1. Effect of municipal landfill leachate on mercury movement through soils

   • E. E. Niebla
   • N. E. Korte
   • W. H. Fuller

   OriginalPaper Pages: 399 - 399

2. UV photoreduction of aqueous nitrite in heptane suspensions

   • Gianna L. Petriconi
   • Henry M. Papee

   OriginalPaper Pages: 403 - 406

3. Modelling sulphur dioxide levels in the Sarnia area

   • T. S. Wong
   • K. Heidorn
   • D. Yap

   OriginalPaper Pages: 407 - 414

4. Economic trade-offs to limit nonpoint sources of agricultural pollution

   • Earl O. Heady
   • Kenneth J. Nicol
   • James C. Wade

   OriginalPaper Pages: 415 - 430

5. The calibration of a phytoplankton growth model using batch culture data

   • Timoth C. Lederman
   • George M. Hornberger
   • Mahlon G. Kelly

   OriginalPaper Pages: 431 - 442

6. Aerial input of heavy metals into an aquatic ecosystem

   • T. Peytoni
   • A. Mcintosh
   • K. Yost

   OriginalPaper Pages: 443 - 451

7. Impacts of state land use and environmental regulations

   • Earl O. Heady
   • V. S. S. V. Nagadevara

   OriginalPaper Pages: 453 - 468

8. Impact of man's activities on the chemical composition in the sediments of Lakes Ontario, Erie and Huron

   • A. L. W. Kemp
   • R. L. Thomas

   OriginalPaper Pages: 469 - 490

9. Computed leaching of pesticides from soil under field conditions

   • Minze Leistra
   • Wim A. Dekkers

   OriginalPaper Pages: 491 - 500

10. Note on the effectiveness of indoor shelter as a countermeasure to achieve reduced radionuclide inhalation in the event of a nuclear accident

    • Richard T. Cederwall
    • Ronald E. Meyers
    • Joseph D. Polk

    OriginalPaper Pages: 501 - 505

11. Some measurements of air quality and precipitation in Saint John, N.B.

    • K. G. Anlauf
    • H. A. Wiebe
    • R. D. S. Stevens

    OriginalPaper Pages: 507 - 514

12. Book reviews

    • Robert N. Varney
    • Clarence G. Golueke
    • John E. Evans

    BookReview Pages: 515 - 517

13. Announcements

    Announcement Pages: 519 - 522