Situation
Diffusion tube bias correction factors have previously been applied incorrectly to IW8. These therefore need to be checked to determine whether Air Quality Objectives have been exceeded at this location. If this is the case then exceedences may be occurring at additional locations. Monitoring at these locations would then be necessary and a Detailed Assessment for NOx would be required.
There are several proposed major developments proposed for the Isle of Wight. Two major developments include The East Cowes Project, which involves the demolition of several buildings to accommodate a proposed mixed use development and a second major development in the East Cowes/ Whippingham area. These proposed developments have the potential to impact upon traffic flows and new roads may need to be built, which could also impact upon air quality.
  • 1.2 Information used to Support the Assessment
  • 1.2.1 Traffic Data
Traffic data was supplied by the IOW Council and is included in Appendix A.
  • 1.2.2 Industrial Sources
The Isle of Wight has 4 Part A Industrial Processes, these are included in Appendix B. A full list of the 53 Part B Industrial Processes can be found in the Stage 2 Report.
  • 1.2.3 Monitoring Data
Monitoring data which has been collected since the last Updating and Screening Assessment is included in Appendices C and D. This includes nitrogen dioxide diffusion tube data and benzene diffusion tube data.
  • 1.2.4 Mapping
The Ordnance Survey Mapping used in this assessment was reproduced from the Ordnance Survey Map with Permission of the Controller of Her Majesty's Stationery Office. The mapping was provided by the Isle of Wight Council © Crown Copyright Reserved License No.DWIG150.
  • 1.3 Overview of Air Quality Legislation and Policy
  • 1.3.1 Overview of Recent Air Quality Legislation and Policy
The provisions of Part IV of the Environment Act 1995 establish a national framework for air quality management, which requires all local authorities in England, Scotland and Wales to conduct local air quality reviews. Section 82(1) of the Act requires these reviews to include an assessment of the current air quality in the area and the predicted air quality in future years. Should the reviews indicate that the standards prescribed in the National Air Quality Strategy (NAQS) and the Addendum to the Strategy will not be met, the local authority is required to designate an Air Quality Management Area (AQMA). Action must then be taken at a local level to ensure that air quality in the area improves. This process is known as ‘local air quality management’.
  • 1.3.2 The Phased Approach to Review and Assessment
The second round of the review and assessment process has been split into two phases: an Updating and Screening Assessment and a Detailed Assessment.
The first phase, the Updating and Screening Assessment, has been designed to review the changes in air quality issues that have occurred within each local authority since the first round of review and assessment. These changes are assessed using appropriate screening methods. Therefore, it should cover:
  • new monitoring data
  • new objectives
  • new sources of pollution
  • significant changes to existing sources of pollution.
The Updating and Screening Assessment also re-examines locations and sources, e.g. road junctions, bus stations, domestic burning, fugitive sources, etc., that have been highlighted as issues during the previous round of review and assessment.
Where the Updating and Screening Assessment has identified a risk that an air quality objective may be exceeded, the local authority must undertake a Detailed Assessment. The aim of this assessment is to determine with as much certainty as is possible whether or not an air quality objective will be exceeded. If an exceedence is predicted, the local authority should designate an AQMA to cover the area of the exceedence.
  • 1.3.3 National Air Quality Strategy (NAQS)
The NAQS identifies eight ambient air pollutants that have the potential to cause harm to human health. These pollutants are associated with local air quality problems, with the exception of ozone, which is instead considered to be a regional problem.
The Air Quality Regulations set standards for the seven pollutants that are associated with local air quality. These objectives aim to reduce the health impacts of the pollutants to negligible levels. The standards stated in the Air Quality Regulations are listed in Table 1.
The revised objectives for benzene, carbon monoxide and suspended particulate matter (PM10), as detailed in the ‘Air Quality (England)(Amendment) Regulations 2002’, are included.
Table 1: UK Objectives included in the Air Quality Regulations 2000 and (Amendment) Regulations 2002
Pollutant
Air Quality Objective
Date to be achieved by
Concentration
Measured as
Benzene
16.25 μg/m3 All authorities
running annual mean
31.12.2003
5.0 μg/m3 Authorities in England and Wales only
annual mean
31.12.2010
1,3-Butadiene
2.25 μg/m3
running annual mean
31.12.2003
Carbon monoxide
10.0 mg/m3 Authorities in England, Wales and N. Ireland.
maximum daily running 8-hour mean
31.12.2003
Lead
0.5 μg/m3
annual mean
31.12.2004
0.25 μg/m3
31.12.2008
Nitrogen dioxide
200 μg/m3 not to be exceeded more than 18 times a year
1 hour mean
31.12.2005
40 μg/m3
annual mean
31.12.2005
Particles (PM10) (gravimetric) All authorities
50 μg/m3 not to be exceeded more than 35 times a year
24 hour mean
31.12.2004
40 μg/m3
annual mean
31.12.2004
Particles (PM10) (gravimetric) Provisional objectives for England (not London) and Wales
50 μg/m3 not to be exceeded more than 7 times a year
24 hour mean
31.12.2010
20 μg/m3
annual mean
31.12.2010
Sulphur dioxide
350 μg/m3 not to be exceeded more than 24 times a year
1 hour mean
31.12.2004
125 μg/m3 not to be exceeded more than 3 times a year
24 hour mean
31.12.2004
266 μg/m3 not to be exceeded more than 35 times a year
15 minute mean
31.12.2005
  1. Pollutant Checklist
  • 2.1 Carbon Monoxide
Checklist Item (from Box 2.2)
Updating and Screening Assessment
Monitoring Data
A) Monitoring data
Carbon monoxide is not monitored on the Isle of Wight
Road Traffic-
B) Very busy roads or junctions in built-up areas
There are no very busy roads or junctions on the Isle of Wight (i.e. single carriageway roads where the AADT>80,000, or dual carriageway roads where the AADT>120,000, or motorways where the AADT>140,000). The busiest road in the authority is Medina Way which has an AADT of 34,334 (2005).
Conclusion
The assessment has indicated that the CO objective is unlikely to be exceeded at any location on the island, and therefore a Detailed Assessment for this pollutant will not be required.
  • 2.2 Benzene
Checklist Item ( from Box 3.2 in TG(03)
Updating and Screening Assessment
Monitoring Data
A) Monitoring data outside an AQMA
Following a Detailed Assessment in January 2005, benzene was monitored for three months during 2005 and no exceedences were predicted. No AQMA was declared, but further monitoring may be necessary as a result of future developments on the island. Monitoring data are presented in Appendix C.
B) Monitoring data within an AQMA
Road Traffic-
C) Very busy roads or junctions in built-up areas
There are no very busy roads or junctions on the Isle of Wight (i.e. single carriageway roads where the AADT>80,000, or dual carriageway roads where the AADT>120,000, or motorways where the AADT>140,000). The busiest road in the authority is Medina Way which has an AADT of 34,334 (2005).
Industrial Sources
D) New industrial sources
There are no petroleum processes or other industrial processes that emit sufficient quantities of benzene on the Isle of Wight, nor have there been any changes since the previous USA to consider for the purpose of this assessment.
E) Industrial sources with substantially increased emissions, or new relevant exposure.
Other Sources
F) Petrol stations
There are no petrol filling stations with an annual throughput of more than 2 million litres per year, near to a busy road (>30,000 vehicles per day), and within 10m of a sensitive receptor.
G) Major fuel storage depots (petrol only)
The only major fuel depot within the authority is located at East Cowes and has a throughput of 50 million litres per annum. Monitoring using passive diffusion tubes at this location has shown that no exceedences of the objective are likely.
Conclusion
Monitoring data taken during 2005 following the Detailed Assessment has indicated that the benzene objectives are unlikely to be exceeded at any location on the island, including the major fuel depot, and no further action will be required.
  • 2.3 1,3-butadiene
Checklist Item (from Box 4.2)
Updating and Screening Assessment
Monitoring Data
A) Monitoring data
1,3-butadiene is not monitored on the Isle of Wight.
Industrial Sources
B) New industrial sources
There are no new industrial processes within the Isle of Wight or within neighbouring authorities, nor are there any industrial sources with increased emissions, or new relevant exposure to consider for the purpose of this assessment.
C) Industrial sources with substantially increased emissions, or new relevant exposure.
Conclusion
The assessment has indicated that the 1,3-butadiene objective is unlikely to be exceeded at any location on the island, and therefore a Detailed Assessment for this pollutant will not be required.
  • 2.4 Lead
Checklist Item (from Box 5.1)
Updating and Screening Assessment
Monitoring Data
A) Monitoring data
Lead is not monitored on the Isle of Wight.
Industrial Sources
B) New industrial sources
There are no new industrial processes on the Isle of Wight, nor are there industrial sources with increased emissions, or new relevant exposure to consider for the purpose of this assessment.
C) Industrial sources with substantially increased emissions, or new relevant exposure.
Conclusion
The assessment has indicated that the lead objectives are unlikely to be exceeded at any location on the island, and therefore a Detailed Assessment for this pollutant will not be required.
  • 2.5 Nitrogen Dioxide
Checklist Item (from Box 6.2)
Updating and Screening Assessment
Monitoring Data
A) Monitoring data from outside an AQMA
No AQMA has been declared on the Isle of Wight. In April 2005 the number of sites where nitrogen dioxide is monitored was reduced from nine to two, leaving sites IW4 and IW8. Exceedences were recorded at these two sites in 2003 and 2005 and at IW8 in 2004. Forecast concentrations to 2010 from 2005 results, predicted IW8 to still exceed the 2005 objective in 2010. Concentrations at the nearest property to IW4 were predicted to exceed the objective, but concentrations at the closest property to IW8 were predicted to be below the objective. A Detailed Assessment is recommended on the basis of these results. See Appendix D for further details.
B) Monitoring data within an AQMA
Road Traffic-
C) Narrow congested streets with residential properties close to the kerb
There has been no change since the previous USA; there are no narrow congested streets with residential properties close to the kerb where there is an AADT flow of above 10,000.
Checklist Item (from Box 6.2)
Updating and Screening Assessment
D) Junctions
The previous round of Review and Assessment did not assess any junctions, but locations with a combined AADT of over 10,000 and with relevant exposure within 10 m of the kerb have been identified. Twelve junctions were assessed using the DMRB Methodology and no exceedences of the objectives were predicted for 2005 or 2010. Concentrations of NO2 were predicted to decrease between 2005 and 2010. See Appendix E.
E) Busy streets where people may spend 1 hour or more close to traffic
There has been no change since the previous USA; there are no busy streets where people may spend 1 hour or more close to traffic where there is an AADT flow of above 10,000.
F) Road with high flow of buses and/or HGVs
There has been no change since the previous USA; there are no roads with unusually high flows of buses and/or HGVs (i.e. greater than 25%)
G) New roads constructed or proposed since the previous round of R &A
There have been no new roads constructed or proposed since the previous USA.
H) Roads with significantly changed traffic flows, or new relevant exposure.
No roads with an AADT of >10,000 have shown a significant increase (>25%) in traffic flow. There is no new relevant exposure.
I) Bus stations
There are no bus stations on the Isle of Wight with relevant exposure within 10 m of the kerb.
Industrial Sources
J) New industrial sources
There are no new industrial processes on the Isle of Wight or within neighbouring authorities, nor are there industrial sources with increased emissions, or new relevant exposure to consider for the purpose of this assessment.
K) Industrial sources with substantially increased emissions, or new relevant exposure.
Other Sources
L) Aircraft
There are two airfields on the Isle of Wight, both of which are used for recreational flights only. There are no commercial flights from these airfields. These airfields will not be considered further for the purpose of this assessment.
Conclusion
Exceedences at IW8 and IW4 have occurred in the past three years. It is therefore likely that exceedences could be occurring at other locations on the island. Further monitoring at sites where the public could be exposed to these levels is therefore recommended and a Detailed Assessment is required for this pollutant.
  • 2.6 Sulphur Dioxide
Checklist Item (from Box 7.2)
Updating and Screening Assessment
Monitoring Data
A) Monitoring data from outside an AQMA
Sulphur dioxide is not monitored on the Isle of Wight and no AQMA was declared following the Detailed Assessment in January 2005.
B) Monitoring data within an AQMA
Industrial Sources
C) New industrial sources
There are no new industrial processes on the Isle of Wight or within neighbouring authorities, nor are there industrial sources with increased emissions, or new relevant exposure to consider for the purpose of this assessment.
D) Industrial sources with substantially increased emissions, or new relevant exposure.
Domestic Sources
E) Areas of domestic coal burning
There are no known areas where significant domestic coal (or smokeless fuel) burning takes place.
Boilers
F) Small boilers >5MW( thermal)
There are no known boilers of greater than 5MW that burn coal or oil on the island.
Other Sources
G) Shipping
There are three car ferry terminals on the Isle of Wight with significant numbers of shipping movements per year (> 5000) and there are relevant receptors within 1 km of the ports.
There have been no changes since the last round of Review and Assessment and the Detailed Assessment in 2005 predicted that exceedences were not likely and that the impact of the ship emissions upon local receptors was not significant. No AQMA was declared.
H) Railway :Locomotives
There is one preserved railway on the Island, operated by two small steam locomotives but there are no locations where diesel locomotives or steam locomotives are regularly stationary for 15 minutes where members of the public may be exposed.
Conclusion
The assessment has indicated that the sulphur dioxide objectives are unlikely to be exceeded at any location on the island, and therefore a Detailed Assessment will not be required for this pollutant.
  • 2.7 PM10
Checklist Item (from Box 8.4)
Updating and Screening Assessment
Monitoring Data
A) Monitoring data from outside an AQMA
PM10 is not monitored on the Isle of Wight and there is no AQMA on the island.
B) Monitoring data within an AQMA
Checklist Item (from Box 8.4)
Updating and Screening Assessment
Road Traffic-
C) Busy roads or junctions in Scotland
N/A
D) Junctions
The previous round of Review and Assessment did not assess any junctions, but locations with a combined AADT of over 10,000 and with relevant exposure within 10 m of the kerb have been identified. Twelve junctions were assessed using the DMRB Methodology and no exceedences of the 2004 PM10 objective were predicted for 2005. Exceedences of the 2010 objective were predicted at six of the twelve junctions but it should be noted that this objective is provisional. See Appendix E.
E) Roads with high flow if buses and/or HGVs
There has been no change since the previous round of assessment; there are no roads with unusually high flows of buses and/or HGVs (i.e. greater than 20%)
F) New roads constructed or proposed since last round of R&A
There have been no new roads constructed or proposed since the previous round of Review and Assessment.
G) Roads with significantly changed traffic flows, or new relevant exposure
No roads with an AADT of >10,000 have shown a significant increase (>25%) in traffic flow. There is no new relevant exposure.
H) Roads close to the objective during the second round of R&A
There were no roads close to the objective during the second round of Review and Assessment (the greatest number of daily exceedences predicted in 2004, at a sensitive receptor, was 8).
Industrial Sources
I) New industrial sources
There are no new industrial processes on the Isle of Wight or within neighbouring authorities, nor are there industrial sources with increased emissions, or new relevant exposure to consider for the purpose of this assessment.
J) Industrial sources with substantially increased emissions, or new relevant exposure.
Domestic Sources
K) Areas of domestic fuel burning
There are no known areas where significant domestic solid fuel burning takes place.
Other Sources
L) Quarries/ landfill / opencast coal / handling of dusty cargo at ports etc
There are ten areas of quarrying activity on the Isle of Wight, but these have not changed since their assessment in the Stage 2 Review.
M) Poultry Farms
There are no poultry farms on the island where it is thought likely that emissions of PM10 could contribute to exceedences of the PM10 objectives.
N) Aircraft
There are two airfields on the Isle of Wight, both of which are used for recreational flights only. There are no commercial flights from these airfields. These airfields will not be considered further for the purpose of this assessment.
Conclusion
The assessment has indicated that the PM10 objectives are unlikely to be exceeded at any location on the island, and therefore a Detailed Assessment will not be required for this pollutant.
  1. Conclusions
The criteria for each of the seven pollutants has been assessed according to the guidance contained within LAQM.TG(03), and its January 2006 update. It is concluded that the national air quality objectives for carbon monoxide, benzene, 1-3-butadiene, lead, sulphur dioxide and PM10 are unlikely to be exceeded at any location on the Isle of Wight and therefore a Detailed Assessment of these pollutants will not be required. Monitoring of nitrogen dioxide on the island has revealed exceedences at two diffusion tube sites in 2005. Concentrations at one site are forecast to still exceed objectives in 2010.Therefore a Detailed Assessment of nitrogen dioxide is required.
Appendix A: Traffic Data
Table 2: Traffic Data
Town
Road
Date of Count
Total
No. Flows
Newport
Medina Way
05/08/2002
32660
2
Newport
Horsebridge Hill
06/08/2001
25776
2
Lake
Lake Hill
28/07/2003
23088
2
Newport
Fairlee Road
06/08/2001
21848
2
Newport
Blackwater Road
11/08/2003
21136
2
Wootton
Eleanors Grove
20/08/2001
19676
2
Apse Heath
Newport Road
05/08/2002
17409
2
Wootton
Lushington Hill
07/10/2002
15990
2
East Cowes
Whippingham Road
20/08/2001
15484
2
Ryde
Quarr Hill
14/07/2003
14446
2
Lake
Newport Road
12/05/2003
14440
2
Newport
Carisbrooke Road
29/07/2001
13886
2
Brading
Brading Road
19/08/2002
13863
2
Newport
Forest Road
23/06/2003
13035
2
Whippingham
Main Road
31/05/2003
12348
2
Sandown
Broadway
01/04/2002
12283
2
Newport
Forest Road
20/08/2001
11979
2
Ryde
St Johns Hill
18/05/2001
11740
2
Newport
Fairlee Road
09/07/2001
11450
1
Newport
Cross Lane
21/05/2001
10439
1
Shanklin
Sandown Road
02/12/2002
9920
2
Ryde
Green Street
01/10/2001
9883
2
Newport
Blackwater Road
30/06/2003
9749
1
Wootton
High Street
30/06/2003
9710
1
Ryde
Binstead Hill
09/06/2003
9417
1
Ryde
Ashey Downs Road
08/09/2003
9205
2
Godshill
Newport Road
05/08/2002
9055
2
Shalfleet
Yarmouth Road
20/08/2001
8887
2
St Helens
Station Road
12/08/2002
8192
2
Lake
Newport Road
13/01/2003
7905
1
Lake
Newport Road
06/01/2003
7774
1
Wroxall
St Johns Road
18/08/2003
7461
2
Newport
Staplers Road
09/06/2003
7268
1
Freshwater
Newport Road
04/08/2003
7202
2
Yarmouth
Tennyson Road
10/09/2001
7062
2
Godshill
Newport Road
04/11/2002
6734
2
Brading
High Street
16/06/2003
6613
1
Ryde
St Johns Road
03/02/2003
6594
1
Brading
New Road
08/07/2002
6509
1
Shanklin
Bonchurch Road
13/08/2001
6500
2
Brading
Beaper Shute
01/04/2002
6452
1
Shanklin
Victoria Avenue
28/07/2003
6415
2
St Helens
Carpenters Road
14/07/2003
6364
2
Wootton
Briddlesford Road
05/08/2002
6344
2
Apse Heath
Newport Road
08/07/2002
6296
1
Freshwater
Newport Road
14/07/2003
6079
2
Ryde
Great Preston Road
23/09/2002
5974
2
Arreton
Hale Common
17/03/2003
5965
1
Shanklin
Old Village
26/05/2002
5957
2
Arreton
Main Road
11/02/2002
5947
1
Northwood
Nodes Road
02/04/2001
5925
2
Wootton
Lushington Hill
21/05/2001
5796
1
Wootton
Fishbourne Lane
18/08/2003
5725
2
Brading
High Street
27/05/2002
5547
1
Ryde
St Johns Road
19/11/2001
5251
1
Town
Road
Date of Count
Total
No. Flows
Totland
The Broadway
11/06/2001
5162
2
Shanklin
Victoria Avenue
23/09/2002
5102
2
Havenstreet
Main Road
19/08/2002
5099
2
Totland
Colwell Road
25/08/2003
5013
2
Sandown
Perowne Way
24/09/2001
4927
2
Ryde
Pellhurst Road
14/07/2003
4907
2
Sandown
Culver Parade
09/06/2003
4898
2
Yarmouth
Bouldnor Road
13/01/2003
4852
2
Brading
Brading Down Road
18/08/2003
4843
2
Ryde
Stroudwood Road
19/08/2002
4603
2
St Helens
Carpenters Road
04/11/2002
4578
2
Brading
Beaper Shute
08/04/2002
4498
1
Freshwater
Tennyson Road
27/08/2001
4492
1
Ryde
East Hill Road
29/04/2002
4393
1
Bembridge
Embankment Road
03/02/2003
4238
2
Wootton
Park Road
25/06/2001
4233
2
Cowes
Baring Road
22/01/2002
4210
2
Cowes
Mill Hill Road
14/07/2003
4159
2
Havenstreet
Main Road
19/08/2002
3949
2
Freshwater
Military Road
13/08/2001
3938
2
East Cowes
Victoria Grove
30/06/2003
3913
2
Freshwater
The Avenue
13/01/2003
3882
2
Shalfleet
Watchingwell
05/08/2002
3811
1
Ventnor
Albert Street
18/06/2001
3755
1
Ryde
Ashey Road
04/02/2002
3747
2
Cowes
Mill Hill Road
11/06/2001
3594
2
Ryde
St Thomas Street
08/03/2003
3571
2
Newport
Shide Road
29/10/2001
3496
2
East Cowes
York Avenue
12/05/2003
3483
1
Whitwell
Ventnor Road
28/07/2003
3427
2
Ventnor
St Boniface Road
29/07/2002
3346
2
Ryde
High Street
13/05/2002
3309
1
Newport
Clatterford Road
15/10/2001
3283
2
Calbourne
Main Road
15/10/2001
3283
2
Ventnor
Upper Gills Cliff Road
13/08/2001
3274
2
Shanklin
Brook Road
28/04/2003
3270
2
Gurnard
Main Road
09/07/2001
3169
2
Ventnor
Leeson Road
11/02/2002
3064
2
Freshwater
Military Road
03/06/2002
2972
2
Cowes
Rolls Hill
05/08/2002
2954
2
Newchurch
Main Road
08/04/2002
2847
2
Newport
Bowcombe Road
14/07/2003
2758
2
Newport
Crocker Street
19/02/2001
2708
1
Shanklin
Victoria Avenue
25/11/2002
2684
1
Newport
Bowcombe Road
17/02/2003
2668
2
Ryde
Upton Road
11/11/2002
2644
2
Yarmouth
Yarmouth Road
12/03/2001
2597
1
Ryde
High Park Road
18/03/2002
2559
2
Newport
Whitcombe Road
09/11/2002
2524
2
Niton
Chatfield Road
28/07/2003
2485
2
Whitwell
High Street
30/04/2001
2434
2
Niton
Undercliff Drive
28/07/2003
2350
2
Niton
Chatfield Road
05/11/2001
2304
2
Northwood
Pallance Road
28/04/2003
2299
2
Ryde
Warwick Street
22/01/2001
2242
1
Newport
Furrlongs
15/10/2001
2153
2
Rookley
Niton Road
22/01/2001
2134
2
Ryde
Harding Road
28/10/2002
1981
2
Havenstreet
Main Road
23/07/2001
1977
1
Gurnard
Worsley Road
16/12/2002
1915
2
Town
Road
Date of Count
Total
No. Flows
Newport
West Street
12/02/2001
1865
1
Ryde
Well Street
19/11/2001
1727
2
Brading
Coach Lane
31/03/2003
1712
2
Freshwater
Copse Lane
28/04/2003
1686
2
Freshwater
Copse Lane
28/04/2003
1664
2
Cowes
Medina Road
28/04/2003
1656
2
Newport
Sylvan Drive
10/06/2002
1651
2
Brighstone
New Road
09/04/2001
1588
2
Lake
James Avenue
16/09/2002
1579
2
Ryde
Bullen Road
02/04/2001
1561
2
Ventnor
Belgrave Road
17/03/2003
1514
2
Yarmouth
James Street
31/03/2003
1399
1
Brook
Brook Village Road
10/03/2003
1290
2
Ventnor
Grove Road
28/04/2003
1261
2
Gurnard
Solent View Road
20/01/2003
1202
2
Porchfield
Bunts Hill
14/10/2002
1196
2
Chillerton
Main Road
22/04/2002
1185
2
Ryde
Mayfield Road
05/02/2001
1168
2
St Helens
Latimer Road
24/09/2001
1164
2
Gurnard
Church Road
20/01/2003
1126
2
Newport
Watergate Road
21/01/2002
1124
2
Chale
Chale Street
11/11/2002
1098
2
Newchurch
Newchurch Shute
30/04/2001
1041
1
Chillerton
Main Road
22/04/2002
1024
2
Newport
Castle Road
12/03/2001
1012
1
Niton
Undercliff Drive
10/03/2003
985
2
Calbourne
Elm Lane
18/08/2003
974
2
Gurnard
Marsh Road
07/04/2003
923
2
Gurnard
Rew Street
07/04/2003
836
2
Chillerton
Main Road
22/04/2002
754
2
Brighstone
Hunnyhill
12/11/2001
659
2
Whippingham
Alverstone Road
18/08/2003
649
2
Brading
Upper Adgestone Road
20/08/2001
626
2
Ventnor
Dudley Road
23/09/2002
577
1
Newport
Sandy Lane
03/12/2001
574
2
Gurnard
Lower Church Road
09/12/2002
550
2
Shalfleet
Main Road
14/10/2002
536
2
Freshwater
Blackbridge Road
14/01/2002
514
2
Godshill
Southford Lane
11/03/2002
506
2
Newport
Sandy Lane
03/12/2001
499
2
Newport
Alvington Manor View
07/04/2003
435
2
Newport
Church Lane
09/07/2001
369
2
Gurnard
Avenue Road
09/12/2002
368
2
Wootton
Brocks Copse Road
18/02/2002
366
2
Bembridge
Crossway
10/03/2003
320
2
Newport
Elm Grove
03/09/2001
304
1
Porchfield
New Road
15/10/2001
298
2
Ventnor
Gloucester Road
22/07/2002
293
2
Gurnard
Tilbury Road
09/12/2002
284
2
Newport
Bowcombe Business Park
24/02/2003
266
2
Godshill
Lessland Lane
31/03/2003
260
2
Seaview
Oakhill Road
15/01/2001
248
2
Table 3: Additional Traffic Data
Town
Road Name
Flow 2005
Road Type
Thorness
Rolls Hill,
1,866
C
Newport
Fairlee Road,
15,129
A
East Cowes
Whippingham Road,
12,575
A
Town
Road Name
Flow 2005
Road Type
Wootton
Eleanors Grove
15,856
A
Rowborough
Brading Road
9,667
A
Lake
Lake Hill
20,193
A
Apse Heath
Newport Road
15,326
A
Shanklin
Victoria Avenue
6,010
A
Luccombe
Bonchurch Road
5,530
A
Freshwater
Military Road
1,777
A
Totland
Colwell Road
4,439
A
Shalfleet
Yarmouth Road
6,749
A
Newport
Forest Road
9,807
A
Newport
Horsebridge Hill
22,919
A
Newport
Blackwater Road
19,173
A
Newport
Medina Way
30,933
A
Wootton
Briddlesford Road
4,221
C
Godshill
Newport Road
7,951
A
Ashey
Ashey Downs Road
9,285
C
Afton
Newport Road
4,339
B
Bowcombe
Bowcombe Road
2,664
B

Appendix B: Industrial Authorised Processes
Table 4: Industrial Authorised Processes
Operator Name
Authorisation No.
Site Address
Process Type
Innogy PLC
AF7169
Cowes Gt Power Station
Kingston Road
East Cowes
Isle of Wight
PO32 6JF
Combustion Processes
Contract Heat and Power Ltd
AF8092
Forest Park
Forest Road
Newport
Isle of Wight
PO30 5YS
Combustion Processes
GKN Westland Aerospace (Holdings) Ltd
AO0504
Maresfield Works
Maresfield Road
East Cowes
Isle of Wight
PO32 6AF
Inorganic Chemical Processes
Island Waste Services Ltd
ISL012/10203
Bridlesford Road
Downend
Newport
Landfill sites and waste transfer solutions.
Appendix C: Benzene Monitoring Results

The results from 3 months of monitoring in 2005 using BTEX passive diffusion tubes are presented in Table 5. This monitoring was undertaken after a Detailed Assessment predicted that there could be exceedences at some locations on the island.

The locations of the tubes were chosen to be as close as possible to the area shown on the modelling study to have the highest concentrations of benzene, close to the Kingston Petrol Storage Terminal. One tube was therefore placed within the Petrol Terminal compound, close to the road-tanker filling stations and the Vapour Recovery Unit (Site 3, SZ50389459). The other two were placed, one at either end of a building within a secure compound belonging to Transco (Sites 1 & 2, SZ50379450 & SZ50389449).

No exceedences of the Air Quality Objective were measured and the Isle of Wight Council has therefore concluded that no AQMA needs to be declared.

Table 5: Benzene Monitoring Results

Benzene
Toluene
Ethylbenzene
m + p-Xylene
o-Xylene
April





Site 1
0.8
5.7
5.1
9.4
4.3
Site 2
0.7
5.2
2.7
5.0
2.2
Site 3
1.0
9.4
3.3
7.0
3.0
May





Site 1
0.6
5.9
0.6
1.3
0.5
Site 2
0.6
6.4
0.6
1.4
0.5
Site 3
0.8
12.3
1.2
3.3
1.3
June





Site 1
0.7
8.1
0.6
1.4
0.6
Site 2
0.7
7.8
0.8
2.1
0.6
Site 3
1.0
11.2
1.5
4.5
1.7
All results are in μg/m3

Appendix D: Nitrogen Dioxide Diffusion Tube Results

Results of diffusion tube monitoring from 2003, 2004 and 2005 are presented in Tables 6, 7 and 8. Details of the monitoring locations are presented in Figure 1.
Table 6: Nitrogen Dioxide Diffusion Tube Results, 2003
Tube Ref
NO2 /μg/m3
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Average
Bias Corrected Average
IW1
18.6
30.1
16.5
14.6
5.8
10.1
5.7
14.2
13.8
20.0
17.8
19.4
15.5
16.8
IW2
19.1
28.9
24.7

6.7
11.8
5.7
18.5
16.6
19.2
8.5
21.4
16.5
17.8
IW3
21.6
36.0
37.1
33.6
19.6
27.3
24.6
32.7
31.0
27.8
15.6
31.4
28.2
30.4
IW4
34.6
43.7
38.9
38.4
40.6
53.3
48.6
43.2
48.8
39.2
37.0
27.4
41.1
44.4
IW5
17.6
27.7
37.7
31.1
20.5
26.7
19.4
21.8
17.8
27.0
10.7
26.4
23.7
25.6
IW6
15.6
24.8
20.0
20.7
9.4
11.2

15.6

21.5
15.6
20.9
17.5
19.0
IW7
10.0
23.6
17.7
14.0
7.6
7.1
5.7
10.4
5.7
14.5
6.4
14.5
11.4
12.4
IW8
30.1
50.2
48.9
60.4
38.8
50.3
52.1
34.1

37.6
14.2
37.9
41.3
44.6
IW9
14.5
26.0
18.3
21.9
11.6
20.1
16.6
27.0
18.4
18.4
10.6
20.0
18.6
20.1
Table 7: Nitrogen Dioxide Diffusion Tube Results, 2004
Tube Ref
NO2 /μg/m3
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Average
Bias Corrected Average
IW1
12.4
15.4
13.0
14.2
12.8
7.3
7.3
7.3

11.5
14.8
18.2
12.2
13.4
IW2
13.6

16.6
16.9
14.4
8.5
9.2


10.8
16.4

13.3
14.6
IW3
24.8
29.6
24.4
25.2
19.7
18.4
24.8
19.4

24.5

29.3
24.0
26.4
IW4
38.3
40.2
38.2
41.2
44.4
29.5
39.0
0.3

38.3
42.9
42.9
35.9
39.5
IW5
23.0
27.2
19.3
20.1
23.4
21.0
20.2
17.7

20.0
23.8
22.8
21.7
23.8
IW6
15.3
24.8
18.5

15.1
10.1
10.1
7.9

12.2
19.1

14.8
16.3
IW7
12.4
17.2
13.5
13.3
11.6
8.2
7.3
7.2

8.6
12.3
14.5
11.5
12.6
IW8
33.0
48.5
35.6
33.9
48.3
39.6
39.9
39.8


37.8

39.6
43.6
IW9
17.1
25.4
19.6
22.0
22.3
15.0
16.5
16.9

15.0
22.7
20.0
19.3
21.3
Table 8: Nitrogen Dioxide Diffusion Tube Results, 2005
Tube Ref
NO2 / μg/m3
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Av.
Bias Corrected Av.
Seasonal+ Bias Corrected. Av
2010 Forecast Concentration
IW1


16.2













IW2


16.4













IW3

34.9
27.7













IW4
39.3
41.6
39.6

35.1
31.6
39.7
37.6
37.1
42.4
41.5
39.9
38.7
45.6

39.9
IW5
20.9
24.3
26.0













IW6
15.2
20.7
20.4













IW7
10.9
14.2














IW8

45.2
41.5


45.2
39.0

35.7
36.1
40.1

40.4
47.7
48.2
42.2
IW9
17.0
21.5
21.5













Tube IW8 has been seasonally adjusted to tube IW4.
The monitoring results from 2003 and 2004 and 2005 show exceedences at sites IW4 and IW8 in 2003 and 2005 and at IW8 in 2004. The forecast concentrations for 2010 suggest that at IW8 there may still be an exceedence in 2010. The diffusion tubes IW4 and IW8 are situated on lampposts near properties. Therefore concentrations of NO2 at the closest sensitive receptor are lower than the kerbside monitoring sites. Calculation of NO2 dispersion away from the kerb can be calculated by applying the following factors to the NO2 concentration:
Table 9: Dispersion Factors
Distance
Dispersion Factor
2 to 5 m
0.95
5 to 10 m
0.90
10 to 20 m
0.75
IW4 is located 10 metres away from the closest property. Therefore, as a worst case scenario, concentrations of NO2 at the property in 2005 would be
45.6 μg/m3 x 0.90 = 41.0 μg/m3.
This is still an exceedence of the 2005 NO2 objective.
IW8 is located 14 metres away from the closest property. Therefore, concentrations at this property are likely to be:
48.2 μg/m3 x 0.75 = 36.2μg/m3. Therefore, an exceedence of the annual mean NO2 objective is not predicted at the closest property.
Figure 1: Nitrogen Dioxide Diffusion Tube Locations

IOW 01 Carisbrooke High School     NGR SZ 48636 88882
(sited on corner of wall at Science Block)
IoWUSA200603


IOW 02 Cowes High School             NGR SZ 49023 96283
(sited on fence at top of basketball court)

IoWUSA200604



IOW 03 92 Horsebridge Hill Newport NGR 49201 91530
(sited on lamp post outside 92 on footpath)


IoWUSA200605



IOW 04 51 Fairlee Road Newport      NGR SZ 50378 89557
(sited on sign/lamp post outside 51 on footpath)


IoWUSA200606





IOW 05 153 Fairlee Road Newport    NGR SZ 50838 90293
(sited on front of garage at side of house)


IoWUSA200607



IOW 06 Ryde High School               NGR SZ 58499 91916
(sited on lamp post at entrance to car park rear of 78 Pellhurst Road)


IoWUSA200608





IOW 07 Sandown High School         NGR SZ 58960 84503
(sited on wall at corner of Science Block)


IoWUSA200609

IOW 08 Lake Hill Lake                    NGR SZ 59112 83738
(sited on sign post opposite 32 Lake Hill)

IoWUSA200610






IOW 09 Blackwater Junction           NGR SZ 50690 86373
(sited on 40 mph sign below car park from Farm shop towards the hollow)


IoWUSA200611

*NGR = National Grid Reference.
Appendix E: DMRB Assessment of Junctions

A DMRB assessment of nine junctions where the AADT exceeded 10,000, and a receptor is located ten metres from the kerb was carried out where possible, traffic data permitting. The last Updating and Screening assessment stated that no junctions fitting these criteria were met and so the roads used in the previous assessment were not re-assessed.

The input data are presented in Tables 10 and 11, and the results are displayed in Tables 12 and 13. Traffic data were supplied by the Isle of WightCouncil and has been factored using a Total Traffic Central growth factor of 1.69% between 2001 and 2006, and 1.53% between 2006 and 2010. Background concentrations were taken from a 1km by 1km square centred on the grid reference shown (See Table 11). As no HGV data were available, 4 % HGV was assumed throughout as a worst case scenario. A 10 kph traffic speed was assumed for each junction.
Table 10: Input Data for DMRB Assessment
Junction
Road 1
Road 2
AADT 2005
AADT 2010
Type
Distance to
Road Centre 1
Distance to
Road centre 2
Road 1
Road 2
1
Fairlee Rd
Staplers Rd
23363
7516
25245 
8121
A
B
10.3
17.5
2
Staplers Rd
Cross Lane
7516
8037
8121
8648
B
B
14.9
16.1
3
Castle Rd
Carisbrooke Rd
1082
14849
1169
16045
B
B
10.5
8.2
4
Whippingham Rd
Alverstone Rd
16558
694
17892
750
A
B
9.6
15.9
5
Carpenters Rd
Station Rd
6805
8614
7354
9309
B
B
10.1
16.3
6
New Road
High Street
6845
6838
7396
7389
A
A
10.3
14.7
7
Sandown Rd
Newport Rd
10431
18307
11272
10849
A
A
10.3
14.7
8
High Street
Victoria Av.
10431
6634
7389
5642
A
B
4.4
5.1
9
Brading Rd
Carpenters Rd
9540
5471
10308
5912
A
B
12
14
10
Horsebridge Hill
Nodes Rd
22919
5925
24766
6402
A
B
15
20
11
Newport Rd
St Johns Rd
7951
7461
8592
8062
A
B
14
16
12
Newport Rd
Niton Rd
7951
2134
8592
2306
A
B
11
17
Table 11: Background Concentrations
Grid Reference
Junction
2005
2010
NOx
NO2
PM10
NOx
NO2
PM10
450500
89500
1
19.2
16.1
20.5
16.1
12.6
18.9
450500
89500
2
19.2
16.1
20.5
16.1
12.6
18.9
449500
88500
3
15.8
12.3
19.5
13.0
10.2
17.9
451500
93500
4
12.2
9.6
18.2
10.3
8.1
16.8
462500
88500
5
11.5
9.0
18.1
9.9
7.8
16.6
460500
87500
6
11.6
9.1
18.2
10.0
7.8
16.7
458500
83500
7
12.8
10.0
18.3
10.9
8.5
16.9
458500
81500
8
11.8
9.2
18.0
10.1
7.9
16.5
460500
88500
9
11.6
9.1
18.1
10.0
7.8
16.7
448500
93500
10
12.6
9.9
18.6
10.6
8.3
17.2
455500
81500
11
10.2
8.0
17.6
8.9
6.9
16.3
450500
84500
12
10.4
8.1
17.9
8.6
6.8
16.5
Table 12: 2005 DMRB Results
Receptor number
Name
NO2 *
PM10
Road 1
Road 2
Annual mean mg/m3
Annual mean mg/m3
Days >50mg/m3
1
Fairlee Road
Staplers Road
29.1
29.3
25.1
2
Staplers Road
Cross Lane
23.1
24.6
11.5
3
Castle Road
Carisbrooke Road
20.9
24.7
11.6
4
Whippingham Road
Alverstone Road
19.8
24.5
11.2
5
Carpenters Road
Station Road
16.7
22.5
7.1
6
New Road
High Street
17.6
23.2
8.5
7
Sandown Road
Newport Road
24.2
27.9
20.3
8
High Street
Victoria Avenue
20.2
24.8
11.9
9
Brading Road, Rowborough
Carpenters Road
17.7
23.1
8.4
10
Horsebridge Hill, Newport
Nodes Road
21.5
26.0
14.9
11
Newport Road, Godshill
Saint Johns Road
16.2
22.3
6.9
12
Newport Road, Godshill
Niton Road
14.6
21.5
5.4


Table 13: 2010 DMRB Results
Receptor number
Name
NO2 *
PM10
Road 1
Road 2
Annual mean mg/m3
Annual mean mg/m3
Days >50mg/m3
1
Fairlee Road
Staplers Road
22.4
24.0
10.2
2
Staplers Road
Cross Lane
18.0
21.5
5.4
3
Castle Road
Carisbrooke Road
16.7
21.0
4.7
4
Whippingham Road
Alverstone Road
15.6
20.4
3.9
5
Carpenters Road
Station Road
13.7
19.3
2.6
6
New Road
High Street
14.3
19.7
3.0
7
Sandown Road
Newport Road
17.5
21.4
5.3
8
High Street
Victoria Avenue
14.2
19.4
2.7
9
Brading Road, Rowborough
Carpenters Road
14.4
19.7
3.1
10
Horsebridge Hill, Newport
Nodes Road
17.0
21.5
5.5
11
Newport Road, Godshill
Saint Johns Road
13.2
19.2
2.5
12
Newport Road, Godshill
Niton Road
11.7
18.6
1.9

Prepared by: Approved by:
Emily Nicholl Gareth Collins
Environmental Scientist Principal Environmental Scientist



Updating and Screening Assessment 2006
Rev No
Comments
Date



1





Enterprise House, 160 Croydon Road, Beckenham, Kent, BR3 4DE
Telephone: 0870 905 0906 Fax: 020 8663 6723 Website: http://www.fabermaunsell.com

Job No 47694IBEE Reference EN Date Created April 2006

This contains confidential and commercially sensitive information, which shall not be disclosed to third parties.

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