1. International Institute for Environment and Development, 3 Endsleigh
Street, London, WC1H ODD, UK
2. Environmental Economics Programme, International Institute for
Environment and Development, 3 Endsleigh Street, London, WC1H ODD, UK
3. Department of Paediatrics and Child Health, Makerere Medical School, PO
Box 7072, Kampala, Uganda
4. Institute of Resource Assessment, University of Dar es Salaam, PO Box
49039, Dar es Salaam, Tanzania
5. Community Management and Training Services (East Africa), Park Place,
Magadi Road, Langata, PO Box 292 Kiserian, Nairobi, Kenya
6. Pollution Prevention and Control Division, Environment Directorate,
Organization for Economic Cooperation and Development, 2 rue Andre Pascal,
Paris 75016, France