Dioxins in Air - Measurement Results of 2014
Month |
Sampling Date
|
Concentrations |
Central/Western
|
Tsuen Wan
|
January
|
25-01-2014 |
0.032 |
-- |
07-01-2014 |
-- |
0.043 |
February |
12-02-2014 |
0.066 |
-- |
18-02-2014 |
-- |
0.283 |
March |
12-03-2014 |
0.059 |
-- |
24-03-2014 |
-- |
0.031 |
April |
25-04-2014 |
0.031 |
-- |
07-04-2014 |
-- |
0.037 |
May |
07-05-2014 |
0.024 |
-- |
19-05-2014 |
-- |
0.009 |
June |
12-06-2014 |
0.024 |
-- |
18-06-2014 |
-- |
0.009 |
July |
24-07-2014 |
0.010 |
-- |
06-07-2014 |
-- |
0.009 |
August |
05-08-2014 |
0.011 |
-- |
17-08-2014 |
-- |
0.009 |
September |
16-09-2014 |
0.009 |
-- |
22-09-2014 |
-- |
0.070 |
October |
22-10-2014 |
0.061 |
-- |
04-10-2014 |
-- |
0.029 |
November |
03-11-2014 |
0.061 |
-- |
15-11-2014 |
-- |
0.041 |
December |
09-12-2014 |
0.051 |
-- |
15-12-2014 |
-- |
0.070 |
Annual Average
|
0.037
|
0.053 |
|
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
|