1. Full name:     Trinh Thi Tham                           2. Sex: Female

3. Date of birth: 1982, April 22^th                          4. Place of birth: Thanh Hoa Province

5. Admission decision number: No 4050/QĐ-KHTN-CTSV dated on 19/9/2013 by the Rector of VNU University of Science

6. Changes in academic process: None

7. Official thesis title: Assessment of the reduced levels of OCPs, PCBs and PBDEs in sediments and some bivalve species collected estuaries along the coastal areas of Central Vietnam

8. Major: Organic Chemistry                               9. Code: 62440114

10. Supervisors: Assoc. Prof. PhD. Tu Binh Minh, Prof.PhD. Nguyen Duc Hue

11. Summary of the new findings of the thesis

- The Methods of simultaneous analysis of three groups of substances as OCPs, PCBs and PBDEs in sediment samples and biota samples were validated.

- ²¹⁰Pb isotope method was applied to calculate sediment accumulation rate and date the slices of core sediments. For the first time, combination of radioisotope methods and chemical analysis methods was used to assess the distribution, historical trends and inventories of persistent organic pollutants in coastal areas of central Vietnam;

- Residue levels of 03 groups of persistent organic pollutants: OCPs, PCBs and PBDEs in sediment in 06 estuaries from Nghe An to Quang Nam were uniformly investigated. The mean concentrations of OCPs and PCBs in sediments collected from 6 estuaries along the coastal areas from Nghe An to Quang Nam province, central Vietnam varied from 8.99 to 19.8 ng/g dw and 19.7 to 820 ng/g dw, respectively. The averaged levels of PBDEs ranged from 9.81 to 45.1 ng/g dw.

- The bio-accumulation potential of 05 bivalve species (which are considered as bio-indicators for environmental contamination) collected from Quang Binh to Quang Nam, was assessed. The highest value of BAF and BSAF of DDTs and Endosulfane are 1030 and 15, in respective. Among species examined, the BAFs of both OCPs and PCBs in blue mussel were much higher than those in other species.

12. Piratical applicability, if any:

Analytical procedures can be applied to some laboratories in Vietnam. Database of the thesis is useful for environmental agencies working in the field of environmental management to develop solutions for prevention of pollution and protecting human health.

13. Further research directions, if any

Evaluate the pollutant historical trend of other new POPs in core sediments collected from coastal central Vietnam and other regions.

14. Thesis-related publications:

[1] Le Thi Trinh, Trinh Thi Tham, Trinh Thi Thuy (2015), “Determination of organochlorine pesticides in water and sediment at the estuary area of Han River, Da Nang”, Journal of Analytical Sciences, Vol 20 (4/2015), pp. 128

[2] Le Thi Trinh, Trinh Thi Tham, Tu Binh Minh (2015), “Occurrence of polychlorinated biphenyls in water and sediment collected from Cua Dai, Hoi An city, coastal area of Quang Nam Province”, Journal of Analytical Sciences, Vol 20 (4/2015), pp. 143

[3] Pham Thi Ngoc Mai, Nguyen Van Thuong, Trinh Thi Tham, Nguyen Khanh Hoang, Hoang Quoc Anh, Tran Manh Tri, Le Si Hung, Dao Thi Nhung, Vu Duc Nam, Nguyen Thi Minh Hue, Nguyen Thi Anh Huong, Duong Hong Anh, Nguyen Hung Minh, Tu Binh Minh (2015), “Distribution, accumulation profile, and risk assessment of polybrominated diphenyl ethers in sediment from lake and river systems in Hanoi Metropolitan Area, Vietnam”, Environmental Science and Pollution Research, pp. 1-10

[4] Trinh Thi Tham, Tran Manh Tri, Hoang Quoc Anh, Tran Dang Quy, Dang Van Doan, Nguyen Duc Hue, Tu Binh Minh (2016), “Pollution Levels and Distribution chemicals in offshore Marine Sediment from Ha Tinh to Thua Thien – Hue, Vietnam: Spatial Distribution and Depth Profiles”, VNU Journal of Science, Natural Sciences and Technology, Vol 32 (3), pp. 6-11

[5] Trinh Thi Tham, Tran Manh Tri, Hoang Quoc Anh, Tran Dang Quy, Tran Thi Lieu, Nguyen Thanh Lợi, Nguyen Duc Hue, Tu Binh Minh (2016), “Contamination Levels and distribution of Polychlorinated Biphenyls (PCBs) in sediment Collected in offshore Coasts from Nghe An to Thua Thien Hue, Vietnam”, VNU Journal of Science, Natural Sciences and Technology, Vol 32 (3), pp. 240-244

[6] Trinh Thi Tham, Le Thi Trinh, Tu Binh Minh, Nguyen Duc Hue (2016), “Occurrence of Polychlorinated Biphenyls in Water and Sediment collected from Han River Estuary, Da Nang City”, VNU Journal of Science, Natural Sciences and Technology, Vol 32 (4), pp. 1-6,

[7] Tran Manh Tri, Hoang Quoc Anh, Trinh Thi Tham, Tran Van Quy, Masafumi Nakamura, Masayo Nishida, Yasuaki Maeda, Nguyen Quang Long, Luu Van Boi, Tu Binh Minh (2016), ^“Distribution and Depth Profiles of Polychlorinated Dibenzo-p-Dioxins, Polychlorinated Dibenzofurans, and Polychlorinated Biphenyls in Sediment Collected from Offshore Waters of Central Vietnam”, Marine Pollution Bulletin 106, pp. 341-346

[8] Le Thi Trinh, Trinh Thi Tham, Nguyen Duc Hue, Tu Binh Minh (2017), “Assessment of the Bioaccumulation Factors of Organochlorine pesticides in some bivalve species collected from Central coasts of Vietnam”, Vietnam Journal of Chemistry, No 2e55, pp. 16-21.