1. Chronic dose effects of methyl parathion on nuthatches: Cholinesterase and ptilochronology

   • G. B. Herbert
   • T. J. Peterle
   • T. C. Grubb

   OriginalPaper Pages: 471 - 475

2. Delta aminolevulinic acid dehydratase and ferrochelatase activities during chronic lead exposure in mice

   • M. Torra
   • M. Rodamilans
   • J. Corbella

   OriginalPaper Pages: 476 - 481

3. Development of the cotton rat (Sigmodon hispidus) as a biomonitor of environmental contamination with emphasis on hepatic cytochrome P-450 induction and population characteristics

   • Chandikumar S. Elangbam
   • Charles W. Qualls Jr.
   • Joe Novak

   OriginalPaper Pages: 482 - 488

4. Using the scoparone O-demethylase assay for categorizing types of hepatic microsomal monooxygenase inducers

   • Sachiko Kato
   • Kenji Yamamoto

   OriginalPaper Pages: 489 - 494

5. Decrease of inhaled toluene, ethyl benzene, m-xylene, or mesitylene in rat blood after combined exposure to ethyl acetate

   • K. J. Freundt
   • K. G. Römer
   • R. J. Federsel

   OriginalPaper Pages: 495 - 498

6. Histopathological changes in liver and kidney ofMus booduga following oral benzenehexachloride (BHC) feeding

   • G. Harold Philip
   • P. K. Sriraman
   • R. Ramamurthi

   OriginalPaper Pages: 499 - 502

7. Body size and organ accumulation of mercury and selenium in young harbor seals (Phoca vitulina)

   • S. Himeno
   • C. Watanabe
   • N. Imura

   OriginalPaper Pages: 503 - 509

8. Treatment of landfill leachate by spray irrigation—An overview of research results from Ontario, Canada. I. Site hydrology

   • R. A. McBride
   • A. M. Gordon
   • P. H. Groenevelt

   OriginalPaper Pages: 510 - 517

9. Treatment of landfill leachate by spray irrigation—An overview of research results from Ontario, Canada. II. Soil quality for leachate disposal

   • R. A. McBride
   • A. M. Gordon
   • P. H. Groenevelt

   OriginalPaper Pages: 518 - 525

10. Fate of organic contaminants during sewage sludge composting

    • Kenneth D. Racke
    • Charles R. Frink

    OriginalPaper Pages: 526 - 533

11. Element composition of municipal refuse ashes and their aqueous extracts from 18 incinerators

    • Donald J. Lisk
    • Carol L. Secor
    • Thomas H. Kuntz

    OriginalPaper Pages: 534 - 539

12. Compressive strength of cement containing ash from municipal refuse or sewage sludge incinerators

    • Donald J. Lisk

    OriginalPaper Pages: 540 - 543

13. Fate of¹⁴C nitrofen in rice paddy ecosystem

    • S. P. Kale
    • K. Raghu

    OriginalPaper Pages: 544 - 547

14. Cyanide content of cassava mash and gari flour and influence of water activity (a_w) during storage

    • Mark E. Ukhun
    • Edward N. Dibie

    OriginalPaper Pages: 548 - 552

15. Toxic and potentially toxic constituents of gari and beef marketed in Nigerian traditional markets

    • Mark E. Ukhun
    • Dominic O. Iwenor

    OriginalPaper Pages: 553 - 557

16. Temperature and humidity dependence of formaldehyde release from selected building materials

    • Chris van Netten
    • Cliff Shirtliffe
    • J. Svec

    OriginalPaper Pages: 558 - 565

17. Evaporative dissipation of methyl parathion from laundered protective apparel fabrics

    • Joan Laughlin
    • Roger E. Gold

    OriginalPaper Pages: 566 - 573

18. Comparative analysis of lead in maine urban soils

    • John A. Krueger
    • Kathy M. Duguay

    OriginalPaper Pages: 574 - 581

19. Water contamination by heavy metals (Hg, Cd, Pb, Cu and Zn) in Doñana National Park (Spain)

    • Ma. C. Rico
    • L. M. Hernández
    • Ma. J. González

    OriginalPaper Pages: 582 - 588

20. Levels of chlordane in water and sediment of rivers around Saga City, Japan

    • Yukio Hirai
    • Katsumaro Tomokuni

    OriginalPaper Pages: 589 - 594

21. Pesticide residues in drinking water in the North Coast region of New South Wales, Australia, 1986–87

    • C. Ang
    • K. Meleady
    • L. Wallace

    OriginalPaper Pages: 595 - 602

22. Organochlorine pesticide residues in grain storages of New South Wales

    • William J. Allender

    OriginalPaper Pages: 603 - 608

23. Effect of selenium on reproductive behavior and fry of fathead minnows

    • Mark Pyron
    • Thomas L. Beitinger

    OriginalPaper Pages: 609 - 613

24. Effects of phenol exposure on the thermal tolerance ability of the central stoneroller minnow

    • Norman Chagnon
    • Ihor Hlohowskyj

    OriginalPaper Pages: 614 - 619

25. Inhibition of sodium-dependent taurine transport in red blood cells from the marine polychaete,Glycera dibranchiata, after exposure to mercury

    • Robert L. Preston
    • Chang Wen Chen

    OriginalPaper Pages: 620 - 627

26. Chemical and biological impact of effluent from edible bamboo shoot canning factory on a stream

    • Naoko Ueda
    • Seiichi Ishikawa
    • Kenzo Baba

    OriginalPaper Pages: 628 - 633

27. Heavy metals in bivalve molluscs in the huelva estuary

    • M. López-Artfguez
    • M. L. Soria
    • M. Repetto

    OriginalPaper Pages: 634 - 642