Distribution of Chlorinated Hydrocarbon Pesticides and PCBs in the ...

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Compound Table 5.1 Comparison of Physical Properties of the najor Drganochlorine Pesticides and PCBs Monitored in this Study (from Callahan et al, 1979) Vapour Pressure (torr 3 20-25.C) Solubility, ppb (uater, neutral pH, 20-25'C) PCBs (Arochlor 1254) 77.7 lo-5 12 - 5 0 Cyclodienes: aldrin 2.3 x 1 0 ' ~ (20°C) 17 - 100 dieldrin 1.8 x - 2.8 x 186 - 200 chlordane (cis & trans) 1 x 1 ~ - 5 56 - 1850 a endosulphan 1 lom5 150 - 600 endr i n 2 x l ~ ' 7 260 heptachlor 3 lo-4 56 - 180 heptachlor epoxide 100 - 350 Hexachlorocyclohexane alpha 2.5 x gamma 1 - 1.5 x Hexachiorobenzene 1.1 1 0 ‘ ~ < 20
these compounds (Table 1.1) and much lower water solubility. These compounds however have a high affinity for particles 5.1.1 Hexachlorocvclohexanes and Hexachlorobenzene Hexachlorocyclohexanes quantified in samples collected from the Ice Island are commonly observed atmospheric pollutants in Arctic air masses (Oehme and Stray, 1982; Oehme and Ottar, 1984; Oehme and Mano, 1984), snow (Gregor, 1987) and tissues of Arctic marine mammals and fish (Norstrom & &., 1985; Wong, 1985). Concentrations of alpha and gamma-HCH measured seasonally in air vapour off the northern coast of Norway varied from 160 to 1300 and 10 to 50 pg m'3 respectively with highest levels during summer (Oehme and Mano, 1984). In contrast, Tanabe and Tatsukawa (1980) reported concentrations of total HCH to be approximately an order-of-magnitude greater in air samples from the Northwest Pacific and Bering Sea. Values over the Ice Island are comparable to the lowest of the Norwegian concentrations and similar to levels reported by Bidleman & &. (1987) over southern Sweden during winter. Ratios of a1pha:gamma-HCH measured in air off the coast of Norway (12 - 28) and in southern Sweden (2 - 6) in these earlier studies span the range of values measured from the Ice Island in May (6.3) , August (15.7) and June (3.5) (Table 4.1) . Lower values, due to enrichment of gamma-HCH, may indicate supply through long range atmospheric transport to high latitudes during winter when the cold high-pressure center is located over Asia (Oehme and Manq, 1984; Barrie, 1986). We observed lower ratios in snow (1.5 to 5.5) which are comparable to values measured by Gregor (1987) for sites throughout the Northwest' Territories, including the Ice Island in May 1986. Tanabe and Tatsukawa ( 198 3 ) described latitudinal differences in proportions of HCH isomers due to an historic tendency for use of purified gamma HCH (lindane) in the southern hemisphere. However, there has also been an increasing use of purified lindane in the U.S, since 1978 (Bidleman & &. , 1987) .
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Scientific Excellence Resource Prot
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Canadian Technical Report of Fisher
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ABSTRACT RESUME/INUKTITUT SUMMARY 1
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RESULTS 4.1 Air v TABLE OF CONTENTS
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ABSTRACT Hargrave, B.T., W.P. Vass,
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dans la glace, ainsi que les donnQe
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USSR Figure 1.1 Approximate locatio
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2 1 3 measure concentrations of the
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' s 0: Q: '0, tn A : -k t 2 '2 t; 2
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TABLE 2.1 Li st of Samples Coll ect
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Figure 2.1 Drift pattern of the ice
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ice hole. The samplers were operate
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inverted onto the ice surface and t
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The other components of the plankto
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Table 2.3 Separation of Pooled Net
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were unsuccessful. Fish hooks or ny
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cleaned. Samples were collected on
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Air samples were collected with the
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3L PVC Niskin iype water samplers.
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Glass fibre filters (Whatman, 47 mm
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(for ultrasonic extraction) to whic
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Fraction 2: beta-HCH, alpha-HCH (60
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60 m column conditions used were th
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value is less than the procedural d
Page 52 and 53: 3.2.2 Blanks Procedural blanks (i.e
Page 54 and 55: Table 3.1 Ccrrparison of HCHs by XA
Page 56 and 57: Table 3.2. HCH Concentrations in Su
Page 58 and 59: ) In-situ Particulate Sampling Repl
Page 60 and 61: a) August 1986, 10m replicates Tabl
Page 62 and 63: Instrumental calibration was compar
Page 64 and 65: Table 3.7. Results of Analysis of E
Page 66 and 67: Table 3.9. Intercalibration of Orga
Page 68 and 69: e) Biota Samples Analytical precisi
Page 70 and 71: Table 3.12 Summary of Tri pl icate
Page 72 and 73: f) sediment samples Precision of ch
Page 74 and 75: funnel, shaken with 20 ml of 0.9% N
Page 76 and 77: 4. RESULTS Results are presented in
Page 78 and 79: 4.1.2 Air Particulates Quantifiable
Page 80 and 81: Table 4.2. Iby, 1% w t 25 - Jure 19
Page 82 and 83: ccrrpard alpha HCH gamna HCH plp'DD
Page 86: silicate and orthophosphate were ap
Page 90 and 91: Table 4.4 Slrrrary of Particulate O
Page 92: a weight:weight basis on all three
Page 95 and 96: observed in the May 1986 20 um and
Page 97 and 98: molluscs and holthurians. Individua
Page 99 and 100: Arochlor 1254 HCB X DDE Mi rex a HC
Page 101: 5. DISCUSSION The results indicate
Page 105 and 106: temperatures rose above 0°C. Our v
Page 107 and 108: southern latitudes in both hemisphe
Page 109 and 110: occurred in snow collected from the
Page 111 and 112: solvent extraction without separati
Page 113 and 114: Table 5.2. l2qmision of aganochlwin
Page 115 and 116: slightly higher. Hexachlorocyclohex
Page 117 and 118: - 0.5; in benthic amphipods ~0.3. Z
Page 119 and 120: Compound a HCH HCH C chlordane (tra
Page 121 and 122: observed from the Ice Island in the
Page 123 and 124: 6. RECOMMENDATIONS FOR FUTURE WORK
Page 125 and 126: 7. LITERATURE CITED Aagard, K., L.K
Page 127 and 128: Kinney, P., M.E. Arhleger and D.C.
Page 130 and 131: Appendix A Organochlorines in Air M
Page 132 and 133: Sample I .D. Volume (cu rn) Arochlo
Page 134 and 135: Sample I .D. Volume (cu m) 4 Arochl
Page 136 and 137: Sample I.D. Votume (cu in) Arochlor
Page 138: Sample I.D. Volume (cu m) Arochlor
Page 141 and 142: Sample I .D. Volm (L) Arochlor 1254
Page 143 and 144: Sample I.D. Volume (L) Arochlor 125
Page 146 and 147: Appendix C Dissolved and Particulat
Page 148 and 149: Sample I.D. Depth Volume (L) * Aroc
Page 150 and 151: Sample I .D. Depth Volume (L) 4!@ A
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Sample I.D. Depth Volune (L) 9' Aro
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Sample I.D. Depth Volume (L) * Aroc
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Sample I.D. Data I .D. Volume (L) *
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Sample I.D. Depth Volume (L) Arochl
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& Sample I .D. Depth Volume (L) Aro
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@ Aroch lor 1254 HCB Heptachlor ALd
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Appendix D Dissolved and Particulat
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Sample I .D. Volm (L) Aroch lor 125
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Sample I .D. Volume (L) Arochlor 12
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May 1986, Biota Sample August 1986,
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Sample I.D. Sample Name Species nam
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Sample I.D. Sample Name Collection
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"B Sample I .D. Sample Name 1 -JAR
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Sample I.D. Sample Name Cot lection
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Sample I .D. Sample Name Species na
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Sample I .D. Sample Nam Species nam
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Sample I .D. Sample Name Collection
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Sample I.D. Sample Name ?& Collecti
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Sample I.D. Sample Name 4 Collectio
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Sample I .D. Samp l e Name Col lect
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Sample I .D. Sample Name 4 Collecti
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Sample I.D. Sample Name 98 Collecti
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Sample 1.0. Sample Name a Collectio
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9 Sample I.D. Sample Name Collectio
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Sample I .D. Sample Name Collection
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Appendix F Organochlorines in Surfa
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Sample I.D. Weight (g) Arochlor 125
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Sample 1.D Arochlor 1254 HCB Heptac
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ICE ISLAND PLANKTON SAMPLES SUMMARY
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ICE ISLAND PLANKTON SAMPLES 14 June
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ICE ISLAND PLANKTON SAMPLES 27 May
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ICE ISLAND PLANKTON SAMPLES 14 June
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ICE ISLAND PLANKTON SAMPLES 28 May
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ICE ISLAND PLANKTON SAMPLES 29 Aug
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ICE ISLAND PLANKTON SAMPLES 28 Aug
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Project Z€nrr~ OCLCJ\~~~CCAP,~, c
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Project Jgfit
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Test Hole l?'-3 Depth Dry Wt.of Coa
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- 224 - THURBER CONSULTANTS LTP. GR
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