Characteristics of mineralogical composition and heavy metals in vegetable cultivation land in the Van Noi - Tien Duong (Dong Anh) and Dai Thinh (Me Linh) areas, Ha Noi city
- Authors: Vinh Thi Dang 1*, Giang Khac Nguyen 1, Minh Hong Thi Tran 2, Nhan Thi Tran 1, Quyen Xuan Pham 3
1 Hanoi University of Mining and Geology, Hanoi, Vietnam
2 Hanoi University of Natural Resources and Environment, Hanoi, Vietnam
3 Intergeo Division, Ha Noi, Vietnam
- *Corresponding:dangthivinh @humg.edu.vn
- Received: 3rd-Jan-2022
- Revised: 15th-Apr-2022
- Accepted: 18th-May-2022
- Online: 30th-June-2022
- Section: Geology - Mineral
The green vegetable belt for Hanoi city extended in Thanh Tri, Gia Lam, Dong Anh and Me Linh districts, is providing daily thousands of tons of green vegetables for the city. Previously there were some studies on the distribution of heavy metals in the suburbs of Hanoi, including in the Dong Anh area, but the results were limited. Thus the study of material composition and heavy metal distribution in vegetable lands in the Van Noi - Tien Duong area (Dong Anh) (one of the critical vegetable growing areas in the suburbs of Hanoi) and Dai Thinh area (Me Linh) has been selected to contribute to the scientific basis for the production of safe vegetables for the study area. The authors used traditional research methods (Field trip investigation) and modern methods (X-Ray, ICP-EOS and AAS) to show that the soil developed in these areas is rich in quartz. The soil, therefore, has relatively good ventilation and drainage but still ensures the necessary moisture for plants, suitable for the cultivation of short-term vegetables. At the time of the study, vegetable cultivation land in Tien Duong - Dong Anh and Dai Thinh - Me Linh has generally not been polluted by most the heavy metals, excepting the signs of Pb, Cu pollution at a deficient level in some sites. In addition, vegetable cultivation land in Van Noi - Dong Anh has been polluted with typical heavy metals, such as arsenic (As) and lead (Pb). Measures are needed to minimize and progressively eliminate pollution to ensure safe vegetable production.
Dang, T.V., Nguyen, K. G., (2011), The material composition and environment characteristics of surface sediments in the downstream area of Day river. Scientific - Technica Journal of Mining and Geology. Vol 35, 2011. 93 - 100.
Nguyen, K.G., Le, T.H., (2009), Preliminary results on studying the mineralogical composition of bottom sediments of Thai Binh river System. Scientific - Technical Journal of Mining and Geology. Vol 25,/01 - 2009.27 - 34
Nguyen, K.G., Nguyen, T.T., Dang, T.V., (2009), Preliminary study results of chemical characteristics of heavy metals in bottom sediments in Thai Binh river System. Scientific - Technical Journal of Mining and Geology. Vol 26/4 - 2009.23 - 33
Pham, N.T., Nguyen, D.M., Dinh, V.H., Nguyen, V.T., Ngo, X.M., (2003), Current situation of contamination of heavy metals (Hg, As, Pb, Cd) in soil, surface water and some vegetables in Dong Anh, Ha Noi. Agriculture Sience of Technology Journal.
Pham, V.A. and Nguyen, K.G., (2004), Geochemistry and Ecological Features of sedimentary estuary of Hot river of Tuan Chau area, Ha Long City. Scientific - Technical Journal of Mining and Geology. Vol 5/1 - 2004. 7 - 14.