1 Analytical detection limits (DLanalytical) are based on
Relevant Chemical concentrations in ballast water, [RC]BW.
2 Detection limits suggested are related to critical values of
[RC]BW (CVPNEC or CVDNEL-DMEL) that must not be
exceeded in order to keep PEC/PNEC and RCR (exposure / DNEL or DMEL) below 1.
3 The relative sensitivity, Sr, of analytical methods used to quantify
[RC]BW is calculated per equation 1.
If Sr is above 1 for both CVPNEC and
CVDNEL-DMEL, the analytical method used can be deemed as satisfactory in
first approximation.
4 Nevertheless, the detection limits suggested below are based on a
conservative Sr value ≥ 50, whenever possible. An effort was made to
harmonize DLanalytical value for chemicals belonging to the same family.
Analytical detection limit suggested (DLanalytical, in μg/L)
for Relevant Chemicals listed in the IMO database and relative sensitivity
(Sr) calculated with equation (1)
|
|
|
|
|
| Chemical name
|
DLanalytical
(μg/L)
|
Sr
CVPNEC
|
Sr
CVDNEL-DMEL
|
| Aldehyde
|
|
|
|
| Acetaldehyde
|
1
|
82
|
> 103
|
| Formaldehyde
|
1
|
112
|
> 103
|
| Aldehyde hydrate
|
|
|
|
| Chloral hydrate
|
50
|
72
|
> 103
|
| Haloacetic acid
|
|
|
|
| Bromochloroacetic acid
|
0.2
|
> 103
|
> 103
|
| Dibromoacetic acid
|
0.2
|
> 103
|
202
|
| Dibromochloroacetic acid
|
0.2
|
> 103
|
> 103
|
| Dichloroacetic acid
|
0.2
|
> 103
|
> 103
|
| Dichlorobromoacetic acid
|
0.2
|
> 103
|
> 103
|
| Monobromoacetic acid
|
0.2
|
> 103
|
> 103
|
| Monochloroacetic acid
|
0.2
|
108
|
> 103
|
| Tribromoacetic acid
|
0.2
|
> 103
|
> 103
|
| Trichloroacetic acid
|
0.2
|
> 103
|
> 103
|
| Halopropionic acid
|
|
|
|
| Dalapon
|
5
|
82
|
> 103
|
| Haloacetonitrile
|
|
|
|
| Bromochloroacetonitrile
|
0.02
|
> 103
|
> 103
|
| Dibromoacetonitrile
|
0.02
|
103
|
> 103
|
| Dichloroacetonitrile
|
0.02
|
> 103
|
> 103
|
| Monobromoacetonitrile
|
0.02
|
> 103
|
> 103
|
| Monochloroacetonitrile
|
0.02
|
346
|
> 103
|
| Trichloroacetonitrile
|
0.02
|
> 103
|
178
|
| Haloamine
|
|
|
|
| Monochloramine
|
0.04
|
426
|
73
|
| Halomethane
|
|
|
|
| Dibromochloromethane
|
0.02
|
> 103
|
> 103
|
| Dibromomethane
|
0.02
|
> 103
|
> 103
|
| Dichlorobromomethane
|
0.02
|
> 103
|
82
|
| Dichloromethane
|
0.02
|
> 103
|
> 103
|
| Tetrachloromethane
|
0.02
|
> 103
|
115
|
| Tribromomethane
|
0.02
|
> 103
|
> 103
|
| Trichloromethane
|
0.02
|
> 103
|
> 103
|
| Haloethane
|
|
|
|
| 1,1-Dibromoethane
|
0.1
|
> 103
|
> 103
|
| 1,1-Dichloroethane
|
0.1
|
> 103
|
> 103
|
| 1,2-Dichloroethane
|
0.03
|
> 103
|
33
|
| 1,1,1-Trichloroethane
|
0.1
|
> 103
|
> 103
|
| 1,1,2-Trichloroethane
|
0.1
|
> 103
|
> 103
|
| Haloethene
|
|
|
|
| Trichloroethenea
|
0.001
|
> 103
|
32
|
| Halopropane
|
|
|
|
| 1,2-Dibromo-3-chloropropane
|
0.1
|
> 103
|
99
|
| 1,2-Dichloropropane
|
0.1
|
> 103
|
> 103
|
| 1,2,3-Trichloropropaneb
|
0.00002
|
> 103
|
45
|
| Halonitroalkane
|
|
|
|
| Chloropicrin
|
0.02
|
126
|
330
|
| Halophenol
|
|
|
|
| 2,4,6-Tribromophenol
|
0.5
|
150
|
> 103
|
| Inorganic
|
|
|
|
| Bromate ion
|
0.2
|
> 103
|
167
|
| Sodium hypochloritec,d
|
0.2
|
43
|
NA
|
| Sodium thiosulphate
|
100
|
299
|
> 103
|
|
|
|
|
|
- a Current DLanalytical is 0.005 μg/L, for which Sr
= 6.5
- b Current DLanalytical is 0.0004 μg/L, for which
Sr = 2.3
- c Current DLanalytical by colorimetry is 2 μg/L, for which
Sr = 4.3
- d Current DLanalytical by amperometry is 1.2 μg/L, for which
Sr = 7.1