Allsopp, M.A., Costner, P. & Johnston, P.A. (1995). Body of evidence: the effects of chlorine on human health. Publ: Greenpeace International, Amsterdam, 90pp. ISBN 187/532 28 0.

Swindlehurst, R.J., Johnston, P.A.,Trondle, S. & Stringer, R.L., Stephenson, A. & Stone, I.M. (1995). Regulation of toxic chemicals in the Mediterranean: The need for an adequate strategy. Sci. Tot. Environ. 171: 243-264.

Wallace, H. & Johnston, P. (1995). Letter to the Editor, Nature 376: 208.

Santillo, D. & Pocock, I. (1994) Water quality status of the Carra-Mask system. Co. Mayo, Ireland. Greenpeace Research Laboratories, Technical Note 02/1994: 49 pp. Download Paper

Smith, V.J, Johnston, P.A., Swindlehurst, R.J. & Vethaak, D.A. (1994) Effect of Exposure to Harbour Dredge Spoils on Immune Capability in the Common Shrimp, Crangon Crangon. Greenpeace Research Laboratories & Rijkswaterstaat Tidal Waters Division, 1994.: 2 pp. Download Paper

Johnston, P., Marquardt, S., Keys, J. & Jewell, T. (1994) Shipping and handling of pesticide cargoes: Accidents will happen, practice must change. Greenpeace Research Laboratories, 1994: 12 pp. Download Paper

Johnston, P.A., & Stringer, R.L. (1994). Information on the Environmental Significance of the Chlorophenoxyacetic Acid Herbicide MCPA. Greenpeace Research Laboratories, Technical Note 04/94: 6 pp. Download Paper

Cobbing, A., Divecha, S., Vallette, J., McLellan, M., Troendle, S., Johnston, P., Swindlehurst, R., Huxham, M., Rossi, S., Leonard, A., Morgan, N., Mills, S. & Gingras, S. (1994) Lead Astray – The Poisonous Lead Battery Waste Trade. A Greenpeace Report, March 1994: 36 pp. Download Report

Simmonds, M. P., Johnston, P.A., French, M.C., Reeve, R. & Hutchinson, J.D. (1994) Organochlorines and mercury in pilot whales blubber consumed by Faroe islanders, 1994: The Science of Total Environment 194 97-111. Download Paper

Stringer, R.L, Johnston, P.A., Clayton, R., Swindlehurst, R.J. (1994). Back to Basics: The Case for an Intensification in the Monitoring of Point Source Discharges. Greenpeace Research Laboratories, January 1994: 24 pp. Download Paper