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Summary of Ambient Air Monitoring (Dioxins) from 2004 to 2007
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| Month |
Concentration (pg I-TEQ/m3) |
| Jan-04 |
0.111 |
| Feb-04 |
0.057 |
| Mar-04 |
0.063 |
| Apr-04 |
0.046 |
| May-04 |
0.038 |
| Jun-04 |
0.037 |
| July-04 |
0.038 |
| Aug-04 |
0.038 |
| Sept-04 |
0.091 |
| Oct-04 |
0.092 |
| Nov-04 |
0.061 |
| Dec-04 |
0.160 |
| Jan-05 |
0.200 |
| Feb-05 |
0.035 |
| Mar-05 |
0.062 |
| Apr-05 |
0.037 |
| May-05 |
0.041 |
| Jun-05 |
0.050 |
| Jul-05 |
0.038 |
| Aug-05 |
0.037 |
| Sep-05 |
0.052 |
| Oct-05 |
0.084 |
| Nov-05 |
0.036 |
| Dec-05 |
0.138 |
| Jan-06 |
0.049 |
| Feb-06 |
0.080 |
| Mar-06 |
0.112 |
| Apr-06 |
0.091 |
| May-06 |
0.038 |
| Jun-06 |
0.037 |
| Jul-06 |
0.038 |
| Aug-06 |
0.073 |
| Sep-06 |
0.050 |
| Oct-06 |
0.050 |
| Nov-06 |
0.080 |
| Dec-06 |
0.068 |
| Jan-07 |
0.088 |
| Feb-07 |
0.048 |
| Mar-07 |
0.072 |
| Apr-07 |
0.054 |
| May-07 |
0.051 |
| Jun-07 |
0.044 |
| Jul-07 |
0.037 |
| Aug-07 |
0.038 |
| Sep-07 |
0.056 |
| Oct-07 |
0.066 |
| Nov-07 |
0.067 |
| Dec-07 |
0.136 |
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Notes:
1. 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)
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| 2. 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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