An assessment of heavy metal focusing on cadmium uptake by food crops and vegetables grown in the Greater Bangkok Metropolitan Region, Thailand | |
| Author | Thach Huynh Thi Thu Trang |
| Call Number | AIT Thesis no.EV-08-39 |
| Subject(s) | Cadmium--Evaluation--Thailand--Bangkok Food crops--Thailand--Bangkok Vegetables--Contamination--Thailand--Bangkok Heavy metals--Physiological effect--Thailand--Bangkok |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Environmental Engineering and Management |
| Publisher | Asian Institute of Technology |
| Abstract | Three heavy metals (copper, cadmium and lead) were determined in three types of vegetables cultivated in three provinces Pathumtthani, Audthaya and Nonthaburi representing Great Bangkok metropolitan Region (GBMR). Similarly, these vegetable samples were also selected from Supermarket and Market. An Inductive Couple Plasma-Atomic Emission Spectrophotometry method was used to estimate and evaluate the levels of these metals concentration in the vegetables, soil, water, manure and chemical fertilizer. The physical and chemical characterizations of the above mentioned materials were conducted to compare the heavy metals concentrations with the similar characteristics of the materials. Heavy metal concentrations in vegetables were compared both in wet and dry season. Moreover, the edible and non-edible parts of the vegetables were also considered for the comparative study and were found significant difference of Cu concentrations in Morning glory. The concentrations of Cu found in edible and non edible parts were 0.38 and 1.10 ug/g respectively. Finally, the contributions of the vegetables to the daily intake of the heavy metals from the vegetables were determined. The health risk assessment was performed based on this experimental data and found that the heavy metals concentrations (Cu, Cd and Pb) in vegetables were within the limit of standard and were safe for the consumptions. |
| Year | 2008 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering and Management (EV) |
| Chairperson(s) | Preeda Pakpian; |
| Examination Committee(s) | Chongrak Polprasert;Thammarat Koottatep; |
| Scholarship Donor(s) | MOET, Vietnam;Asian Institute of Technology Fellowship; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2008 |