1. Material Cycles Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba 305-8506, Japan
2. Universidade Federal do Rio de Janeiro, Instituto de Biofísica Carlos Chagas Filho, 21941-902 Rio de Janeiro, Brazil
3. POPs Environmental Consulting, 73527 Schwäbisch Gmünd, Germany
4. Institute of Food Chemistry (170b), University of Hohenheim, DE-70593 Stuttgart, Germany