Table 2.
Mean OPAH Concentrations from NIST SRMs with Standard Deviation | ||||||
---|---|---|---|---|---|---|
SRM no. Matrix n Units | 2977 Mussel tissue 5 μg/kg (SD) | 1944 Sediment (Sch 3) 2 mg/kg (SD) | 1944 Sediment (Sch 4) 3 mg/kg (SD) | 1649b Urban dust 3 mg/kg (SD) | 1975 Diesel extract 3 mg/kg (SD) | 1650b Diesel particulate matter 5 mg/kg (SD) |
9-FLUO | 22.6 (4.9) | 0.653 (0.05) | 0.65 (0.03) | 0.78 (0.04) | 2.69 (0.08) | 24.9 (7.3) |
CP[def ]PHEO | BDL | 0.366 (0.05) | 1.14 (0.03) | 0.62 (0.03) | 7.74 (0.29) | 6.9 (4.1) |
9,10-ANTQ | 180.8 (35.5) | 1.70 (0.43) | 1.53 (0.15) | 1.60 (0.11) | 5.23 (0.16) | 47.7 (19.9) |
1,4-ANTQ | BDL | BDL | BDL | BDL | BDL | BDL |
BEZO | 21.8 (0.1) | 0.144 (0.25) | 1.28 (0.12) | 4.46 (0.50) | 4.39 (0.34) | 36.9 (8.6) |
BFLOU | 46.5 (9.9) | 1.27 (0.01) | 1.17 (0.02) | 1.65 (0.09) | 3.43 (0.25) | 15.9 (4.8) |
B[cd ]PYRO | BDL | BDL | BDL | 2.42 (0.71) | 1.87 (0.32) | 9.2 (2.5) |
7,12-Bn AQ | BDL | BDL | BDL | 2.20 (0.15) | 0.79 (0.03) | BDL |
5,12-NAPQ | 31.9 (7.6) | 0.613 (0.01) | 0.68 (0.01) | 3.16 (0.13) | 7.22 (0.35) | 9.0 (1.7) |
BDL = below detection limits, SD = standard deviation, Sch = scheme Values are reported on a dry weight basis and recovered from replicates of 1-2 g mussel tissue, 0.8 g sediment (comparison of clean up Schemes 3 and 4), 150 mg urban dust, 50 (il of diesel extract and 10 mg diesel particulate matter using pressurized solvent extraction, size exclusion chromotography and/or solid phase extraction clean-up with gas chromotography-electron impact-mass spectrometry.