Phthalates and Nonylphenols in Roskilde Fjord

More documents

Recommendations

Info

3.3 Samples of fjord sedimentFinally, sediment samples in the fjord was taken during 1996, most ofthem in Roskilde Vig in a fan-shaped geometry near the outlet from RoskildeWWTP (map Figure 2).NSludgeamendedfieldStation 2Roskilde Vig⊗∆WWTP outletFigure 21 kmRoskildeharbourLocal map of Roskilde Vig, 1:25000, showing locations of sedimentsampling sites and sources.x Sampling sites ⊗ Sediment core∆ WWTP outlet ∇ Sludge dumping site∇Roskilde CityThe sampling design is based on investigations carried out 1994-95 forRoskilde County Authority and Roskilde Municipality by Danish HydraulicInstitute and Water Consult. According to these reports the currentis circulating in the Vig mainly driven by the wind, the tide playing aminor role. The wind is predominantly in the West direction, leading toan South-East water current in the area having a velocity of 2-6 cm/sec.The WWTP average outlet of waste water is 19000 m 3 /day.Some samples were taken further North in Roskilde Vig and in RoskildeBredning, on the same locations as the monthly water samples. Thesediment also included samples from the neighbouring fjord Isefjord, believedto be lesser polluted, for comparison. These fjord sediment sampleswere taken by a diver. All sediment samples were taken in the upper2-5 cm of the sediment, with the exception of the core, which reached adepth of about 22 cm into the sediment. An overview of these samples isshown in Table 4.16The sampling methods are described more detailed in the AnalyticalChapter.
Table 4 Overview of samples of fjord sediment taken 1996Location Dir, km nRoskilde Vig, near WWTP outlet E 1 * 13Roskilde Vig, Station 2 N 2 1Roskilde Vig, Station 2044 N 4 1Roskilde Bredning, Station 60 N 6 1Isefjord, Tempelkrog & Bramsnæs 2Dir = direction and distance from Roskilde n = number of samples* including the core, counted here as one sample.17
Page 2 and 3: [Blank page]
Page 4 and 5: Data sheetTitle:Phthalates and Nony
Page 6 and 7: 6.2 Sources 646.3 Model parameters
Page 8 and 9: The physico-chemical processes in t
Page 10 and 11: De fysisk-kemiske processer i fjord
Page 13: 2 PurposeThe aim of the study has b
Page 16 and 17: In Table 3 the flow in the streams
Page 21 and 22: 4 AnalyticalThe following substance
Page 23 and 24: 4.5 Standards and spikesThe labelle
Page 25 and 26: In Table 9 the results of the test
Page 27: The analysis was carried out as des
Page 30 and 31: 100Concentration ng/l90807060504030
Page 32 and 33: 400300DBP ng/l2001000JunJunSepDecMe
Page 34 and 35: 5.1.3 Monthly samples in Roskilde V
Page 36 and 37: 5.1.4 Analysis of varianceTo evalua
Page 38 and 39: Table 15 Correlations at Stations 2
Page 40 and 41: 500r = 0.86 (p=0.01)400DEHP ng/l al
Page 42 and 43: Table 16 Concentrations in fjord se
Page 44: tion levels off, ultimately approac
Page 47 and 48: 200NPNPDEConcentration, ng/g d.m.15
Page 49 and 50: was observed in the flow direction
Page 51 and 52: 1000800meanConcentration, ng/g dw60
Page 53 and 54: NPDE and DEHP in the Hove Å system
Page 55 and 56: µg/m²/y000800600400200013-Nov27-N
Page 57 and 58: 6 Mathematical data interpretationI
Page 59 and 60: 6.1.2 Sorption and solvationIn the
Page 61 and 62: Different standard methods can be u
Page 63 and 64: Introducing the concentration of se
Page 65 and 66: substances migrate more rapidly tha
Page 67 and 68: • In 1969 in connection with work
Page 69 and 70:
SeaDispersion modelBox-modelsIsefjo
Page 71 and 72:
AtmosphericdepositionxdxN wx + ∂
Page 73 and 74:
tWater gridxo• • •i+1 i i-1x
Page 75 and 76:
6.4.3 Dynamic solution to the diffu
Page 77 and 78:
The two diffusion curves and the tw
Page 79 and 80:
Fluxsedimentation /Fluxtotal1,00,90
Page 81 and 82:
µg DEHP / sec10008006004002000-200
Page 83 and 84:
7 ConclusionsDEHP was the most abun
Page 85 and 86:
8 ReferencesBerger, W.H. & Heath, G
Page 87:
Smith, R. (1986): Mixing and Disper
Page 90 and 91:
NPNPDENPEPAEPFKPhthalatesdSIMSpikeS
Page 92 and 93:
dzD benzeneD DEHPVertical step in s
Page 94 and 95:
Ptt sedzαθ sProduct from bio-degr
Page 97 and 98:
12 Appendix A.Analytical performanc
Page 99 and 100:
4000NPDE3000Mean + - sdRegression l
Page 101 and 102:
300250DEHPMean + - sdRegression lin
Page 103 and 104:
and mass-spectrometrical characeris
Page 105 and 106:
1000800BBPMean + - sdRegression lin
Page 107 and 108:
National Environmental Research Ins
Page 109:
The aim of the study has been to in
show all

Phthalates and Nonylphenols in Roskilde Fjord

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?