- To clarify the fluorine pollution status in groundwater in Khanh Hoa province;
- To assess the impact of fluorine pollution in groundwater on local communities health and propose solutions for mitigation.

In terms of Science , the project has been achieved the following main results after two years of implementation:
- Synthesized and evaluated hydrogeological conditions and groundwater resources in Khanh Hoa province;
- Assessed the present status of fluorine pollution in groundwater with different levels (From polluted level (1mg/l < Flo < 3mg/l) to high polluted level (Flo> 6mg/l) for 04 aquifers in Khanh Hoa province. Established a map of Fluorine pollution in groundwater in Khanh Hoa province, scale 1:200,000. Established fluorine pollution zoning maps in groundwater for Van Ninh, Dien Khanh, Khanh Vinh districts, Ninh Hoa town, and Cam Ranh city, scale 1: 50,000;
- Investigated and evaluated the effects of fluorine pollution on the people’s health in Khanh Hoa province. People who use groundwater with high fluorine concentration have suffered from dental diseases such as yellow teeth and black teeth. The highest rate of people who suffering from severe dental diseases in the province living in Ninh Hoa town;
- Proposed solutions on rational use of water sources and fluorine treatment model using nanometer-sized CeO2 materials based activated carbon in household-scale.

- Investigated and evaluated the current status of fluorine pollution in groundwater in  Khanh Hoa province.
- Investigated and evaluated the impact of fluorine pollution on the health of local communities. Proposed solutions to mitigate the impacts of fluorine pollution in groundwater on the health of local communites. Two main groups of solutions are including rational use of water sources and fluorine treatment model using nanometer-sized CeO2 materials based  activated carbon in household-scale.

- Scientific papers in referred journals (list):
3.    “Fluoride and Arsenate Removal by Adsorption on La2O3 – CeO2/Laterite”. Journal of Nanomaterials Volume 2021, Article ID 9991050, 13 pages.
4.    “Current status assessment of the fluoride pollution in groundwater in Khanh Hoa province”. Journal of Water Resources, ISSN 1859 - 3771. Number 03, Aug – 2021; in Vietnamese.
- Patents (list): Be stored at Institute of Geography-VAST, including:
6.    The full report of the task implementation.
7.    Product 1: Data set on investigating of present status of fluorine pollution in groundwater and the data set on the impact of fluorine pollution on local communities health in Khanh Hoa province;
8.    Product 2: Report and maps on fluorine pollution in groundwater in Khanh Hoa province, scale 1:200,000;
9.    Product 3: Report and map on fluorine pollution zoning maps in groundwater in some districts of Khanh Hoa province, scale 1:50,000;
10.  Product 4: Report of assessment for impacts of fluorine pollution in groundwater on local communites health in Khanh Hoa province and mitigation solutions.