Research Opportunities in Environmental Health in Latin America
Jacobo Finkelman
p. 254

Review & Commentary

• Risk Assessment, the Environment, and Public Health
  Joseph V. Rodricks
  p. 258

  Assessing Deleterious Ecosystem-level Effects of Environmental Pollutants as a Means of Avoiding Evolutionary Consequences
  Gerald A. LeBlanc
  p. 266

Environews

Forum

Natural Remedies
Silicon Lungs
Contaminants in Fish
Plutonium Problems
Drinking Water Guidelines
p. 268

Focus

Rings of Controversy around Benzene
p. 276
Baffling Butadiene
p. 282

Spheres of Influence

Can You Still Drink the Water?
p. 286

Research Advance

Polychlorinated Biphenyls as Hormonally Active Structural Analogues
James D. McKinney and Chris L. Waller
p. 290

Articles

• UV-B Exposure Impairs Resistance to Infection by Trichinella spiralis
  Wim Goettsch, Johan Garssen, Anton Deijns, Frank R. de Gruijl, and Henk van Loveren
  p. 298

• Humoral Immunosuppression in Men Exposed to Polycyclic Aromatic Hydrocarbons and Related Carcinogens in Polluted Environments
  Andrzej Szczeklik, Jerzy Szczeklik, Zdzislaw Galuszka, Jacek Musial, Emilia Kolarzyk, and Dorota Targosz
  p. 302

• Application of Reliability Models to Studies of Biomarker Validation
  Emanuela Taioli, Patrick Kinney, Anatoly Zhitkovich, Helen Fulton, Victoria Voitkun, Greg Cosma, Krystyna Frenkel, Paolo Toniolo, Seymour Garte, and Max Costa
  p. 306

  Environmental Health Knowledge and Practice Survey among Secondary Schoolchildren in Zaria, Nigeria
  R.D. Ebong
  p. 310

Meeting Report

• Diet for Fischer-344 Rats in Long-term Studies
  G. N. Rao
  p. 314

• Sentinel Health Events of Environmental Contamination: A Consensus Statement
  Carl Shy, Ray Greenberg, and Deborah Winn
  p. 316

  Nasal Toxicity and Dosimetry of Inhaled Xenobiotics: Implications for Human Health
  Gary A. Boorman
  p. 318