Emerging contaminants in groundwater - NERC Open Research ...

OR/11/013
Maximum detected concentrations (ng/L)
10,000
1,000
100
10
1
0
Figure 5.5 Organic micropollutants in drinking water in the Netherlands. Note log scale and plotting
of below detection limit values as 0.5 of the detection limit for MTBE, Bisphenol A, PCB, DDT,
simazine, hormones (from Verliefde et al., 2007)
5.3.4 Somes River, Romania
Samples collected from site downstream of sewage treatment works serving Cluj-Napoca and
Gherla on the Somes River in Romania (Moldovan, 2006) showed a range of pharmaceutical
and industrial organic micropollutants, classed as neutral and moderately acidic (Figure 5.6).
Caffeine was detected at the highest concentrations, but two metabolites of the antiinflammatory
metamizole (4-acetyl aminophenazone and 4-formamyl aminophenazone) were
also prominent. The compounds p-chlorophenyl sulfone and N,N-bis (3,3-dimethyl-2oxetanyl)-3,3-dimethyl-2-oxetanamine
are industrial precursors.
Detected concentrations (ng/L)
10,000
1,000
100
10
1
39
Cluj‐Napoca
Figure 5.6 Organic micropollutants in the Somes River, Romania. Note log scale (from Moldovan,
2006)
Gherla