| | | Sea to Sea | Saudi Arabia | October 9-12, 1995 | Participant | |
| | Abu-Hilal, A.H. | Workshop on Oceanographic Inputs to Integrated Coastal Zone Management in the Red Sea and Gulf of Aden. IOC/UNEP/ PERSGA/ACOPS | Jeddah, Saudi Arabia | October 8, 1995. | Lecturer | |
| | | Fifth General Body Meeting of INOC | Izmir-Turkey | October 223-29, 1997. | Participant | |
| | | Workshop on Environmental Education and Case Studies | Jordan Environment Society and Fredrich Nauman Corporation | Nov. 19-23, 1995. | Participant | |
| | Abu-Hilal, A.H. | Workshop on Impact of War on Development and Environment | Jordan Environment Society and Fredrich Nauman Corporation | May 24, 1995 | Lecturer | |
| | | Twenty-Five Years Research in the Gulf of Aqaba - Essen University Germany | Marine Science Station - Jordan | June 1996 | Participant | |
| | | Jordan National Specialized Committee on Designing Pollution Monitoring System for Jordan | The Higher Council for Science and Technology- Amman -Jordan | July, 1997. | Participant | |
| | | Sixth General Body Meeting of INOC | Izmir, Turkey | July 2000 | Participant | |
| | | Scientific Steering Committee of Red Sea Program | Taba- Egypt | July 15-16, 1996. | Participant | |
| | Abu-Hilal, A.H. | Workshop on Environmental Education. Jordan Environment Society and Fredrich Nauman Corporation | Main-Jordan | December, 3-6,1996. | Lecturer | |
| | | National Committee for Putting Environmental Standards | The Higher Council for Science and Technology. Amman-Jordan | April 27, 1997. | Participant | |
| | Abu-Hilal, A.H. | 3rd Workshop of the Arab Regional Ecotechnie Network (AREN). “Education for Sustainable Development” | Rabat | April 21 – 25, 2001. | Lecturer | |
| | Abu-Hilal, A.H. and Abbas, J.A. | 3rd Workshop of the Arab Regional Ecotechnie Network (AREN). “Education for Sustainable Development” | Rabat | April 21 – 25, 2001 | Lecturer | |
| | Abu-Hilal, A.H. | Seminar “Scientific Research and Society”. | Yarmouk University, Irbid- Jordan | April 2008. | Lecturer | |
| | Abu-Hilal, A.H. | The State of Tourism in Bahrain and Future Prospects | Manama, Bahrain | 6-7 January 2001 | Lecturer | |
| | Abu-Hilal, A.H. | UNEP Workshop on Integrated coastal Management: Control of Pollution from Land Based activities | Amman, Jordan | 5-7 April, 2004 | Lecturer | |
| | Abu-Hilal, A.H. | UNEP Workshop on Integrated coastal Management: Control of Pollution from Land Based activities | Amman, Jordan | 5-7 April, 2004 | Lecturer | |
| | Abu-Hilal, A.H. | The Scientific Conference of Oceanography Departments in Arab Universities | Aqaba, Jordan. | 5 - 7 December, 1985 | Lecturer | |
| | Abu-Hilal, A.H. and Zibdeh, M. | Workshop MED 2000. Education, Research and Technology for Fisheries and Aquaculture in the Eastern and Southern Mediterranean | Izmir, Turkey | 4-6 July, 2000 | Lecturer | |
| | | The Indian Scientific Congress, Seventieth Session | Sri Venkatewara University, Tirupati, India. | 3-8 January 1983 | Participant | |
| | Abu-Hilal, A.H. | 28th Pacem in Maribus Conference and Workshop on “Subtropical to tropical seas, with particular consideration for the needs of developing countries | Hamburg, Germany | 3-6 December 2000 | Lecturer | |
| | Abu-Hilal, A.H. | Conference on the Importance of Scientific Research for The Private and Public Sectors and Increase of their Productivity | Yarmouk University, Irbid, Jordan | 30 May 2006. | Lecturer | |
| | Abu-Hilal, A.H. | International Conference on Rapid Urbanization and Land Use Conflicts in Coastal Cities. | Izmir, Turkey | 30 0ctober- 01November 2007 | Lecturer | |
| | Abu-Hilal, A.H. | Our Marine Environment is a Renewable Natural Resource | Third National Day of Bahrain, on the Protection of Wildlife | 27th February 2001. | Lecturer | |
| | Abu-Hilal, A.H. | The First Quest Conference: Quest 2002 for the Middle East and North Africa (Qatar United for the Environment, Science and Tehcnology | Doha – Qatar | 27 – 30 January 2002. | Lecturer | |
| | Abu-Hilal, A.H. | International Ecotechnie Chairs Workshop, UNESCO-Cousteau Ecotechnie Programme (UCEP). | Paris, France | 25 – 27 March 2002. | Lecturer | |
| | | Scientific Committee on Problems of the Environment (SCOPE) of the International Council for Science – ICSU XIth General Assembly and Scientific Symposia. | Bremen - Germany | 24 – 28 September 2001. | Participant | |
| | | UNESCO Meeting on Development of Marine Sciences in Arab Universities | Alexandria, Egypt | 24 - 27 June, 1985 | Participant | |
| | Abu-Hilal, A.H. | Youth and Environment Conference/ A Sector in the National Strategy for Youth (Jordan) | Amman, Jordan | 22 December 2005 | Lecturer | |
| | Abu-Hilal, A.H. | Symposium / Workshop on Marine Chemistry in the Arab Region | Suez, Egypt | 20-23 April, 1990 | Lecturer | |
| | Abu-Hilal, A.H. | Middle Eastern Biodiversity Congress. Middle Eastern Biodiversity Network | Aqaba, Jordan | 20-23 0ctober2008 | Lecturer | |
| | | Regional Training Course on Beach Water, Pools, Water Quality Guidelines and Surveillance. WHO, CEHA Office | Amman, Jordan | 20-21 June 2005. | Participant | |
| | | International Symposium on Science and Technology: A New Vision for Bahrain, Ministry of Education, The Kingdom of Bahrain and UNESCO. | Bahrain | 20 – 22 April 2002. | Participant | |
| | Abu-Hilal, A.H | Inclusion of Environmental Aspects in Teaching Courses for School Students- Ministry of Education | Yarmouk University, Irbid – Jordan | 1988 | Lecturer | |
| | | Planning Meeting on the Development of a UNEP Module for the Assessment of the Coastal and Marine Environment. | Nairobi, Kenya | 19-21 November 2003. | Participant | |
| | Abu-Hilal, A.H. | Jordan Third Environmental Conference on Resources, Environment, and Sustainable Development | Irbid, Jordan | 14-15 December, 2004 | Lecturer | |
| | | Youth and Environment Workshop | Al Ahliyya Amman University. Amman, Jordan | 13 July 2005 | Participant | |
| | | Man and the Ocean Resources and Development. "Ocean Projects | Tunisia | 12 -14 May, 1982 | Participant | |
| | Abu-Hilal, A.H. | The Environmental Education Workshop-UNESCO-Yarmouk University | Yarmouk University, Irbid, Jordan | 10-15 October 1987 | Lecturer | |
| | | Planning for Scientific Research Programmes in the Marine Science Station | Aqaba, Jordan | 10-12 December, 1986 | Participant | |
| | Abu-Hilal, A.H. | The Ecological and Social Systems in the countries of the Gulf Cooperation Council | Al- Ain-UAE. | 10 -12 March 1990 | Lecturer | |
| | Abu-Hilal, A.H. | Meeting of Experts on Development of Marine Sciences in Arab Universities | Aqaba, Jordan | 1 - 5 December 1985 | Lecturer | |