Dioxins in Air - Measurement Results of 2006
Month |
Sampling Date
|
Concentrations |
Central/Western
|
Tsuen Wan
|
January |
09-01-2006 |
0.088 |
-- |
21-01-2006 |
-- |
0.092 |
February |
02-02-2006 |
0.054 |
-- |
March |
04-03-2006 |
-- |
0.086 |
22-03-2006 |
0.135 |
-- |
April |
09-04-2006 |
-- |
0.042 |
27-04-2006 |
0.035 |
-- |
May |
09-05-2006 |
0.035 |
-- |
27-05-2006 |
-- |
0.043 |
June |
08-06-2006 |
-- |
0.036 |
20-06-2006 |
0.036 |
-- |
July |
08-07-2006 |
-- |
0.036 |
26-07-2006 |
0.050 |
-- |
August |
07-08-2006 |
0.036 |
-- |
25-08-2006 |
-- |
0.036 |
September |
06-09-2006 |
-- |
0.036 |
18-09-2006 |
0.070 |
-- |
October |
12-10-2006 |
-- |
0.055 |
24-10-2006 |
0.051 |
-- |
November |
05-11-2006 |
0.045 |
-- |
23-11-2006 |
-- |
0.169 |
December |
05-12-2006 |
-- |
0.097 |
17-12-2006 |
0.082 |
-- |
Annual Average
|
0.060 |
0.066 |
|
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
|