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Summary of Ambient Air Monitoring (Dioxins) from 1999 to 2003
|
| Month |
Concentration (pg I-TEQ/m3) |
| Oct-99 |
0.044 |
| Nov-99 |
0.116 |
| Dec-99 |
0.122 |
| Jan-00 |
0.076 |
| Feb-00 |
0.055 |
| Mar-00 |
0.038 |
| Apr-00 |
0.038 |
| May-00 |
0.038 |
| Jun-00 |
0.036 |
| July-00 |
0.039 |
| Aug-00 |
0.039 |
| Sep-00 |
0.103 |
| Oct-00 |
0.058 |
| Nov-00 |
0.070 |
| Dec-00 |
0.046 |
| Jan-01 |
0.168 |
| Feb-01 |
0.060 |
| Mar-01 |
0.193 |
| Apr-01 |
0.042 |
| May-01 |
0.037 |
| Jun-01 |
0.037 |
| Jul-01 |
0.038 |
| Aug-01 |
0.039 |
| Sep-01 |
0.047 |
| Oct-01 |
0.048 |
| Nov-01 |
0.064 |
| Dec-01 |
0.059 |
| Jan-02 |
0.080 |
| Feb-02 |
0.036 |
| Mar-02 |
0.035 |
| Apr-02 |
0.040 |
|
May-02
|
0.041 |
| Jun-02 |
0.038 |
| Jul-02 |
0.045 |
| Aug-02 |
0.037 |
| Sep-02 |
0.035 |
| Oct-02 |
0.054 |
| Nov-02 |
0.039 |
| Dec-02 |
0.042 |
| Jan-03 |
N/A |
| Feb-03 |
0.073 |
| Mar-03 |
0.067 |
| Apr-03 |
0.101 |
| May-03 |
0.046 |
| Jun-03 |
0.052 |
| July-03 |
0.037 |
| Aug-03 |
0.040 |
| Sept-03 |
0.047 |
| Oct-03 |
0.059 |
| Nov-03 |
0.062 |
| Dec-03 |
0.069 |
|
| Notes: |
| |
| 1. Result was not available in Jan 03 because of sample testing failure. |
| 2. Method of Determination: USEPA Method T09: Method for the Determination of Polychorinated Dibenzo-p-Dioxins (PCDDs) in Ambient Air using High-Resolution Gas Chromatography/High-Resolution Mass Spectrometry (HRGC/HRMS) |
| 3. The Total 2,3,7,8-TCDD Toxicity Equivalence is the product sum of the concentration of all seventeen 2,3,7,8-substituted PCDDs/PCDFs congeners and their respective Toxicity Equivalence Factor (TEF). For those congeners with concentration found below the method detection limit (MDL). half MDL is used for calculation. |
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