Table 1.
PCBs
|
PCDDs
|
PCDFs
|
Total TEQs
|
|||||
---|---|---|---|---|---|---|---|---|
Source | 1998 | 2000 | 1998 | 2000 | 1998 | 2000 | 1998 | 2000 |
HR (RM) | ||||||||
1 | 5 | 18 | 31 | 62 | 13 | 42 | 52 | 121 |
10 | 4 | 14 | 12 | 33 | ||||
17 | 13 | 7 | 35 | 239 | 31 | 175 | 85 | 420 |
37 | 15 | 11 | 16 | 17 | 27 | 11 | 68 | 38 |
43 | 10 | 5 | 4 | 19 | ||||
80 | 10 | 14 | 13 | 37 | ||||
91 | 9 | 7 | 12 | 28 | ||||
MR | 0.30 | 0.4 | 0.19 | 0.96 | ||||
NB | 15 | 671 | 50 | 741 |
All concentrations are given in units of TCDD TEQs: for PCBs, sum of TCDD TEQs of four coplanar PCB congeners (International Union of Pure and Applied Chemistry numbers, 77, 81, 126, and 169); for PCDDs, sum of TCDD TEQs from PCDD congeners; for PCDFs, sum of TCDD TEQs from PCDF congeners; for total TEQs, total TCDD TEQs from PCB, PCDD, and PCDF congeners. These are a subset of the data expressed as wet and dry weight concentrations by Fernandez et al. (2004).