|
Tissue
samples were analysed for Total PAHs, Total PCBs, Total
DDT and TBT in an accredited laboratory, ie the laboratory
is accredited for the relevant tests by HOKLAS or an
accreditation scheme which has a mutual recognition
agreement (MRA) with HOKLAS. Identical QA/QC parameters
to those employed for the sediment chemistry testing
were used during the analysis of tissues at the analytical
laboratory.
The
specific analytes to be tested and the required methods
and detection limits are based on the monitoring programme
for East Sha Chau Contaminated Mud Pits and are given
in Table 3.2a.
|
Table
3.2a Toxic Organics Analysed in Biota (Tissue)
|
| Parameter |
Method |
Method
Detection Limit (MDL) |
| Total
PAHs |
US
EPA 8270C |
402
ug kg-1 wet weight |
| Total
PCBs |
US
EPA 8270C |
2
ug kg-1 wet weight |
| Total
DDT1 |
US
EPA 8270C |
0.15
ug kg-1 wet weight |
| TBT2 |
ALS
in-house Accredited Method |
20
ug Sn kg-1 wet weight |
| Moisture
content |
|
0.1% |
Note
1: The actual MDL for Total DDT in the SUSDEV 21 Study
was 0.10 ug kg-1 wet weight.
Note 2: The TBT MDL shown in the table complies with
Government's requirements for the East Sha Chau CMP
IV EM&Aprogramme. The actual TBT MDL used in the
East Sha Chau CMP IV EM&Aprogramme is 0.05 ug Sn
kg-1.
|
|