Olympic Park Dust and PM10 Monthly
Monitoring Report

November 2008



Document History

DOCUMENT REF: REP-ATK-PM-ZZZ-ZZZ-ZZZ-E-
0109

1
Final for Issue to
S Arjunagi
E Yerushalmi
G M Bollan
RI Collinson
16/02/09
CLM/EHOs
0
Draft for review
S Arjunagi
E Yerushalmi
G M Bollan
RI Collinson
07/01/09
Revision
Purpose
Description Originated  Checked Reviewed
Authorised Date

November 2008

Appendices
Appendix A - Locations of Monitoring Sites

Appendix B - Sticky Pad Analysis Results Graphs

Appendix C - Examination of in-week Soiling Events

Appendix D - Trends of Sticky Pad Analysis

Appendix E - Background Information on the Parameters Covered

Appendix F – Atkins QA/QC Process

Appendix G - Dawlish Road Site November Windrose

Appendix H - Hourly November Data

3

November 2008

Executive Summary
This report describes the results from the PM10 and deposited dust monitoring regime in and around the
Olympic Park site for the calendar month of November 2008.
November monitoring results confirm that short and long term statutory criteria are currently (or are likely to
be) met at all off-site locations most representative of public exposure.
During November, there was only one exceedance of the 24-hour mean value of 50 µg/m3 on the 4th of
November at Gainsborough School. The exceedance was linked to a regional event caused by Guy Fawkes
Night fireworks. There were no 24-hour mean exceedances of 50 µg/m3 at any of the other analysers.
Exceedances of the 15-minute PM10 site action limit were recorded during two days as one-off incidents at
CZ4 Soil Wash and as a single one-off incident at CZ8c. The breaches observed at CZ4 Soil Wash and
CZ8c appeared to be linked to activities at the Olympic Park.
The number of 24-hour mean exceedances at the CZ4 Soil Wash was already exceeding the statutory
maximum allowable of 35 per year, but it should be noted that the sampling point is on-site, located close to
a haul road and at some distance from any points of relevant exposure such as residential properties. As
such, the site represents an over-estimate of the exposure of the nearest receptors.
Soiling in excess of 5% coverage was recorded in a single offsite location, Dust_24, which has also in the
past recorded soiling levels over 5%. The bearing of soiling and predominant wind direction indicated an
offsite source not related to Olympic Park activities.
November monitoring results confirm an overall reduction in exceedances as well as rates of dust deposition,
suggesting that dust abatement measures continue to have the desired effect though wet conditions will be
contributing.

4

link to page 6 November 2008

1. Introduction
1.1
As part of the monthly reporting requirement, Atkins has prepared the November 2008 summary
report for dust and PM10 data collected by the Tier 1 contractors (Morrison Construction Limited -
MCL and BAM Nuttall Limited - BNL) and their consultants at the Olympic Park site. The report is
in accordance with section 5.5, Reporting Requirements, of the Olympic Park Dust Monitoring
Scheme (REP-ATK-TE-ZZZ-XXX-ZZZ-E-0002).
1.2
The report presents the November PM10 and dust results. Appendix E of the report includes
background information to the parameters covered, their guidelines, criteria, monitoring coverage
and techniques used.
1.3
Data from eight Osiris locations monitoring real-time PM10 during November are presented and
discussed in this report. Data from a total of 20 Fablon Sticky Pad monitoring sites located off-site
are also presented and discussed. Further results from on-site locations are presented in
Appendix B. The dust and PM10 monitoring sites selected, their descriptions, operators
(BNL/MCL), locations and data coverage are presented in Appendix A. All of these locations can
be found on the site map in Section 2.

5

November 2008

2. Monitoring
locations

6

link to page 7 link to page 7 November 2008

3.  Results and Discussion
Meteorology
3.1
The CZ4 Soil Wash meteorological station is co-located with the Osiris analyser installed at that
position and has been providing meteorological data since April. Due to temporary issues with the
data download software, data capture was only 70% during November. In order to present a full
month’s worth of representative data, a rose from the nearby London Air Monitoring Station at
Dawlish Road is presented.
3.2
The Dawlish Road wind rose for November is illustrated in Figure 3.1.

Figure 3.1 – November 2008 Windrose for London Air Network Dawlish Road Site
Meteorological Station
0°
337.5°
150
22.5°
315°
120
45°
90
292.5°
67.5°
60
30
270°
90°
247.5°
112.5°
225°
135°
202.5°
157.5°
180°
0
3
6
10
16
(knots)
Wind speed
0
1.5 3.1 5.1 8.2
(m/s)

3.3
The on-site windrose in Appendix G shows a different wind direction to that observed at Dawlish
Road, with slightly more prevalent north-westerly winds recorded at the Dawlish Road site during
November during the on-site analyser’s downtime.
3.4
The Met Office1 UK overview for the month of November 2008 is as follows:

1 http://www.metoffice.gov.uk/climate/uk/2008/november.html

7

November 2008

Mean temperatures were above average for England. The provisional mean value for the
month is 6.80C which is 0.70C above the 1961-190 average. The provisional rainfall total is
81.1 mm, which is 99% of the 1961-1990 average. It was mostly mild at first, but turning
much colder later with sharp frost. Rainfall and sunshine close to average.

8

link to page 10 November 2008

PM10 Results
3.5
Data from the eight Osiris analysers are presented, compared to PM10 criteria and discussed in
this section. Data from each site are presented on two to three pages consisting of:
1)  An in-month site discussion;
2)  A summary table of the monthly and annual (or period) means and the number of 24 hour
exceedances of 50 µg/m3 compared with local networked analysers. It should be noted that
there are no monthly criteria for PM10 and that these are only presented for comparison with
previous months and other sites;
3)  A figure presenting both the 24 hourly mean and 15 minute exceedances throughout the
month;
4)  A table of the 15-minute mean exceedances condition at the time and action taken if any; and
5)  A table of the daily mean exceedances summary for the site if any.
All Osiris data are highlighted with italics if below 75% capture.
3.6
The sites presented are:
•
Gainsborough School located 100 metres from the Olympic Park CZ5c boundary, and
approximately 500 metres from the soil washing facilities operated by MCL;
•
West Greenway located outside the Olympic Park opposite CZ3 located 40 metres from new
relevant receptors, operated by BNL;
•
Quartermile Lane in CZ7a but also located next to a site with relevant exposure (Traveller
site), operated by MCL;
•
Carpenters Road in CZ1, located 60 metres west of the nearest relevant receptor, operated
by BNL;
•
CZ4 Soil Wash near the soil washing facilities, located 60 metres north-east from the nearest
relevant receptor, operated by BNL;
•
Metronet off-site location for short-term boundary monitoring, located within 10 metres from
the nearest receptor;
•
CZ8a short-term boundary monitoring, was initially located 40 metres from the nearest
receptor, but moved off-site on the 17th of November and is now ten metres from the nearest
receptor; and
•
CZ8C short-term boundary monitoring, located 80 metres from the nearest receptor.
3.7
Table 3.1 summarises the main 24 hour mean exceedances at each site in November. The table
includes the London Network sites Ruckholt Close, Dawlish Close and Cam Road for comparison.
These data are contemporary and subject to later ratification.
3.8
It should be noted that high ambient PM10 concentrations are commonly expected in early
November due to firework activity.  This generally caused higher concentrations measured by the
on-site analysers but the general increase in local background concentrations at the London Air
monitoring sites can be seen at this time.
3.9
Data from the MetOne Beta Attenuation Meter located at the Quartermile Lane monitoring station
is being collected but not yet being used to apply a correction factor to any site Osiris data. A
number of issues are awaiting resolution including:
•
The collection of a suitable large data set to determine long term performance
differences between the two types of analyser

9

November 2008

•
An investigation into the suitability of applying a correction factor from one analyser
across the whole Olympic Park monitoring regime
•
Confirmation that the BAM is performing to manufacturer's specifications (due in
January 2009)
•
An adjustment of the Quartermile Lane Osiris' position to ensure that no systematic
errors are being introduced as a result of the two analyser's spatial separation (due
in January 2009).
Table 3.1 – PM10 Concentrations November Summary Table
Site Name
Operator
Location
November
November
Comment
Mean
Exceedances
Gainsborough
MCL
30m West from CZ5c
24.7
1
Daily exceedances on the
School, Hackney
4th of November - (in
November the highest

levels of PM10 across the

London Air Quality Network

were recorded between 4th

and 6th).
Likely to have been a
regional event caused by
Guy Fawkes Night
fireworks.
Further possible
contribution of PM10 was the
demolition of the plinth of
the Gainsborough School
footbridge. Manned jet
washing was operating to
minimise the emissions of
dust during the demolition
activities.
Greenway,
BNL
Outside boundary of
18.8
0 n/a
Newham
CZ3a/ 3b
Quartermile
MCL
Within CZ 7a
20.9
0
n/a
Lane, Hackney
next to Travellers’ Site
On-site, Newham
BNL
Within CZ 1a
20.0
0
n/a
(Carpenters
Road South)
On-site , Tower
BNL
Boundary of CZ4
22.6
0
n/a
Hamlets (CZ4
Soil Wash)
Metronet,
Hyder
Offsite 100m East
22.5
0
n/a
Waltham Forest
from CZ7a
Site 8a, Waltham
Hyder
Within CZ 8a
13.3
0
n/a
Forest
Site 8c, Waltham
Hyder
Within CZ 8c
16.7
0
n/a
Forest
Ruckholt Close
Waltham
Offsite 90m North
14.8
0
n/a
Forest
from CZ7a
Dawlish Road
Waltham
Offsite >1km North
14.1 0
n/a
Forest
from CZ7a

10

November 2008

Cam Road
Newham
Offsite 370m East
16.7
0
n/a
from CZ1a, 1b and 8c
Italics – indicates < 75% data capture

Gainsborough School. Hackney
3.10
The Gainsborough School November data included a single exceedance of the daily mean on
Tuesday 4th November and no breaches of the 15 minute action level, discussed in Table 2.3.
3.11
The site had been collecting data since the 6th of July 2007, albeit with a break for maintenance. It
is the longest running analyser at the Olympic Site with a robust annual mean directly comparable
to the Air Quality Objectives.
3.12
Gainsborough School results show that the annual mean concentration is not exceeding the
annual mean objective of 40 µg/m3 and is comparable to the local networked analysers.
Gainsborough School has completed over a year of monitoring, and the annual mean refers to a
rolling 12 monthly average. With 81% coverage, and with an annual mean of 28 µg/m3, the
annual mean was below the objective during the last year of monitoring.

Table 3.2– Gainsborough School PM10 Concentrations –
November and Rolling Annual Mean Results (365 days; 01/12/07 – 30/11/08)
Site Name
Operator
November   Mean
Annual
(Exceedances)
Mean *
(Exceedances ** )
Gainsborough Road
MCL
24.7 (1)
27.8 (21)
Ruckholt Close
Waltham
14.8 (0)
19.6 (6)
Forest
Cam Road
Newham
16.7 (0)
24.8 (8)
Dawlish Close
Waltham
14.1 (0)
19.9 (3)
Forest
*Annual Mean Objective of 40 µg/m3
** Objective is less than 35 exceedances of a 24 hour mean of 50 µg/m3 per year

11

November 2008

Figure 3.2 - Gainsborough School 15-minute mean and daily mean PM10 Concentrations – November (μg/m3)
300
250
) 200
3
/
m
g
(µ
n
o
ti 150
a
tr
n
e
nc
o
C 100
50
0
8
8
8
8
8
8
8
8
008
08
008
008
008
08
008
08
008
08
008
08
008
08
008
08
/2
/2008 /20
/2
/2008 /200 1/2
/2
/200
/20
1/2
/2008 /200 1/20
/2
/200
/20
1/2
/2008 /200 1/20
/2
/200
/20
1/2
/2008 /200 1/20
/2008 /200
/11
/11
/11
/11
/11
/11
/1
/11
/11
/1
/11
/11
/1
/11
/11
/1
/11
/1
/11
/11
/1
/11
/1
/11
01
02
03
04
05
06
07
08
09/11 10
11
12
13
14
15
16/11 17
18
19/11 20
21
22
23/11 24
25
26/11 27
28
29
30/11
Date
15min
Threshold for 15-minute mean
Daily mean
Threshold for daily mean

12

November 2008

Table 3.3 - Gainsborough School Daily Mean Exceedances* – November
Date
Day
No. of
Annual No.
Daily
Daily
Daily
Daily
Daily
Possible Source
Mitigation
exceedances
of Daily
Mean
Wind
Wind
Rainfall
Temperature
at Olympic
(October)
exceedances
(μg/m3)
Direction
Speed
Park
(Rolling 365
(mm/hour)
(Celsius)
(m/sec)
days)
04 - Nov
Tuesday
1
21
64.6
NE
0.6 0.0
10.6 Activities at CZ5c included the
Demolition
(analyser
demolition of the plinth of the
activities of
is
Gainsborough School footbridge.
bridge had
downwind
manned jet

of CZ5c)
washing
Concentrations >50 µg/m3 from
operating to
00:00 00:45 AM, 04:15 AM –
minimise the
07:15 AM the following day.
emissions of

dust during
Other sites had highest levels of
the
PM10 on the same day. Likely to
demolition
have been a regional event
activities.
caused by Guy Fawkes fireworks.
Total 1 21

* Air Quality Strategy Objective is less than 35 exceedances of a 24 hour mean of 50 µg/m3 per year

13

November 2008

Greenway, Newham
3.13
The Greenway November data includes no exceedances of the 15-minute action limit and no
exceedances of the daily mean. Relatively low concentrations have been consistently observed at
this off-site location.  It remains of interest following the commissioning of new properties adjacent
to the Greenway to the south west of the monitoring position.
3.14
The Greenway analysers began collecting data on the 1st of November 2007, albeit with a month
break due to a power cut and during site repositioning on the 10th of July 2008. The new location
was 40 metres east of its original position, and for annual mean purposes has been considered
the same site. A full year set of data is therefore available and results are now directly
comparable to Air Quality Objectives.
3.15
The Greenway analyser has completed over a year of monitoring, and the annual mean refers to a
rolling 12 monthly average. With 75% coverage and with an annual mean concentration of 22
µg/m3, the annual mean was well below the objective during the last year of monitoring.
Table 3.4 - Greenway PM10 Concentrations –
October and Rolling Annual Mean Results (365 days; 01/12/07 – 30/11/08)
Site Name
Operator
November   Mean
Annual
(Exceedances)
Mean *
(Exceedances ** )
Greenway
BNL
18.8 (0)
21.6 (5)
Ruckholt Close
Waltham
14.8 (0)
19.6 (6)
Forest
Cam Road
Newham
16.7 (0)
24.8 (8)
Dawlish Close
Waltham
14.1 (0)
19.9 (3)
Forest
*Annual Mean Objective of 40 µg/m3
** Objective is less than 35 exceedances of a 24 hour mean of 50 µg/m3 per year
Daily PM10 (local background = Cam Road & Dawlish Rd)
150
Greenway
Local Urban Background
100
Site Relocated
50
0
08
08
08
08
08
08
08
08
08
08
08
08
08
08
08
08
08
08
08
08
08
08
08
08
01/
01/
01/
02/
02/
03/
03/
04/
04/
05/
05/
06/
06/
07/
07/
07/
08/
08/
09/
09/
10/
10/
11/
11/
01/
15/
29/
12/
26/
11/
25/
08/
22/
06/
20/
03/
17/
01/
15/
29/
12/
26/
09/
23/
07/
21/
04/
18/

14

November 2008

Figure 3.3 - Greenway 15-minute mean and daily mean PM10 Concentrations – November (μg/m3)
300
Six hour data gap – 20/11/08; 11:00 – 16:30;
1.5 day data gap – from the 29/11/08 at 22:00
Analyser was calibrated.
due to blown fuse on lamp post, Fuse
250
replaced on Thursday afternoon (04/12/08).
) 200
3
Five day data gap – from the
/
m
g
21/11/08 at 4:30 – 26/11/08 at
(µ
9:00 due to a blown fuse on the
n
light post resulting in power failure.
t
i
o 150
a
tr
n
e
nc
o
C 100
50
0
8
8
8
8
8
008
08
08
008
008
008
008
08
008
/2008 /2008 1/2
/2008 /2008 1/20
/2008 /2008 /20
/2
/2008 /200
/2
/2008 /200 1/2
/2008 /200 1/2
/2008 /2008 /20
/2008 /2008 /200
/2008 /2008 /200
/2
/2008
/11
/1
/11
/1
/11
/11
/11
/11
/11
/11
/11
/1
/11
/1
/11
/11
/11
/11
/11
/11
/11
/11
/11
01
02/11 03
04
05/11 06
07
08
09
10
11
12/11 13
14
15/11 16
17
18/11 19
20
21/11 22
23
24/11 25
26
27
28
29
30
Date
15min
Threshold for 15-minute mean
Daily mean
Threshold for daily mean

15

November 2008

Quartermile Lane, Hackney
3.16
The Quartermile Lane November data included no exceedances of the 15-minute action limit and
no exceedances of the daily mean.
3.17
The Quartermile Lane analysers began collecting data on the 14th of March 2008 when the
travellers’ site was relocated. The site, although located within the Olympic Park, is representative
of sensitive receptors (the Travellers’ site) and is therefore of relevance when compared to the
AQS Objectives. A full year’s data is not available yet, and whilst results are therefore not yet
directly comparable to Air Quality Objectives, they provide an indication of likelihood of
compliance.
3.18
The long-term mean concentration and number of daily exceedances at Quartermile Lane are well
below their objective during the period of operation and concentrations at this location are likely to
meet the annual mean objectives, if conditions remain similar.

Table 3.5 - Quartermile Lane PM10 Concentrations –
November and Rolling Annual Mean Results (262 days; 14/03/08 – 30/11/08)
Site Name
Operator
November   Mean
Period
(Exceedances)
Mean (Mar 08 - Nov 08) *
(Exceedances ** )
Quartermile Lane
MCL
20.9 (0)
27.9 (16)
Ruckholt Close
Waltham
14.8 (0)
18.1 (1)
Forest
Cam Road
Newham
16.7 (0)
23.5 (1)
Dawlish Close
Waltham
14.1 (0)
18.8 (0)
Forest
*Annual Mean Objective of 40 µg/m3
** Objective is less than 35 exceedances of a 24 hour mean of 50 µg/m3 per year

November 2008

Figure 3.4 - Quartermile Lane, Hackney 15-minute mean and daily mean PM10 Concentrations – November (μg/m3)
300
250
) 200
3
/
m
g
(µ
n
o
ti 150
a
tr
n
e
nc
o
C 100
50
0
8
8
8
8
8
8
8
8
008
08
008
008
008
08
008
08
008
08
008
08
008
08
008
08
/2
/2008 /20
/2
/2008 /200 1/2
/2
/200
/20
1/2
/2008 /200 1/20
/2
/200
/20
1/2
/2008 /200 1/20
/2
/200
/20
1/2
/2008 /200 1/20
/2008 /200
/11
/11
/11
/11
/11
/11
/1
/11
/11
/1
/11
/11
/1
/11
/11
/1
/11
/1
/11
/11
/1
/11
/1
/11
01
02
03
04
05
06
07
08
09/11 10
11
12
13
14
15
16/11 17
18
19/11 20
21
22
23/11 24
25
26/11 27
28
29
30/11
Date
15min
Threshold for 15-minute mean
Daily mean
Threshold for daily mean

17

November 2008

Carpenters Road South (on-site, Newham)
3.19
The Carpenters Road South (PM10_09) site began collecting data on the 23rd of September at
CZ1a, near the boundary and about 50 metres east from the previous location of the analyser
(PM10_03). The new location is expected to be more representative of off-site residential
receptors, and so far has been observed to have lower concentrations as it is nearer to the
boundary. This section presents the period mean and exceedances of the new location only.
3.20
The Carpenters Road South November data included no exceedances of the 15-minute action
limit and no exceedances of the daily mean.
3.21
A full year of data is not available yet, and whilst results are therefore not yet directly comparable
to Air Quality Objectives, they provide an indication of likelihood of compliance.  Mean
concentration and daily exceedances at Carpenters Road South are well below their objective
during the period of operation and concentrations at this location are likely to meet the annual
mean objectives if the remain the same.

Table 3.6 - Carpenters Road South PM10 Concentrations –
November and Rolling Period Mean Results (69 days; 23/09/08 – 30/11/08)
Site Name
Operator
November Mean
Period
(Exceedances)
Mean (Sep 08 – Nov 08) *
(Exceedances ** )
Carpenters Road
BNL
20.0 (0)
24.4 (1)
South
Ruckholt Close
Waltham
14.8 (0)
14.8 (0)
Forest
Cam Road
Newham
16.7 (0)
20.7 (0)
Dawlish Close
Waltham
14.1 (0)
15.3 (0)
Forest
*Annual Mean Objective of 40 µg/m3
** Objective is less than 35 exceedances of a 24 hour mean of 50 µg/m3 per year

250
Carpenters
Local Urban Background
200
On site: 200m W of
On site: 150m W of
Boundary: 80m W
nearest receptor
nearest receptor
of nearest receptor
150
Site Relocated
Site Relocated
100
50
0
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
/20
01
01
01
02
02
03
03
04
04
05
05
06
06
07
07
07
08
08
09
09
10
10
11
11
01/
15/
29/
12/
26/
11/
25/
08/
22/
06/
20/
03/
17/
01/
15/
29/
12/
26/
09/
23/
07/
21/
04/
18/

18

November 2008

Figure 3.5 - Carpenters Road 15-minute mean and daily mean PM10 Concentrations – November (μg/m3)
300
250
Six hour data gap – 20/11/08;
11:00 – 16:30; Analyser was
calibrated
) 200
3
/
m
g
(µ
n
o
ti 150
a
tr
n
e
nc
o
C 100
50
0
8
8
8
8
8
8
8
8
008
08
008
008
008
08
008
08
008
08
008
08
008
08
008
08
/2
/2008 /20
/2
/2008 /200 1/2
/2
/200
/20
1/2
/2008 /200 1/20
/2
/200
/20
1/2
/2008 /200 1/20
/2
/200
/20
1/2
/2008 /200 1/20
/2008 /200
/11
/11
/11
/11
/11
/11
/1
/11
/11
/1
/11
/11
/1
/11
/11
/1
/11
/1
/11
/11
/1
/11
/1
/11
01
02
03
04
05
06
07
08
09/11 10
11
12
13
14
15
16/11 17
18
19/11 20
21
22
23/11 24
25
26/11 27
28
29
30/11
Date
15min
Threshold for 15-minute mean
Daily mean
Threshold for daily mean

19

November 2008

CZ4 Soil Wash (On-site ,Tower Hamlets)
3.22
The CZ4 Soil Wash November data had two breaches of the 15-minute action limit; on Friday the
7th and Wednesday the 12th. Wind direction was predominantly west southwesterly during that
period, and with no exceptional on-site activity, the source is difficult to determine. Activities at
CZ4 included ongoing soil washing, earthwork and remediation.
3.23
The site has been collecting data since the 11th of January 2008, hence a full year set of data is
not yet available. Whilst results are therefore not yet directly comparable to Air Quality Objectives,
they provide an indication of likelihood of compliance.
3.24
The period mean concentration is likely to meet the annual mean objective as it is currently below
the objective and is generally reducing with better mitigation in place and wetter conditions.
However, the number of daily exceedances has already exceeded the objective of 35 days. It
should also be noted that the analyser is located on site, close to the main haul road through the
site, and is not representative of relevant receptors to which the Objectives apply.

Table 3.7 - CZ4 Soil Wash PM10 Concentrations –
November and Rolling Period Mean Results (325 days; 11/01/08 – 30/11/08)
Site Name
Operator
November Mean
Period
(Exceedances)
Mean (Jan 08 – Nov 08) *
(Exceedances ** )
CZ4 Soil Wash
BNL
22.6 (0)
33.6 (39)
Ruckholt Close
Waltham
14.8 (0)
19.3 (5)
Forest
Cam Road
Newham
16.7 (0)
24.7 (6)
Dawlish Close
Waltham
14.1 (0)
19.8 (2)
Forest
*Annual Mean Objective of 40 µg/m3
** Objective is less than 35 exceedances of a 24 hour mean of 50 µg/m3 per year

20

November 2008

Figure 3.6 - CZ4 Soil Wash 15-minute mean and daily mean PM10 Concentrations – November (μg/m3)
300
250
3 day data gap -
) 200
1 day data gap – 20/11/08; 04:30 – 18:30;
3
01/11/08 00:00 -
Power failure and analyser calibration.
/
m
g
03/11/08 12:45;
(µ
due to power failure
n
t
i
o 150
a
tr
n
e
nc
o
C 100
50
0
8
8
8
8
8
8
8
8
008
08
008
08
008
08
008
08
008
08
008
08
008
008
08
/2
/2008 /20
1/2
/2008 /200 1/20
/2
/200
/20
1/2
/2008 /200 1/20
/2
/200
/20
1/2
/2008 /200
/20
/2
/200
/200 1/2
/2008 /200
/20
/2008 /2008
/11
/11
/11
/1
/11
/11
/1
/11
/11
/1
/11
/11
/1
/11
/11
/1
/11
/11
/11
/11
/11
/1
/11
/11
/11
01
02
03
04
05
06
07
08
09/11 10
11
12
13
14
15
16/11 17
18
19
20
21
22
23/11 24
25
26
27/11 28
29
30/11
Date
15min
Threshold for 15-minute mean
Daily mean
Threshold for daily mean

21

November 2008

Table 3.8 - CZ4 Soil Wash 15-minute Site Action Limit* Breaches – November
Date
Day
Time
No. of
Maximum
Wind
Wind
Rainfall
Temperature
Possible Source
Mitigation at
breaches
Exceedance
Direction
Speed
(mm/hour)
(Celsius)
Olympic Park
(μg/m3)
(15-min)
(m/sec)
(15-min)
(15-min)
(15-min)
(15-min)
07-Nov Friday

0830 –
1 400.0
W
2.3 0  10.9 Use of diesel powered tools to
n/a – one-off
0845
(analyser
remove vegetation and erect a new
incident.
is upwind
fence in close proximity to the Osiris
of Olympic
monitor
Park)
12-Nov Wed
1215 –
1 287.5
W
2.6 0  11.0
Investigations showed a borehole
n/a – one-off
1230
(analyser
being installed in close proximity to
incident.
is upwind
Osiris monitor.
of Olympic
Park)
Total

2

* London Best Practice Guidance for the Control of Dust and Emissions from Construction and Demolition (2006) recommends a minimum site action limit of 250 μg/m3 over a 15
minute average

22

November 2008


Boundary Monitoring – Metronet, Waltham Forest
3.25 Additional
PM10 monitoring commenced in August recording PM10 at additional boundary or off-
site locations. They included locations in CZ8a, in CZ8c and an external location called Metronet,
east of CZ6.
3.26
The external Metronet analyser is part of the Boundary Monitoring.  It is located on Metronet land
behind residential properties along Westdown Road, adjacent to the North London line.
3.27
Monitoring at the Metronet site commenced on the 8th of October.  Elevated levels were recorded
in the initial data set and further analysis suggested performance issues with the analyser
impacting the data set recorded over the first week of sampling. The data should, as a precaution,
be considered robust only from the 15th of October.
3.28
The Metronet November data included no exceedances of the 15-minute action limit and no
exceedances of the daily mean objective.
Table 3.9–Boundary Monitoring Metronet PM10 Concentrations –
    November and Rolling Period Mean Results (47 days; 15/10/08 – 30/11/08)
Site Name
Operator
November   Mean
Period
(Exceedances)
Mean
(Oct 08 – Nov 08)*
(Exceedances ** )
Metronet Hyder
22.5 (0)
24.6 (0)
Ruckholt Close
Waltham
14.8 (0)
12.6 (0)
Forest
Cam Road
Newham
16.7 (0)
20.8 (0)
Dawlish Close
Waltham
14.1 (0)
14.2 (3)
Forest
*Annual Mean Objective of 40 µg/m3
** Objective is less than 35 exceedances of a 24 hour mean of 50 µg/m3 per year
Italics – indicates < 75% data capture


23

November 2008

Figure 3.7 - Metronet 15-minute mean and daily mean PM10 Concentrations – November (μg/m3)
300
250
6.5 day data gap from 07/11/08 00:00 to
)
13/11/08 13:45 due to recurrent power failures
200
3
and analyser performance issues
m
g/
µ
n (
t
i
o 150
r
a
nt
e
7.5 day data gap from 21/11/08 00:00 to
28/11/08 13:00 due to recurrent power
onc
C 100
failures and analyser performance issues.
50
0
08
08
8
08
8
08
8
08
/20
/2008 /2008 /2008 /20
/200
/2008 /2008 /2008 /20
/2008 /2008 /2008
2008 /2008 /200
/2008 /2008 /2008 /20
/2008 /200
/2008
/2008 /20
/2008 /2008 /2008
11
11
11
11
11
11/2008/11
11
11
11
11
11
11
11
11/
11
/11
11
11
11
11
11
/11
11
11/200811
11
11
11
11
01/
02/
03/
04/
05/
06/
07
08/
09/
10/
11/
12/
13/
14/
15/
16/
17
18/
19/
20/
21/
22/
23
24/
25/
26/
27/
28/
29/
30/
Date
15min
Threshold for 15-minute mean
Daily mean
Threshold for daily mean

24

November 2008

Boundary Monitoring – CZ8a (Marshgate Lane)
3.29
The monitor was located on the Bow Back River boundary wall, south east of CZ8a and ha been
collecting data since the 13th of August 2008. The analyser was removed at the beginning of
November due to works affecting the hoarding to which it was attached.
3.30
The analyser was relocated off-site at the nearest dwelling to the Olympic Park boundary on the
17th of November. The site has been renamed “Marsghate Lane”. A number of performance
issues affected the analyser and recording only started on the 28th. Results will hence be included
in future reports.

25

November 2008

Boundary Monitoring – CZ8c
3.31
The monitor is located on wall of substation at entrance to CZ8c along Bridgwater Road. The site
had been collecting data since the 19th of August 2008. A full year set of data is not available yet.
Whilst results are therefore not yet directly comparable to Air Quality Objectives, they provide an
indication of likelihood of compliance.
3.32
The CZ8c data included one exceedance of the 15-minute action limit, and no exceedances of the
daily mean.

Table 3.10–Boundary Monitoring – Site 8c PM10 Concentrations
November and Rolling Period Mean Results (104 days; 19/08/08 – 30/11/08)
Site Name
Operator
November   Mean
Period
(Exceedances)
Mean
(Aug 08 – Nov 08) *
(Exceedances ** )
Site 8c
Hyder
16.7 (0)
27.0 (4)
Ruckholt Close
Waltham
14.8 (0)
16.4 (0)
Forest
Cam Road
Newham
16.7 (0)
21.3 (0)
Dawlish Close
Waltham
14.1 (0)
16.2 (0)
Forest
*Annual Mean Objective of 40 µg/m3
** Objective is less than 35 exceedances of a 24 hour mean of 50 µg/m3 per year

26

November 2008

Figure 3.8 – Site 8c 15-minute mean and daily mean PM10 Concentrations – November (μg/m3)
300
250
) 200
3
/
m
g
(µ
n
t
i
o 150
a
tr
n
e
nc
o
C 100
50
0
8
8
8
8
8
8
8
8
008
08
008
08
008
08
008
08
008
08
008
08
008
008
08
/2
/2008 /20
1/2
/2008 /200 1/20
/2
/200
/20
1/2
/2008 /200 1/20
/2
/200
/20
1/2
/2008 /200
/20
/2
/200
/200 1/2
/2008 /200
/20
/2008 /2008
/11
/11
/11
/1
/11
/11
/1
/11
/11
/1
/11
/11
/1
/11
/11
/1
/11
/11
/11
/11
/11
/1
/11
/11
/11
01
02
03
04
05
06
07
08
09/11 10
11
12
13
14
15
16/11 17
18
19
20
21
22
23/11 24
25
26
27/11 28
29
30/11
Date
15min
Threshold for 15-minute mean
Daily mean
Threshold for daily mean

27

November 2008

Table 3.11 – Site 8c 15-minute Site Action Limit* Breaches – November
Date
Day
Time
No. of
Maximum
Wind
Wind
Rainfall
Temperature
Possible Source
Mitigation at
breaches
Exceedance
Direction
Speed
(mm/hour)
(Celsius)
Olympic
(μg/m3)
(15-min)
(m/sec)
(15-min)
(15-min)
Park
(15-min)
(15-min)
10-Nov Monday

1200 –
1 573.0
W
2.0 0.8 12.1 CZ8c activities included Pylon
n/a – one-off
1215
(analyser
Removals LA1880 & LA1900 and
incident.
is
ongoing earthworks.
No specific
downwind
However, no visible dust recorded
mitigation
of Olympic
during site visit. It is therefore
measures
Park)
possible that this reading is an
recorded at
artefact.
this time
owing to
transience of
episode and
likely artefact
status.
Total

1

* London Best Practice Guidance for the Control of Dust and Emissions from Construction and Demolition (2006) recommends a minimum site action limit of 250 μg/m3 over a 15
minute average

28

November 2008

Dust Results
3.33
This section discusses results of monitoring at off-site and boundary locations. The dust data are
collected weekly over a period of four weeks to include all of November. A full treatment is given in
Appendix C. Only locations which exceeded the 5% relative soiling (Effective Area Coverage)
criterion are discussed.
3.34
Site Dust 24, located east of Construction Zone 8c and 30 metres from the nearest residential
receptor,, has recorded, along with Dust 22 generally high level of soiling, exceeding the 5%
threshold every month for over six months. Dust 22 did not exceed the 5% threshold during
November; however, Dust 24 continued to do so. The site is located generally downwind from
CZ8a and CZ8b; however, it is more likely to be affected by sources not related to the Olympic
Park activities such as the earth works at Stratford City development over the railway line,
Murphy’s tunnelling works, works at Stratford Station and construction of apartments on Warton
Road and Stratford High Street. The development at Warton Road is closer to the monitoring
location and may actually be acting as a screen against emissions from CZ8c. In addition, stock
piles were treated with Dustbuster (a proprietary polymer coating system for surfaces and
stockpiles) to minimise dust blow from the south-west, roads around the site are being damped
down by bowser on a regular basis and additional wheel-wash facilities were installed to reduce
as far as possible material leaving the site on vehicle wheels.
3.35
Bearing assessments and likely sources of dust are further discussed in Appendix C. A five
month trend graph for Dust 24 can be seen in Appendix D.  Previous Dust 24 data included only
maximum and minimum readings from a possible eight bearings and is therefore not directly
comparable with the last five months’ data which included soiling on all four bearings.
3.36
The “traffic light” matrix in Appendix D provides an in-month snapshot of relative soiling at each
location. The higher number of decreases observed in the maximum concentration is consistent
with the number of green entries, indicating a decrease in soiling, as it is appears slightly more
often throughout the matrix than the red colour. Arguably the overall trend observed is that of a
slight decrease in soiling.

29

November 2008

4. Conclusions

4.1 Near-site
PM10 data were available for periods of between one month to one year. Monitoring
commenced at Gainsborough School in July 2007, and has therefore collected over a year’s worth
of data. West Greenway commenced in November 2007 and therefore also now has a year’s
worth of data. Data from both sites show compliance with both the annual mean and the number
of daily exceedances permitted. Other sites have yet to complete a full year of monitoring and are
therefore not directly comparable with long-term Air Quality Objectives, which are applied on an
annual basis. The CZ4 Soil Wash site has seen a gradual decrease in PM10 concentration, and
annual mean is now likely to meet the annual mean PM10 criterion if results are considered pro
rata and concentrations over a twelve month period remain similar to the past couple of months.
The Quartermile Lane, Carpenters South, and the three boundary “health monitoring” sites appear
more likely to meet this annual mean PM10 criterion.
4.2
Early November air quality was influenced by seasonal PM10 episodes from fireworks.
4.3
Data from off-site analysers indicates that both the short term and long term objectives are met or
are likely to be met once they complete a full year’s worth of data. Data from both Gainsborough
School and t Greenway show compliance the annual objectives.
4.4
Data from on-site analysers strongly suggests that maximum permitted number of 35
exceedances of the 24 hour mean concentration for PM10 criterion may not be met at one or more
of the sites. The number of daily exceedances permitted in a year had already been exceeded at
the CZ4 Soil Wash on-site location with 39 exceedances so far.
4.5
Boundary Monitoring at CZ8a and CZ8c has barely three months worth of data, but if considered
pro rata the number of days above 50 µg/m3 permitted is likely to be exceeded at CZ8a, and
possibly CZ8c as well. The Carpenters Road site’s previous location has also exceeded the daily
exceedances permitted, but has since been relocated closer to the boundary, and although
remaining an on-site analyser, has recorded reduced concentrations.   Finally, the Quartermile
Lane analyser also located on-site but close to receptors is recording concentrations below the
annual objectives and is expected to meet them once it completes a full year’s worth of data.
4.6
Greenway and Metronet recorded no 24-hour exceedances during November, although
Gainsborough School had a one 24-hour exceedance in November compared to two in October.
The exceedance at Gainsborough School was likely to have resulted from a regional event not
related to the Olympic Park construction activities. All of the on-site analysers, Carpenters Road
South, Quartermile Lane, Site 8a, 8c and CZ4 Soil Wash did not record any 24-hour exceedances
during November.
4.7
The site action limit of 250 µg/m3 was exceeded at CZ4 Soil Wash on two separate days; Friday
morning on the 7th of November and Wednesday noon on the 12th of November.  Both one-off
breaches are unlikely to have been as a result from major Olympic Park activities due to opposite
wind direction and no reported visible dust on-site. Furthermore, the nearby Fablon pads
(Dust_13 and Dust_15) were both below the 5% threshold in November. This indicates to a more
localised source of fine particles. Investigations suggest that the one-off breach on the 7th was
linked to the use of fuel powered tools to remove vegetation and erect a new fence, and the one-
off breach on the 12th was associated with a bore well being installed nearby.
4.8
A one-off breach of the 15 minute site action level was also found at one Boundary Monitoring
site; Site 8c recorded a one-off breach during Wednesday noon on the 10th of November, in
contrast with last month’s 36 breaches. No visible dust observations were made during the
breach, hence it was not possible to ascertain the exact source.

30

November 2008

4.9 The
PM10 data at the Olympic Park Osiris sites appear to generally follow the trends of the local
analyser. Results have improved suggesting that dust abatement measures are having the
desired effect.
4.10
Soiling rates exceeded the >5% EAC criterion for at least one week in at least one direction at one
off-site location; Dust 24. A reduction in soiling was observed in comparison to the previous
month of October. The wind direction in month as recorded on-site was predominantly west
south-westerly. The site which exceeded the >5% EAC criterion had predominant soiling on the
north bearing of the Fablon sheets indicating to sources not related to the Olympic Park; most
likely construction of apartments on Warton Road and Stratford High Street.

31

Document Outline

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