Dioxins in Air - Measurement Results of 2013
Month |
Sampling Date
|
Concentrations |
Central/Western
|
Tsuen Wan
|
January |
20-01-2013 |
0.070 |
-- |
02-01-2013 |
-- |
0.098 |
February |
01-02-2013 |
0.029 |
-- |
19-02-2013 |
-- |
0.041 |
March |
21-03-2013 |
0.071 |
-- |
21-03-2013 |
-- |
0.047 |
April |
02-04-2013 |
0.026 |
-- |
02-04-2013 |
-- |
0.018 |
May |
02-05-2013 |
0.020 |
-- |
02-05-2013 |
-- |
0.024 |
June |
19-06-2013 |
0.011 |
-- |
19-06-2013 |
-- |
0.010 |
July |
07-07-2013 |
0.008 |
-- |
07-07-2013 |
-- |
0.008 |
August |
06-08-2013 |
0.010 |
-- |
18-08-2013 |
-- |
0.009 |
September |
11-09-2013 |
0.025 |
-- |
17-09-2013 |
-- |
0.026 |
October |
05-10-2013 |
0.046 |
-- |
05-10-2013 |
-- |
0.054 |
November |
04-11-2013 |
0.063 |
-- |
16-11-2013 |
-- |
0.080 |
December |
10-12-2013 |
0.182 |
-- |
16-12-2013 |
-- |
0.059 |
Annual Average
|
0.047
|
0.040 |
|
NOTE :
-
Figures are 24-hour average concentrations on the day of sampling in pg I-TEQ /m3.
-
The concentration of dioxins is expressed as toxic equivalent (I-TEQ) concentration of 2,3,7,8 - Tetrachlorodibenzodioxin (TCDD) based on the International Toxic Equivalent Factors (I-TEF) of the North Atlantic Treaty Organization (NATO/CCMS)
-
For congener concentrations that are lower than the estimated minimum sample detectable level (EMSDL), one half of the EMSDL is used in calculating the I-TEQ concentration
|