1. Studies of toxic effects of Hg(II) on Pistia stratiotes

   • Anil K. De
   • Asit K. Sen
   • Sasadhar Jana

   OriginalPaper Pages: 351 - 360

2. Acid deposition near a sour gas plant in southwestern Alberta

   • C. M. L. Dufour
   • B. Chapman
   • M. Nosal

   OriginalPaper Pages: 361 - 373

3. Leaf injury and elemental concentrations in vegetation near a coal-fired power plant

   • M. J. Trlica
   • R. D. Child
   • B. A. Bauerle

   OriginalPaper Pages: 375 - 396

4. Phytase inhibition by insecticides and herbicides

   • S. Cervelli
   • A. Perna

   OriginalPaper Pages: 397 - 403

5. Temperature effects on plant response to sulfur dioxide in Zea mays, Liriodendron tulipifera, and Fraxinus pennsylyanica

   • G. E. Taylor Jr.
   • W. J. Selvidge
   • I. J. Crumbly

   OriginalPaper Pages: 405 - 418

6. The impact of cloud chemistry on photochemical oxidant formation

   • Christian Seigneur
   • Pradeep Saxena

   OriginalPaper Pages: 419 - 429

7. A basic microcomputer program for calculating LD₅₀ values

   • J. T. Trevors
   • C. W. Lusty

   OriginalPaper Pages: 431 - 442

8. Microbial transformation of alkylpyridines in groundwater

   • J. E. Rogers
   • R. G. Riley
   • B. L. Thomas

   OriginalPaper Pages: 443 - 454

9. Book reviews

   • Michel Benarie

   BookReview Pages: 455 - 455