Dioxins in Air - Measurement Results of 2018
Month |
Sampling Date
|
Concentrations |
Central/Western
|
Tsuen Wan
|
January |
20-01-2018 |
0.051 |
-- |
20-01-2018 |
-- |
0.049 |
February |
07-02-2018 |
0.086 |
-- |
13-02-2018 |
-- |
0.069 |
March |
09-03-2018 |
0.020 |
-- |
21-03-2018 |
-- |
0.049 |
April |
20-04-2018 |
0.019 |
-- |
08-04-2018 |
-- |
0.044 |
May |
08-05-2018 |
0.013 |
-- |
26-05-2018 |
-- |
0.009 |
June |
25-06-2018 |
0.009 |
-- |
25-06-2018 |
-- |
0.008 |
July |
25-07-2018 |
0.009 |
-- |
13-07-2018 |
-- |
0.009 |
August |
06-08-2018 |
0.009 |
-- |
24-08-2018 |
-- |
0.031 |
September |
05-09-2018 |
0.011 |
-- |
17-09-2018 |
-- |
0.008 |
October |
23-10-2018 |
0.024 |
-- |
11-10-2018 |
-- |
0.043 |
November |
10-11-2018 |
0.011 |
-- |
22-11-2018 |
-- |
0.031 |
December |
04-12-2018 |
0.009 |
-- |
04-12-2018 |
-- |
0.015 |
Annual Average
|
0.023 |
0.030 |
|
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
|