| rcep.org.uk | Royal Commission on Environmental Pollution |
| pesticides.gov.uk | Pesticides Safety Directorate |
| dwi.gov.uk | Drinking Water Inspectorate Main Index |
| cefas.co.uk | The Centre for Environment, Fisheries and Aquaculture Science. |
| cazr.csiro.au | CSIRO Sustainable Ecosystems - Centre for Arid Zone Research, Alice Springs NT, |
| ufl.edu | University of Florida Center for Natural Resources |
| columbia.edu | Center for Environmental Research & Conservation |
| ciit.org | Chemical Industry Institute of Toxicology |
| uaf.edu | Center for Global Change |
| latrobe.edu.au | Centre For Environmental Stress and Adaptation Research |
45572