1. Full name:     Le Thi Hanh                                                       2. Sex: Female

3. Date of birth: May 10, 1985                                                    4. Place of birth: Thanh Hoa

5. Admission decision number: Decision number 2999/QĐ-ĐHKHTN, dated on 18/8/2016, signed by the Rector of VNU University of Science.

6. Changes in academic process:

7. Official thesis title: Analysis and evaluation the distribution of siloxanes and phthalates in indoor air

8. Major: Analytical Chemistry                            9. Code: 9440112.03

10. Supervisors: Assoc. Prof. Dr. Tu Binh Minh

                           Assoc. Prof. Dr. Tran Manh Tri

11. Summary of the new findings of the thesis

- The high sensitivity gas chromatography tandem mass spectrometry method combined with sampling technique using the low-volumn pumps, quartz filters, and polyurethane foam cylinders were standardized for simultaneous analysis of siloxanes and phthalates in indoor air.

- Initial study on the distributions of siloxanes and phthalates in indoor air from various micro-environments in several northern cities, Vietnam.

- Initial assessment of the exposure risks of siloxanes and phthalates through inhalation for various age groups.

12. Practical applicability, if any:

- The research results provided a standardized method for accurately analyzing siloxanes and phthalates in the air, so it can be a good scientific basis for developing standards for these compound groups. In addition, the study also contributed to providing a modern analysis method what may be applied in intensive laboratories.

- The results on the polluted levels of siloxanes and phthalates in 97 indoor air samples helped environmental management agencies, scientists and society to have more information on the distribution as well as the exposure risks to human health of these compounds.

13. Further research directions, if any:

The contribution of siloxanes and phthalates in the indoor environments depending on various factors such as space, time, temperature and pressure should be considered in the future. Furthermore, the risk assessment of the human exposure to these compounds needs to be studied in the long term.

14. Publications relate to the thesis:

[1] Tri Manh Tran, Hanh Thi Le, Nam Duc Vu, Giang Huong Minh Dang, Tu Binh Minh, Kurunthachalam Kannan (2017). Cyclic and linear siloxanes in indoor air from several northern cities in Vietnam: Levels, spatial distribution and human exposure. Chemosphere 184, 1117-1124.

[2] Tri Manh Tran, Hanh Thi Le, Tu Binh Minh, Kurunthachalam Kannan (2017). Occurrence of phthalate diesters in indoor air from several Northern cities in Vietnam, and its implication for human exposure. Science of the Total Environment 601-602, 1695-1701.

[3] Le Thi Hanh, Nguyen Le Hoai Linh, Vu Thi Dung, Le Minh Thuy, Nguyen Hung Thai, Tu Binh Minh, Tran Manh Tri (2017). Study on determination method of phthalates from indoor air by gas chromatograph tandem mass spectrometry technique (GC/MS). VNU Journal of Science: Natural Sciences and Technology, 33(2), 17-23.

[4] Le Thi Hanh, Le Minh Thuy, Le Van Chieu, Dang Minh Huong Giang, Tran Manh Tri, Tu Binh Minh (2017). Distribution and exposure assessment through inhalation and dermal pathways to phthalates in indoor air collected from Hanoi, Vietnam. Vietnam Journal of Science and Technology, 55 (4C), 319-325.

[5] Le Thi Hanh, Ngo Thi Tuyen Yen, Vu Thi Dung, Tran Van Binh, Le Van Chieu, Le Truong Giang, Nguyen Thị Xuyen, Tu Binh Minh, Tran Manh Tri (2017). Distribution and risk exposure of phthalates from indoor air in Hanoi, Vietnam. Vietnam Journal of chemistry, 55 (5E1,2), 279-283.

[6] Le Thi Hanh, Vu Thi Thuy Duong, Vu Đuc Nam, Le Van Chieu, Tu Binh Minh, Tran Manh Tri (2017). Distribution and risk exposure of siloxanes from indoor air in Hanoi, Vietnam. Vietnam Journal of chemistry, 55 (5E3,4), 85-89.

[7] Le Thi Hanh, Vu Thi Dung, Vu Thi Thuy Duong, Tu Binh Minh, Vu Duc Nam, Pham Thi Phuong Thao, Tran Manh Tri (2017). Study on development of determination method of octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane in indoor air by gas chromatography tandem mass spectrometry (GC-MS). Analytica Vietnam Conference 2017. Hanoi, march 29-30, 125-130.

[8] Le Thi Hanh, Tu Binh Minh, Tran Manh Tri (2018). The constant of kp and kow of phthalates in indoor air in Vietnam. VNU Journal of Science: Natural Sciences and Technology, 34 (2), 104-111.