Remediation of PAHs, NSO-Heterocycles, and Related Aromatic Compounds in Permeable Reactive Barriers Using Activated Carbon - Permeable Reactive Barrier: Sustainable Groundwater Remediation - page 242

TABLE 11.7 (continued)
Maximum Concentrations of Organic Compounds at the Three Contaminated Sites in Lünen, Karlsruhe (Karl.), and Brunn am
Gebirge (Brunn) Obtained from 20-32 Samples from Different Wells, Respectively

Lünen Karlsruhe Brunn Lünen Karlsruhe Brunn

Compound c (max)/ μ g L −1 Compound c ( max)/ μ g L −1

9-Fluorenone 2 <LOD 7 1-Acenaphthenol 8 <LOD 44

Anthrachinone 1 <LOD 8 9-Fluorenol 5 <LOD 6

9(10 h)-Acridinone 24 <LOD 381 2-Hydroxy-9-luorenone 1 <LOD 21

1,8-Naphthalene anhydride 65 <LOD 6 9-Phenanthrole <LOD <LOD <LOD

Hydroquinone <LOD <LOD <LOD 1-Pyrenol 7 <LOD <LOD

Benzanthrone <LOD <LOD <LOD 2-Hydroxyquinoline 300 <LOD <LOD

Nitrobenzene 5 2 <LOD 2-Hydroxybiphenyl <LOD <LOD 12

1-Nitronaphthalene <LOD <LOD <LOD 9-Cyanoanthracene <LOD <LOD 7

5-Nitroacenaphthene <LOD <LOD <LOD 9-Cyanophenanthrene <LOD <LOD <LOD

2-Nitroluorene <LOD <LOD <LOD
Note: <LOD = below detection limit, NA = not analyzed. It has to be noted that for all compounds, at least in one, sample concentrations were
found below detection limit (<LOD). For Karlsruhe, the concentrations for well AB12 in the 2007 ield campaign were found to be in part a
factor of 10 higher for comparable samples and were not used. High blank concentrations of phenol and isomers of cresol prevent a sensitive
analysis, often leading to concentrations <LOD.