Cao Thi Thu Trang, Do Cong Thung, Le Van Nam, Pham Thi Kha, Nguyen Van Bach, Dinh Hai Ngoc

Main Article Content


With nearly 3,000 large and small islands, the islands and archipelagos of Vietnam have outstanding features in terms biodiversity and geology. The islands are mainly formed from carbonate (limestone), intrusive igneous rock, sedimentary and volcanic rocks, in which limestone islands predominate, distributed mainly in the Gulf of Tonkin. This paper presents the results of researches and assessments on sea water quality of Vietnam's typical limestone islands and archipelagoes through the 2017-2018 surveys. The research results show that although the water quality around of limestone and archipelago area of Vietnam is safety for the development of aquatic life, an increase in pollutants concentration in water has been recorded when compared to previous research results. The research results supplement the data set of sea water quality in limestone areas that defining the characteristics of marine biodiversity.

Keywords: limestone island, water quality, pollutants.


[1] Le Duc An, (edited), 1995. Assessment of natural and socio-economic conditions of coastal island system of Viet Nam in marine socio-economic development strategy. Report of National project (KT-03-12), 192 p, Ha Noi (in Vietnamese).
[2] Do Cong Thung, 2003. Study on biodiversity of Lan Ha Bay (Hai Phong - Quang Ninh) for aquaculture and tourism development. Results of scientific research and technology deployment of Vietnam Academy of Science and Technology (in Vietnamese).
[3] Do Cong Thung, 2005. Scientific basis for the planning and management of Cat Ba marine protected area. Proceedings of the national conference on environmental protection and fisheries resources (in Vietnamese)
[4] Do Cong Thung, 2012. Documents submitted to UNESCO for recognition of Cat Ba - Long Chau archipelagos as a World Natural Heritage site for biodiversity. Final report (in Vietnamese).
[5] Tran Duc Thanh, Do Dinh Chien, Tran Anh Tu, 2007. Building a pollutants transport model for Ha Long - Bai Tu Long Bay. Scientific research project of Quang Ninh province, implemented in 2006-2007 (in Vietnamese).
[6] Tran Duc Thanh, Cao Thi Thu Trang, Vu Duy Vinh, 2010. Studying and assessing environmental carrying capacity of Ha Long - Bai Tu Long bay, and proposing solutions for management and protection of the area. Scientific research project of Quang Ninh province, implemented in 2008-2009 (in Vietnamese).
[7] Cao Thi Thu Trang, 2004. Pollutants present in the Waters of Ha Long Bay. Colletion of Marine Resources and Environment, volume IX. Scientific and Technical Publishing House, Ha Noi, p. 143-154 (in Vietnamese)
[8] Ministry of Science, Technology and Environment, 1995. TCVN 5998-1995 (ISO 5667-9:1992)-Water quality-Sampling- Guidance on sampling from seawater (in Vietnamese).
[9] Ministry of Science and Technology, 2016. TCVN 6663-3:2016 (ISO 5667-3:2012) - Water quality - Sampling -Part 3: Preservation and handling of water samples (in Vietnamese)
[10] APHA, 2002. Standard Methods for the Examination of Water and Wastewater, 20th ed. Washington, DC 20005, 2002.
[11] Ministry of Natural Resources and Environment, 2015a. National technical regulation on marine water quality (QCVN 10-MT:2015/BTNMT) (in Vietnamese).
[12] Ministry of Natural Resources and Environment, 2015b. National technical regulation on surface water quality (QCVN 08-MT:2015/BTNMT) (in Vietnamese)
[13] Australian Government/ASEAN/AMSAT, 2008. ASEAN Marine Water Quality Management Guidelines and Monitoring Manual. Printed in Australia by New Millennium Pty Ltd. Cover artwork, 444p, 16-17.
[14] Jheng Jie Jiang, Chon Lin Lee, Meng Der Fang, Kenneth G. Boyd, Stuart W. Gibb, 2015. Source Apportionment and Risk Assessment of Emerging Contaminants: An Approach of Pharmaco-Signature in Water Systems. PLOS ONE 10(5): e0129410.
[15] Do Cong Thung, Nguyen Dang Ngai, Nguyen Van Sinh, Nguyen Van Quan, Dam Duc Tien, Chu Van Thuoc, Cao Thi Thu Trang, 2018. Biodiversity of limestone island and archipelagos areas in Northeast coast of Viet Nam, orientation of sustainable use solutions. Publishing House of Natural Science and Technology, Ha Noi 2018, 355 pp, 56-57 (in Vietnamese).