Dr. R. Percival, University of Maryland, Maryland, USA

Dr. M. Makhdoum, University of Tehran, Tehran, Iran

Dr. A. Torabian, Graduate Faculty of Environment, University of Tehran, P. O. Box 14155-6135, Tehran, Iran

Department of Chemistry, Central University New Delhi, India, Specialty: EnvironmentalChemistry

Dr. D. Lawler, University of Birmingham, Birmingham, UK

Dr. O. Shumilov, Institute of North Industrial Problems, Murmansk, Russia

Dr. R. Shankar, Mangalore University, Karnataka, India

Dr. F. Ghazban, Graduate Faculty of Environment, University of Tehran, P. O. Box 14155-135, Tehran, Iran

Dr. N. Mehrdadi, Graduate Faculty of Environment, University of Tehran, P. O. Box 14155-6135, Tehran,Iran

Dr. Y. Hojjat, Tarbiat Modares University, Tehran, Iran

Dr. M. Mazaheri, Biotechnology Department, Iranian Research Organization for Science & Technology, Tehran, Iran

Dr. H. Rashedi, Faculty of Chemical Engineering, University of Tehran, Tehran, Ira