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					                             MARINE VESSEL EQUATOR


ANALYSIS OF AIR QUALITY MONITORING DATA
        ASSOCIATED WITH BULK NICKEL SULFIDE
        SHIP-LOADING ON 9TH TO 10TH MARCH 2010




Revision          Prepared             Reviewed              Approved      Date      Description
                R. Morrison
    1                &                C. Magana             C. Magana   30/04/2010
                M. Tarusello




ESPERANCE PORT SEA & LAND – Marine Vessel (MV) Equator                                             1
*1 truck contains up to 8 kibbles approximately carrying 64 tonnes
                                                            CONTENTS

                                                                                                                              Page No.

1.         INTRODUCTION............................................................................................................... 1
     1.1       Licence Reporting Conditions .................................................................................. 1
     1.2       Location of Monitoring Stations ............................................................................... 3
     1.3       Assessment Criteria................................................................................................... 3

2.         ANALYSIS OF BULK NICKEL SHIP LOADING ............................................................... 5
     2.1       Port Activites .............................................................................................................. 5
     2.2       Meteorological Conditions ........................................................................................ 5
     2.3       Odour and Dust Monitoring....................................................................................... 6
     2.4       TEOM PM10 Monitoring............................................................................................... 7
     2.5       TSP HVAS Data........................................................................................................... 9

3.         CONCLUSIONS.............................................................................................................. 10

4.         REFERENCES................................................................................................................ 11



FIGURES
FIGURE 1                           LOCATION OF TEOM AND HAVS MONITORING SITES 1 - 4
FIGURE 2                           WINDROSE DATA FROM THE LOADING PERIOD
FIGURE 3                           GRAPH OF WIND DIRECTION AND TONNES LOADED
FIGURE 4                           GRAPH OF HOURLY PM10 CONCENTRATIONS AND WIND SPEED


TABLES
TABLE 1                            POLLUTION CONCENTRATION TARGETS
TABLE 2                            DAILY 24 HOUR AVERAGE PM10 RESULTS
TABLE 3                            DAILY TSP AND NICKEL RESULTS


APPENDICES
APPENDIX A                         ODOUR RECORD SHEET
APPENDIX B                         HOURLY AVERAGE PM10 CONCENTRATIONS
APPENDIX C                         MPL LABORATORY CERTIFICATE




ESPERANCE PORT SEA & LAND – Marine Vessel (MV) Equator                                                                                      2
*1 truck contains up to 8 kibbles approximately carrying 64 tonnes
1.              INTRODUCTION

     1.1        Licence Reporting Conditions

                This document reports the air quality monitoring for the loading of the MV Equator
                between 0824 on the 9th and 0450 on the 10th of March 2010 at the Esperance Port.
                This report is required by Condition 15 of the Government of Western Australia
                Department of Environment and Conservation (DEC) Licence L5099/1974/12 (‘the
                licence’) issued to Esperance Ports Sea & Land (EPSL) and dated 6th January 2009.

                Condition 15:

                 “15. The Licensee [EPSL] shall provide to the Director [of the Environmental
                Regulation Division or other office of the DEC], no later than 14 working days after any
                nickel sulphide (sic) concentrate is bulk loaded into a ship, an air quality monitoring
                report providing the following information for the period of the loading operation:

                A description of the meteorological conditions during Nickel Shiploading (sic) including
                a wind rose;

                Data from the air monitoring of TEOM and HVAS samplers at sites 1, 2, 3 and 4,
                conducted in accordance with Conditions 9 and 11 [of the licence], including an
                analysis of that data;

                Odour monitoring undertaken and results of that monitoring;

                The quantity of bulk nickel sulphide (sic) concentrate loaded;

                A summary of the monitoring results conducted in accordance with Conditions 9 and
                11 [of the licence] comparing them to the relevant licence limits and targets or relevant
                guideline levels; and

                Any actions taken as a result of the monitoring undertaken.”

                DEC (2009)

                Condition 9a:

                “9(a). The Licensee [EPSL] shall conduct a monitoring program which measures the
                parameters stated in Column 4 of Table 3 [of the licence] at locations specified in
                Column 1 of Table 3 [in the licence], at the sampling period durations listed in Column
                2 of Table 3 [in the licence] and the frequencies listed in Column 3 of Table 3 [in the
                licence] using the corresponding methods listed in Column 5 of Table 3 [in the
                licence].”




     ESPERANCE PORT SEA & LAND – Marine Vessel (MV) Equator                                            1
     *1 truck contains up to 8 kibbles approximately carrying 64 tonnes
            Table 3 [of the licence] – Additional Monitoring Information [adapted]

       Column 1              Column 2               Column 3           Column 4                 Column 5

                              Sampling
      Monitoring
                               Period              Frequency           Parameter                  Method
      Locations
                              Duration

    TEOM1 samplers
    at Site 1, Site 2,
    Site 3 and Site 4




                                                                                                                         Row 2
                                24 hrs                 Daily          PM10 (µg/m3)       AS/NZS 3580.9.8:2001
      (as shown in
    Attachment 3 [in
      the licence])

                                                 Daily during the
    HVAS2 samplers                               period October
    at Site 1, Site 2,                               to March
    Site 3 and Site 4




                                                                                                                         Row 3
                                24 hrs                                TSP (µg/m3)        AS/NZS 3580.9.3:2001
     (as shown in                                Every third day
    Attachment 3 [in                                during the
      the licence])                               period April to
                                                    September


                                                                                                                (DEC 2009)
Condition 9b:
“9(b). [EPSL] shall submit all monitoring samples to a laboratory with current NATA
accreditation for the specified parameters for analysis.”
                                                                                                                (DEC 2009)

            MPL Laboratories has been contracted to undertake these analyses. MPL
            Laboratories’ NATA accreditation number is 2220 (NATA 2009).
            Condition 11:
            “11. The Licensee [EPSL] shall whenever Nickel Shiploading (sic) is occurring, monitor
            every day in accordance with the monitoring conducted in Row 3 of Table 3 of
            Condition 9(a) [of the licence] and have filter papers collected from the HVAS and
            analysed for iron, nickel, lead and sulphur (sic).




_______________________________
1
  Tapered Element Oscillating Microbalance (TEOM) measuring particulate matter with an equivalent aerodynamic diameter of ten
microns or less (PM10).
2
  High Volume Air Sampler (HVAS) measuring total suspended particulates (TSP).




ESPERANCE PORT SEA & LAND – Marine Vessel (MV) Equator                                                                           2
*1 truck contains up to 8 kibbles approximately carrying 64 tonnes
1.2        Location of Monitoring Stations


           As required by the licence, ambient monitoring is being undertaken at four locations
           surrounding the Port operations (Figure 1). The monitor locations were chosen in
           consultation with the DEC and the Government of Western Australia Department of
           Health (DoH).

           For a detailed explanation, please refer to the EPSL website:

           http://www.esperanceport.com.au/envmon.asp

           Note that Site 5 (Figure 1), measuring TSP, is not required to be reported under the
           licence, but has been included in this report for completeness.

           The EPSL has an Australia Standards-compliant meteorological station adjacent to E-
           Sampler 7, located on the Port premises adjacent to Berth 3. This meteorological
           station records both wind speed and direction. Data from this station has been used for
           this report.


1.3        Assessment Criteria
           The following ambient concentration targets are used in this assessment, as adapted
           from Table 2 in the licence:


           Table 1 Pollution concentration targets from Table 2 in Licence L5099/1974/12
                    Parameter                                                Target
                    Nickel in air                                          0.14 µg/m3
                   Dust as PM10                                             50 µg/m3
                   Dust as TSP                                              90 µg/m3




ESPERANCE PORT SEA & LAND – Marine Vessel (MV) Equator                                          3
*1 truck contains up to 8 kibbles approximately carrying 64 tonnes
      Figure 1 Location of TEOM/HVAS monitoring sites 1 to 4, HVAS monitoring site 5, and meteorological
      station adjacent to E-Sampler 7




ESPERANCE PORT SEA & LAND – Marine Vessel (MV) Equator                                                     4
*1 truck contains up to 8 kibbles approximately carrying 64 tonnes
2.         ANALYSIS OF BULK NICKEL SHIP LOADING

2.1        Port Activites
                                                             th
           The MV Equator berthed on the 9 of March 2010 at 0824 but did not commence
           loading BHP Billiton Nickel West bulk nickel sulphide concentrate until 1015 on the 9th
                                              th
           of March 2010 to 0450 on the 10 of March 2010. Approximately 8 832 tonnes of
           nickel sulphide concentrate bulk was loaded during this period.

           The ‘monitoring period’ in this report will refer to 0824 on the 9/04/2010 to 0450 on
           the 10/04/2010. The ‘loading period’ in this report will refer to 1015 on the 9/04/2010 to
           0050 on the 10/04/2010.

           There were no other marine vessels in Port during the monitoring period

           Products received/delivered other than by marine vessels, were:

           •     9 324 tonnes of iron ore unloaded from 1 train

           •     109 tonnes of nickel concentrate unloaded from 2 truck *



2.2        Meteorological Conditions

           Wind speed and direction during the loading period were measured by the Australian
           Standards compliant meteorological station adjacent to E-Sampler 7, located on the
           Port premises adjacent to Berth 3 (Figure 1).

           •     During the loading period the wind direction ranged between southerly and south
                 westerly winds (62% SW, 26% SSW, 4% WSW and 8% S) (Figure 2).
           •     The maximum hourly wind speed recorded from the SSW direction during the
                 loading period was 6.6m/s (23.8km/h), which occurred between 2100 and 2200 on
                 the 9/04/2010.
           •     The average wind speed for the loading periods was 4.9m/s (17.68km/h). The
                 ‘Beaufort Wind Force Scale’ is a measure for understanding wind speeds in
                 descriptive terminology. A wind speed of 4.9 m/s is described as ‘Light’ winds
                 (BOM 2010).
           •    The wind arc zones in which EPSL may or may not load bulk nickel sulphide
                concentrate (green and red respectively) are illustrated in Figure 2 and are
                documented within EPSL’s internal procedures. These conditions are in place in
                order to minimise nickel particulate emitted from the Port. The effectiveness of
                these procedures has been demonstrated in the absence of any exceedences
                since implementation of the wind arc procedure in December 2008.




ESPERANCE PORT SEA & LAND – Marine Vessel (MV) Equator                                             5
*1 truck contains up to 8 kibbles approximately carrying 64 tonnes
      Figure 2 Wind arc zones defined in EPSL (2008), where ‘red zone’ is 45º to 180 º and ‘green zone’ is 180 º to
      45º, showing loading wind rose data measured at the meteorological station adjacent to E-Sampler 7 from
      1015 9/04/2010 to 0050 on 10/04/2010.

2.3        Odour and Dust Monitoring

           Pre- loading determination of the Nickel West concentrate was undertaken as per the
           requirement of EPSL “Environmental Considerations for Nickel Ship-loading
           Procedure’ (PR088) (EsPA 2009). It was determined that the Nickel West concentrate
           was classified as a weak odour, and low dust, and was therefore loaded as per Section
           3.1 of the procedure (EsPA 2009). The odour and moisture content record sheet is
           included in Appendix A.




ESPERANCE PORT SEA & LAND – Marine Vessel (MV) Equator                                                                6
*1 truck contains up to 8 kibbles approximately carrying 64 tonnes
2.4        TEOM PM10 Monitoring
           The hourly PM10 concentrations at the four TEOMs reached a maximum of 36.07µg/m3
           (Site 4), wind direction 257° at 0800 prior to load ing at 1015; and dropped off to a
           maximum of 20.53µg/m3 (Site 2), wind direction 233° during loading ( Figure 4). No
           nickel loading occurred while the wind was in the red zone (Figure 3). Therefore, the
           recorded PM10 concentrations are considered to be from sources other than nickel
           loading operations. There is no correlation between wind speed and dust during the
           loading period (refer to Appendix B for raw data).

           Figure 3 shows Port throughput (tonnes/hour) and wind direction plotted against the
           date. Figure 4 plots hourly PM10 concentration (µg/m3) and wind speed (m/s) plotted
           against the date.

           The 24-hour average PM10 concentrations for the monitoring period are presented in
           Table 2 as calculated at 1200 hours each date to coincide with the approximate time
           when TSP filter papers are changed. The 24-hour average licence target concentration
                       3
           of 50µg/m was not exceeded at any of the sites. The maximum daily average PM10
           concentration of 15.6µg/m3 was recorded at Site 2 between 1200 on the 9th March
                                       th
           2010 and 1200 on the 10 March 2010 and represents 31% of the assessment
           criterion (50µg/m3).

           As a further restriction to minimise ship-loading emissions, EPSL has to maintain less
           than 1000 tonnes per hour (tph) nominal ship-loading rate as part of its protocol.
           During the loading of the MV Equator there was an occurrence where the loading rate
           was 1015 tph over 45 minutes due to fluctuations in the system from variations in the
           density of the product (Figure 3). This occurrence has identified a need to clarify that
           due to mechanical and operational considerations there is a plus or minus variation in
           the loading rates that can not be avoided.




ESPERANCE PORT SEA & LAND – Marine Vessel (MV) Equator                                           7
*1 truck contains up to 8 kibbles approximately carrying 64 tonnes
                                                                                    Tonnes Loaded (t/hr)     Wind Direction (degrees)


                                                   1200                                                                                              360




                                                                                                                                                     270




                                                                                                                                                                     Wind Direction (degrees)
    Tonnes Loaded (t/hr)




                                                                800



                                                                                                                                                     180



                                                                400

                                                                                                                                                     90




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                                                                                               Date and Time (WST)


                     Figure 3 Wind direction and tonnes loaded to MV Equator between 0800 on the 9/04/2010 to 0500 on the
                     10/04/2010.

                                                                           Site 1           Site 2         Site 3        Site 4         Wind Speed

                                                                      40                                                                             10
                      PM10 Ground Level Concentratons (ug/m3)




                                                                      30                                                                             8

                                                                                                                                                           Wind Speed (m/s)



                                                                      20                                                                             5




                                                                      10                                                                             3




                                                                      0                                                                              0
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                                                                                               Date and Time (WST)

                     Figure 4 Hourly PM10 concentrations and wind speed between 0800 on the 9/04/2010 to 0500 on the
                     10/04/2010

ESPERANCE PORT SEA & LAND – Marine Vessel (MV) Equator                                                                                                                                          8
*1 truck contains up to 8 kibbles approximately carrying 64 tonnes
        Table 2 Daily 24-hour average TEOM monitoring results for PM10 between the 8th and 10th of March 2010
                                                                         Site 1      Site 2            Site 3              Site 4
           Sampling Start               Sampling Finish                         3            3                 3                      3
                                                                       (µg/m )      (µg/m )            (µg/m )             (µg/m )

           1200 8/04/2010      1200 9/04/2010                            10.5         11.1              9.5                    8.4
           1200 9/04/2010     1200 10/04/2010                            13.0         15.6              14.7                   13.1
                                        3
              Assessment Criterion (µg/m )                                                        50

    2.5        TSP HVAS Data
               The results from the laboratory analysis of the TSP filter papers are presented in Table
               3 and the laboratory reports are provided in Appendix C. There were no exceedences
                              3
               of the 90µg/m 24-hour average concentration target for TSP during the monitoring
               period. The maximum recorded daily average TSP concentration of 33µg/m3 recorded
                                                    th                                    th
               at Site 2 between 1200 on the 9 April 2010 and 1200 on the 10 April 2010
                                                                      3)
               represents 37% of the assessment criterion (90µg/m ). The source of TSP recorded
               is unlikely to be the Port given the direction of the wind is mainly blowing from the
               south west. Daily wind rose show the wind direction was predominantly south westerly
               (62% SW, 26% SSW, 4% WSW and 8% S).

                                                                                                                           3
               The 24-hour average licence target nickel concentration of 0.14µg/m was not
               exceeded during the monitoring period. The highest 24-hour average nickel
                                                                                3
               concentration recorded during the monitoring period was 0.003µg/m recorded at Site
                                           th                               th
               2 between 1200 on the 09 April 2010 and 1200 on the 10 April 2010. A nickel
                                          3
               concentration of 0.003µg/m represents approximately 2% of the assessment criterion
                         3
               (0.14µg/m ).


    Table 3 Daily HVAS monitoring results for TSP and nickel between the 9th and 11th of April 2010
                                                                                                                                       Site 5
                                             Site 1 (µg/m3)      Site 2 (µg/m3)     Site 3 (µg/m3)      Site 4 (µg/m3)                      3
                 1                      1                                                                                             (µg/m ))
Sampling Start       Sampling Finish
                                                                                    TS
                                             TSP        Ni       TSP         Ni                  Ni     TSP          Ni         TSP            Ni
                                                                                    P

1200 09/04/2010      1200 10/04/2010          25     <0.002       33       0.003    23    <0.002        18         <0.002        27       <0.002

1200 10/04/2010      1200 11/04/2010          16     <0.002       19       <0.002   17    <0.002        13         <0.002        18       <0.002

                                   3
  Assessment Criterion (µg/m )                90       0.14       90        0.14    90       0.14       90          0.14         90        0.14
    1
     These times are approximate for all five monitoring sites.
    Bold - exceedence of the 90µg/m3 24-hour average concentration target for TSP
    0.002 µg/m3 is the limit of detection for the analysis of nickel.




    ESPERANCE PORT SEA & LAND – Marine Vessel (MV) Equator                                                                                 9
    *1 truck contains up to 8 kibbles approximately carrying 64 tonnes
3.         CONCLUSIONS
           Analysis of the data required by Condition 15 of the licence during loading of the MV
           Equator has been undertaken. As per EPSL operational procedures, ship-loading only
           occurred when the wind was blowing from within the green zone as defined in EsPA
           (2009). Therefore, the potential for dust and odour impacts on the town of Esperance
           was significantly reduced by these procedures.

           No odour complaints were reported to EPSL during this period. This is consistent with
           the ‘low odour potential’ product odour assessment result. It is noted that there have
           been no odour complaints reported to EPSL since December 2008 because of Bulk
           Nickel ship loading.

           The licence target concentrations for PM10, TSP and nickel were not exceeded at any
           of the four monitoring sites during the berthing or loading periods of MV Equator.

           The highest 24-hour nickel concentration recorded was 0.003 µg/m3 which is 2% of the
                                          3
           assessment criterion (0.14 µg/m ).

           These results warranted no further emission reduction measures.




ESPERANCE PORT SEA & LAND – Marine Vessel (MV) Equator                                           10
*1 truck contains up to 8 kibbles approximately carrying 64 tonnes
4.         REFERENCES

           Bureau of Meteorology (BOM), 2009. Beaufort Wind Scale. Access online 6 March
           2010, http://www.bom.gov.au/lam/glossary/beaufort.shtml

           DEC 2009, Licence for prescribed premises, licence number L5099/1074/12, Western
           Australian Department of Environment and Conservation, Australia, Accessed online
           10 March 2010,
           http://www.esperanceport.com.au/downloads/env/DEC%20License_3%20months.pdf

           Esperance Port Authority 2009, PR088: Environmental conditions for nickel ship
           loading, document number PR088, issued May 2009, Esperance Port Authority.

           NATA 2009, Facilities and labs: MP Laboratories a division of Coffey Environments Pty
           Ltd, Accessed online 10 March 2010, MPL laboratory’s Website under construction,
           http://www.envirolabservices.com.au/

           ENV, 2010, Marine Vessel Fonthinda Naree – Analysis of Air Quality Monitoring Data
           Associated with Bulk Nickel Sulfide Ship-Loading on 31 January and 3 February 2010
           09 220-AQM-011 Final V3.

           Standards Australia 2008, Methods for sampling and analysis of ambient air, method
           9.8: determination of suspended particulate matter – PM10 continuous direct mass
           method using a tapered element oscillating microbalance analyser, AS 3580.9.8-2008,
           Accessed               online              6            February              2009,
           http://www.saiglobal.com/online/autologin.asp?br=true&userid=7439352104.




ESPERANCE PORT SEA & LAND – Marine Vessel (MV) Equator                                        11
*1 truck contains up to 8 kibbles approximately carrying 64 tonnes
                                             APPENDIX A
                         ODOUR RECORD SHEET




ESPERANCE PORT SEA & LAND – Marine Vessel (MV) Equator               12
*1 truck contains up to 8 kibbles approximately carrying 64 tonnes
                                        APPENDIX B
                  HOURLY AVERAGE PM10
                    CONCENTRATIONS
                           Hourly Average PM10 in µg/m3                                             Hourly
                                                                                       Hourly
                                                                   Hourly Averaged                 Averaged
                                                                                      Averaged
Date and Time                                                       Wind Speed                      Product
                  Site 1        Site 2      Site 3        Site 4                     Wind Vector
                                                                        (m/s)                       Loaded
                                                                                         (º)
                                                                                                   (tonnes)
9/04/2010 8:00    25.17         33.28       32.91         36.07         3.84           257.16         0
9/04/2010 9:00    12.01         17.36       17.21         18.32         4.59           243.83         0
9/04/2010 10:00   11.26         14.00       12.35         7.91          4.12           227.24        535
9/04/2010 11:00   8.12           9.66       13.34         7.77          4.33           225.38       1015
9/04/2010 12:00   9.35          12.44       11.85         6.75          4.83           223.68        870
9/04/2010 13:00   11.99         13.89       15.98         9.70          5.36           224.72        790
9/04/2010 14:00   13.43         16.00       13.12         11.34         5.24           215.56        756
9/04/2010 15:00   12.16         13.10       10.78         7.57          5.26           220.62        422
9/04/2010 16:00   11.99         14.91       9.11          9.09          4.28           221.77        452
9/04/2010 17:00   15.53         18.86       15.85         9.97          3.52           229.05        778
9/04/2010 18:00   18.09         20.53       20.47         16.67         3.56           233.01        483
9/04/2010 19:00   16.39         18.86       14.47         7.98          4.39           226.19        705
9/04/2010 20:00   12.40         13.44       9.75          10.18         4.96           214.16         0
9/04/2010 21:00   10.51         11.16       10.28         9.00          6.60           202.56        918
9/04/2010 22:00   10.03         11.08       10.32         10.90         5.81           183.16        488
9/04/2010 23:00   11.36         11.82       13.43         14.95         6.26           194.46        363
10/04/2010 0:00   14.24         15.52       13.05         14.89         5.15           200.25        339
10/04/2010 1:00   16.10         16.77       15.30         17.10         5.41           204.71         0
10/04/2010 2:00   17.66         20.96       14.87         15.47         5.04           214.14         0
10/04/2010 3:00   18.51         20.59       19.50         21.95         5.29           198.66         0
10/04/2010 4:00   18.48         21.62       21.76         24.34         5.07           195.12         0
       APPENDIX C
MPL LABORATORY CERTIFICATES

				
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