• Ayer, W.C.
  NB Dept of the Environment
  
• Brun, G.L.
  Inland Waters Directorate Lab
  
• Eidt, D.C.
  Maritimes Forest Research Centre
  
• Ernst, W.
  Environment Canada
  
• Mallet, V.N.
  University of Moncton
  
• Matheson, R.A.
  Environment Canada
  
• Silk, P.J.
  NB Research and Productivity Council
  

In January 1983, a cooperative study was established to determine whether aerially applied fenitrothion at 2 x 210 g/ha was persisting beyond eight months and accumulating in the New Brunswick environmen. Examined were pond water, pond sediments, mineral soil, and balsam fir,  foliage collected mid-winter from sites in New Brunswick sprayed one, two, and three successive years and from unsprayed sites in Nova Scotia. Three recognized laboratories participated 1n the analysis of samples.