Photochemical Oxidation of Terbufos (pp 1349-1353)
C.M. Lee, B. Anderson, A.W. Elzerman

Patterns of Groundwater Concentration and Fate of Lindane in an Irrigated Semiarid Area, Argentina (pp 1354-1361)
J.O. Ares, A.M. Miglierina, R. Sánchez

Coupling Mercury Methylation Rates to Sulfate Reduction Rates in Marine Sediments (pp 1362-1369)
J.K. King, F. M. Saunders, R.F. Lee, R.A. Jahnke

Fish Mercury Distribution in Massachusetts, USA, Lakes (pp 1370-1379)
J. Rose, M.S. Hutcheson, C.R. West, O. Pancorbo, K. Hulme, A. Cooperman,
G. DeCesare, R. Isaac, A. Screpetis

Influence of Ortho-substitution and Homolog Group on Polychlorinated Biphenyls Bioaccumulation Factors and Fugacity Ratios in Plankton and Zebra Mussels (Dreissena polymorpha) (pp 1380-1389)
E.J. Willman, J.B. Manchester-Neesvig, C. Agrell, D.E. Armstrong

Global Chemical Fate of a-Hexachlorocyclohexane. 1. Modification and Evaluation of a Global Distribution Modeleferences (pp 1390-1399)
F. Wania, D.Mackay, Y-F Li, T.F. Bidleman, A. Strand

Global chemical fate of a-Hexachlorocyclohexane 2. Use of a Global Distribution Model for Mass Balancing, Source Apportionment, and Trend Prediction (p 1400-1407)
F. Wania, D. Mackay

Effect of Tween Surfactants on Methanogenesis and Microbial Reductive Dechlorination of Hexachlorobenzene (pp 1408-1416)
D.H. Yeh, K.D. Pennell, S.G. Pavlostathis

Facilitated Transport in European Soils from the Euro-Soil Project (pp 1417-1424)
J. Dolfing, D. Scheltens

Assessment of DNA Damage in Filamentous Fungi by Single Cell Gel Electrophoresis (Comet Assay) (pp 1421-1424)
A. Hahn, B. Hock

Acute Aquatic Life Criteria for Selenium (pp 1425-1432)
S.P. Canton

Reproductive Ecology of Tree Swallows (Tachycineta bicolor) with High Levels of Polychlorinated Biphenyls Contamination (pp 1433-1439)
J.P. McCarty, A.L. Secord

Interspecies Scaling of the Bioaccumulation of Lipophilic Xenobiotics in Fish: An Example Using Trifluralin (1440-1449)
I.R. Schultz, W.L. Hayton

Molt-Independent Growth Inhibition of Daphnia magna by a Vertebrate Anti-Androgen (pp 1450-1455)
G.A. LeBlanc, J.B. McLachlan

Toxicity and Bioavailability of the Organophosphorus Insecticide Pirimiphos Methyl to the Freshwater Amphipod Gammarus pulex L. in Laboratory and Mesocosm Systems (pp 1456-1461)
M. Crane, C. Attwood, D. Sheahan, S. Morris

Phytotoxicity, Uptake, and Distribution of 14C-Simazine in Canna hybrida 'Yellow King Humbert' (pp 1462-1468)
C.P. Wilson, T. Whitwell, S.J. Klaine

Estimating Time-to-Gravid for a Freshwater Mussel Utterbackia imbecillis, (Unionidae), Following Temperature Conditioning in the Laboratory (pp 1469-1473)
K.B. Van Vreede, D.L. MacIntosh, M.C. Black

Effects of Sporophyll Storage on Giant Kelp, Macrocystis pyrifera (Agardh), Bioassy (pp 1474-1481)
J.R. Gully, J.P. Bottomley, R.B. Baird

The Effect of Temperature on Potency of Carbaryl for Survival of the Tadpoles of the Green Frog, Rana clamitans &endash; Short Communication (pp 1482-1484)
M.D. Boone, C.M. Bridges

Causes of Toxicity in Stormwater Runoff from Sawmills (pp 1485-1491)
H.C. Bailey, J.R. Elphick, A. Potter, E. Chao, D. Konasewich, B. Zak

Immunomodulation by Heavy Metals Tested Individually or in Mixtures in Rainbow Trout (Oncorhynchus mykiss) Exposed In Vivo (pp1492-1497)
J. Sanchez-Dardon, I. Voccia, A. Hontela, S. Chilmonczyk, M. Dunier,
H. Boermans, B. Blakley, M. Fournier

Occurrence of Retene and Resin Acids in Sediments and Fish Bile in a Lake Receiving Pulp and Paper Mill Effluents (pp 1498-1505)
H. Leppänen, A. Oikari

Correlation Between the Response of a Human Cell Line and Distribution of Sediment Polycyclic Aromatic Hydrocarbons and Polychlorinated Biphenyls on the Palos Verdes Shelf, California, USA (pp 1506-1510)
J.W. Anderson, E.Y. Zeng, J.M. Jones

Bioaccumulation Profiles of Polychlorinated Biphenyl Congeners and Organochlorine Pesticides in Ganges River Dolphins (pp 1511-1520)
K. Senthilkumar, K. Kannan, R.K. Sinha, S. Tanabe, J.P. Giesey

High Frequency of K-ras Mutations in Pink Salmon Embryos Experimentally Exposed to Exxon Valdez (pp 1521-1528)
N.K. Roy, J. Stabile, J.E. Seeb, C. Habicht, I. Wirgin

Individual and Demographic Responses of the Gray-Tailed Vole to Vinclozolin (1529-1533)
T.M. Caslin, J.O. Wolff

Influence of Sediment Organic Matter Quality on Growth and Polychlorinated Biphenyls Bioavailability in Amphiura filiformis (Echinodermata) (pp 1534-1543)
J.S.G. Gunnarsson, M.E. Granberg, H.C. Nilsson, R. Rosenberg, B. Hellman

Is the Per Capita Rate of Increase a Good Measure of Population-Level Effects in Ecotoxicology? (pp 1544-1556)
V.E. Forbes, P. Calow

Use of Flow Cytometry to Detect Genetic Damage in Mallards Dosed with Mutagens (pp 1557-1563)
J.B. Whittier, K. McBee

Fully Defined Salt Water Medium for Cultivation of and Toxicity Testing with Marine Copepod Acartia tonsa (pp 1564-1567)
K.O. Kusk, L. Wollenberger

Low Exposure Concentrations of Atrazine Increase Male Production in Daphnia pulicaria (pp 1568-1573)
S.I. Dodson, C.M. Merritt, J-P. Shannahan, C.M. Shults

Ecological Risk Assessment of Agrochemicals in European Estuaries (1574-1581)
R.J.C.A. Steen, P.E.G. Leonards, U.A.Th. Brinkman, D. Barceló, J. Tronczynski, T.A. Albanis, W.P. Cofino

Exploring the Effects of Consumer-Resource Dynamics on Contaminant Bioaccumulation by Aquatic Herbivores (pp 1582-1590)
M. Spencer, N.S. Fisher, W.-X.Wang

Ecotoxicological and Analytical Assessment of Hydrocarbon-Contaminated Soils and Application to Ecological Risk Assessment (pp 1591-1607)
A. Saterbak, R.J. Toy, D.C.L. Wong, B.J. McMain, M.P. Williams, P.B. Dorn, L.P. Brzuzy, E.Y. Chai, J.P. Salanitro