1. Dispersion of chlorpyrifos in soil beneath concrete slabs

   • C. R. Thomas
   • W. H. Robinson

   OriginalPaper Pages: 1 - 6

2. Loss of enhanced biodegradation of 2,4-D and MCPA in a field soil following cessation of repeated herbicide applications

   • A. E. Smith
   • A. J. Aubin

   OriginalPaper Pages: 7 - 11

3. Effects of herbicides and fumigants on microbial activities in soil

   • C. M. Tu

   OriginalPaper Pages: 12 - 17

4. Domoic acid: A teratology and homeostatic study in rats

   • K. S. Khera
   • C. Whalen
   • D. L. Arnold

   OriginalPaper Pages: 18 - 24

5. Natural levels of abnormalities in the trilling frog (Neobactrachus centralis) at the Olympic Dam mine

   • J. L. Read
   • M. J. Tyler

   OriginalPaper Pages: 25 - 31

6. Lead concentration in farmlands in southern Spain: Influence of the use of sewage sludge as fertilizer

   • C. Cabrera
   • E. Ortega
   • M. C. López

   OriginalPaper Pages: 32 - 38

7. Organochlorine pesticides in swine tissues from abattoir material collected in Nairobi, Kenya

   • R. Kotonya
   • G. M. Mutungi
   • L. W. Kanja

   OriginalPaper Pages: 39 - 45

8. Short-term weathering rates of buried oils in experimental sand columns over north-temperate temperature range

   • J. H. Vandermeulen
   • J. W. Thorpe
   • K. E. Hellenbrand

   OriginalPaper Pages: 46 - 53

9. Cadmium, chromium, copper, and zinc in rice and rice field soil from southern Catalonia, Spain

   • M. Schuhmacher
   • J. L. Domingo
   • J. Corbella

   OriginalPaper Pages: 54 - 60

10. Heavy metals in common foodstuff: Quantitative analysis

    • P. Tsoumbaris
    • H. Tsoukali-Papadopoulou

    OriginalPaper Pages: 61 - 66

11. Heavy metals in common foodstuff: Daily intake

    • P. Tsoumbaris
    • H. Tsoukali-Papadopoulou

    OriginalPaper Pages: 67 - 70

12. Comparison of techniques for the extraction of lipids and PCBs from benthic invertebrates

    • K. Booij
    • C. van den Berg

    OriginalPaper Pages: 71 - 76

13. Estimation of urobilin as a fecal pollution indicator in the aquatic environment

    • Y. Miyabara
    • N. Sugaya
    • S. Suzuki

    OriginalPaper Pages: 77 - 84

14. Development and evaluation of a nondestructive measure of fish growth for sublethal toxicity assessment

    • S. C. Foster
    • S. L. Burks
    • M. D. Matlock

    OriginalPaper Pages: 85 - 90

15. Toxicity identification evaluation using a short-term chronic test with Ceriodaphnia dubia

    • K. M. Jop
    • A. M. Askew

    OriginalPaper Pages: 91 - 97

16. Variation in the sensitivity of aquatic species to toxicants

    • J. A. Hoekstra
    • M. A. Vaal
    • W. Slooff

    OriginalPaper Pages: 98 - 105

17. Differences in the drug-metabolizing enzyme activities among fish and bivalves living in waters near industrial and non-industrial areas

    • Y. Oshima
    • K. Kobayashi
    • N. Imada

    OriginalPaper Pages: 106 - 112

18. Nitrite-induced methemoglobin formation and recovery in rainbow trout (Oncorhynchus mykiss) at high chloride concentrations

    • P. A. Rodriguez-Moreno
    • J. V. Tarazona

    OriginalPaper Pages: 113 - 119

19. Effects of atrazine, isoproturon, and mecoprop on the macrophyte Lemna minor and the alga Scenedesmus subspicatus

    • M. F. Kirby
    • D. A. Sheahan

    OriginalPaper Pages: 120 - 126

20. Effects of diazinon, malathion, and paraquat on the behavioral response of the shrimp Metapenaeus ensis to chemoattractants

    • K. H. Chu
    • P. Y. Lau

    OriginalPaper Pages: 127 - 133

21. Algal toxicity of binary combinations of pesticides

    • M. Faust
    • R. Altenburger
    • L. H. Grimme

    OriginalPaper Pages: 134 - 141

22. Effect of an organochlorine and three organophosphate pesticides on glucose, glycogen, lipid, and protein contents in tissues of the freshwater snail Bellamya dissimilis (Müller)

    • J. Padmaja Rambabu
    • M. Balaparameswara Rao

    OriginalPaper Pages: 142 - 148

23. Evaluation of liver protein due to stress under 2,4-D intoxication in Channa punctatus (Bloch.)

    • S. Singh
    • D. P. S. Bhati

    OriginalPaper Pages: 149 - 152

24. Chemical batch as a factor affecting the acute toxicity of the reference toxicant potassium dichromate to the cladoceran Moina australiensis (Sars)

    • F. R. Krassoi
    • M. Julli

    OriginalPaper Pages: 153 - 157

25. Effect of manganese and zinc on the growth of Anacystis nidulans

    • L. H. Lee
    • B. Lustigman
    • D. Dandorf

    OriginalPaper Pages: 158 - 165

26. Effects of short-term exposure to methylmercury chloride and its withdrawal on serum levels of thyroid hormones in the catfish Clarias batrachus

    • R. Kirubagaran
    • K. P. Joy

    OriginalPaper Pages: 166 - 170