2016-04-19 P&E Committee - Item 1, Attachment 2 - Air Quality Assessment Report

⚫ worst case CAPCOA “whoosh” emissions adopted to represent slightly higher volatility of
    Australian fuels.

⚫ A factor of 1.20 has been applied to the emission rate to account for E10 fuel sold (20% of E10
    fuel sold compared to other fuel types based on proposed tank volumes and a factor of 1.5 for
    the E10 proportion only).


4.9         Modelling Results
Tables 4.2 and 4.3 presents the predicted maximum concentrations at the subject site. Figures 4.2
and 4.3 present the pollutant concentration contours for odour and benzene (cumulative) in the
modelled area.

Table 4.2: Predicted VOC Results – Maximum Predicted Concentrations at Modelled Sensitive
Receptors

                                Maximum Predicted
                        Concentrations at Modelled                                    Air Quality Goal
   Compound                                                                                                             Averaging Time
                        Sensitive Receptors (g/m3)                                           (g/m3)
                        Source Only                       Cumulative

      Benzene               0.23                                3.1                                10                             Annual

                                54                             79.5                               958                          30 Minutes

      Toluene               10.1                               35.7                             4,100                            24 Hour

                            0.88                               17.1                               410                             Annual

   Ethylbenzene              3.4                                3.4                             8,000                             1 Hour

                             4.1                               47.9                             1,200                            24 Hour
      Xylenes
                            0.35                               27.2                               950                             Annual

    Cyclohexane              2.8                                2.8                            19,000                             1 Hour

      n-Hexane                  75                             75.1                             3,200                             1 Hour

                            0.49                               0.49                                65                          30 Minutes
      Styrene
                           0.0089                            0.0089                               280                             7 days

                                                                                                                             1 Hour, 99.5th
       Odour                 0.7                                0.7                            2.5 OU
                                                                                                                                Percentile




                                                                                                                                           Page 23 of 30
                           Synergy Property Partners Pty Ltd- Air Quality Assessment - Proposed Service Station, 123 Eumundi-Noosa Road, Noosaville
                                                                                                       /Network/Projects/4484/Reporting/4484 Report03.odt