Environmental Fate

EAG draws on more than 40 years of analytical expertise identifying and quantifying test substances in soil, water and other complex matrices to provide complete environmental fate testing services. We maintain a veteran staff of analytical chemists, structural elucidation chemists and study directors, who are well versed in United States, Canadian, European Union and Japanese test guidelines. Our laboratories are equipped with accurate mass HPLC/MS instruments to rapidly identify metabolites.

EAG also offers the advantages of in-house radiolabeling synthesis services and greenhouse facilities, as well as established relationships with GLP compliant field cooperators that are licensed to work with radiotracers. As a result, our clients not only benefit from unparalleled scientific e-fate expertise, they also enjoy the convenience and efficiency of seamless program management. All work is conducted in compliance with corresponding Good Laboratory Practices (GLP).


  • Metabolism and rates in soils and sediments: aerobic, anaerobic, and aquatic (with and without 14C labeling)
  • Soil sorption and mobility: adsorption/desorption and column leaching studies
  • Soil volatility
  • Tobacco pyrolysis
  • Hydrolysis: at various pH values and temperatures
  • Photolysis:
    • Suntest CPS+ Systems
    • Sterile buffer and/or natural waters
    • Quantum yield measurement (actinometry)
    • Soils
  • Adsorption/desorption
  • Aerobic and anaerobic aquatic sediment metabolism
  • Aerobic and anaerobic soil metabolism
  • Soil column leaching
  • Mineralization in surface water
  • Biodegradability of chemicals discharged in wastewater
  • Ready and inherent biodegradability
  • Degradation in manure
  • Soil microorganisms
    • Nitrogen and carbon transformation
  • Metabolite/degradation product ID
  • Volatilization from soil and plant surfaces, radiolabeled or non-labelled
  • Field environmental fate
    • Terrestrial dissipation
      • Field plot studies
      • Small plot/field lysimeters
    • Aquatic dissipation
      • Soil, sediment and water
      • Aquatic species
    • Field volatility and flux measurement

EAG scientists also offer specialty designs to adapt to guidelines for chemicals with unusual physical/chemical properties, such as extreme hydrophobicity, volatility, or instability under normal test conditions.

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