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is diverted in litis direction (Fig. 5.1.5). This flow introduces as much as 1.4 x 10 6 metric Ions per year ofsediment into the lake (Kemp et of. 1976). The particles injected with the flow were found highly contaminatedwith different organic poUutaDls (Carter andHites, 1992). Exclusively high rate ofdeposition in the vicinity oflite station (7.4 mm yr.!) has been determined in a study on sedimentation rates
Figure 5.1.5 Direction ofthe mean surface flow in the western end of Lake Erie as deduced from drift card studies (1892-1967). (After Hamblin., 1971.)
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POLYCYCLIC AROMATIC HYDROCARBONS IN
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composition. Portions ofthe lake th
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TABLE OF CONTENTS . ABSTRAcr._._ _
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6. CONCLUSIONS_._ _....._._._ _ ._
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FIGURE 3.104 CONfIGURATION OF ISOCH
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FIGURE 4 .2.12 SAMPLES AND PROMINEN
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fIGURE 5.3.1 DESCR1Pl1VE MODEL OF S
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APPENDIX B 3 _ T HEoerwt Of A PtUNC
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Ip » Ideno(l,2.3 cd)pyrene NIST =
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Figure L 1.1 The 16 parental polycy
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After release by the primary source
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decomposition processes (O'Malley e
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Figure 2.1.1 The Great Lakes draina
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;: Duluth Chicago 1 J Lake Superior
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are the Black River, the Cuyaho ga
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Figure 1.1.5 The pattern of permane
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sedimentary basins, Western. Centra
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Figure 2. 1.8 Summer (July) air and
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Natural Resources: The lower Great
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American waters under the current U
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continuously overflowed com bined s
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3.1 EXPERIMENTAL 3. METHODS 3.1.1 S
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Table 3,1.1 Locations and types ofs
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Figure 3.12 Extraction and purifica
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hexane. 2) the unsaturated aliphati
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this problem. Ratios ofthe two stab
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Figure 3. 1.4 Configuration ofIsoch
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3.2.1 UNl- AND BIVAJUATE METHODS Th
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f igure 3.2. 1 Mean and range (± s
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utilized the same instrument (Isoch
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Selecting lIt1J'iahlu: It was demon
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w- _ 71
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seven variables with fewer missing
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analysis also employed a greate r n
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description. The second cluster ana
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elationships between different site
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Figure 4.1.3 Regression ofthree fir
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Figure 4.[.5 Isotopic composition (
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Figure 4.1.6 Weights ofvariables (c
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Figure 4.1.8 Distri bution ofsample
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those at the majority ofstations. S
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Ion, 969, 971, 357, 358). In additi
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Figure 4.2.3 Samples and prominent
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analysis supported some ofthc previ
Page 135 and 136: , ", Is , , >\ ryr " II ,- - , I ,
Page 137 and 138: 11'
Page 139: sources (Fi g. 4.2 .5c). This compo
Page 143: Figure 4.2.7 The relative contribut
Page 146 and 147: ".1.1.2 Miring CllrIIU (isotopic co
Page 149: Figure 42.9 Samples and promin ent
Page 153: Figure 4.2.11 Samples and prominent
Page 157: Figure 4.2. 13 Samples and prominen
Page 168 and 169: It is difficult to differentiate be
Page 170 and 171: Figure 4.2.18 Weights ofvariables (
Page 172: Figure 42.19 Distribution ofsamples
Page 175 and 176: 5.1 SPATIAL DI STRIBUTION s. DISCUS
Page 177: f igure 5.1.1 Zones coinciding with
Page 180: f igure 5. 1.2 Average and range (
Page 184: Figure 5.1.4 Zones (clusters) in th
Page 191 and 192: The location ofthe third station at
Page 193: Figure 5.1.7 Station locations and
Page 201 and 202: 5.1.4 and Section 4.1.2). This clus
Page 204: Figure 5.1.1 1 Statioo locations an
Page 208 and 209: unaffected by the contaminated flow
Page 211 and 212: this station is die clo$esf to the
Page 213 and 214: samples and sources (Fig. 52.1 and
Page 216 and 217: There is yet another observation po
Page 218 and 219: with the relative contribution ofdi
Page 221 and 222: Table S.l.1 Six dusters identified
Page 224 and 225: the three previous ly identified zo
Page 229 and 230: contribution from petroleum related
Page 231 and 232: (Fig. 4.2.7). Finally. this site co
Page 233 and 234: Snow melt and sewer releases seem t
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importance ofcombustion-derived PAR
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Intens ity o(degradation (the South
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where this importance is somewhat r
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Figure 5.2.5 Station tocatices andz
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:2 for molecular composition assume
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ange of Slatistica1 variat ion of t
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Figure 5.].1 Descriptive model ofso
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conveyed into the river through dir
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molecular composition. Its applicat
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Canton L. and Grimal t 1. O. (1992)
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Howell E. T., Marvin C. H., Bilyea
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Olson F. C. W. (l950) The currents
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Willett P. (1981) Similarity and cl
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t Apprndb AI. [cout.) bl S,.lioD A<
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Appendill A6. The two-component mas
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Appendix A7. (cont.) Xl. = X llVt r
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• ass
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Appendix 82. (cont.)
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Appendix IU. (cant.) oj Tue Dec 24
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AppendiI C3. (cont.) Coo c.eo lrati
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