Downloads
Abstract
Trace metals were a dangerous composition in airborne particulate matter, which may cause hazardous diseases in human. Accurately determination of metal concentration is significant. The analysis needs to have high precision and accuracy. Therefore, the stripping voltammetry is a appropriate method for determination of trace metals, including Zn, Cd, Pb, Cu, Co, Ni. Various experimental parameters were studied and optimized. The detection limits of these metal ions were 3,47, 0,34, 0,59, 0,68, 2,51, 0,06 ppb for Zn(II), Cd(II), Pb(II), Cu(II), Ni(II) and Co(II), respectively, with very good accuracy (standard deviation is below 5%). Interference from coexisting ions was successfully investigated. The sample was digested by microwave oven with the recoveries from 96,7% to 106%. The great advantage of method is the simplicity, selectivity, and high sensitivity. The collection of particulate matter was performed from march to june, 2009, at different locations, which represent for residential, traffic and industrial areas. Metal concentrations spanned the range, the lowest was 0,06 ng/m3 for Co and the highest was 505 ng/m3 for Zn. Generaly, lead concentration was lower than TCVN 5937:2005 and range on 1,53-26,84 ng/ m3.
Issue: Vol 14 No 4 (2011)
Page No.: 29-40
Published: Dec 30, 2011
Section: Sciences of Earth and Environment - Research article
DOI: https://doi.org/10.32508/stdj.v14i4.2016
Download PDF = 830 times
Total = 830 times
Most read articles by the same author(s)
- Huy Huu Duong, Thu Huong Minh Dang, Hien Thi To, Partition of the carbonyl compounds between the indoor and outdoor air at residental areas in District 5, Ho Chi Minh City , Science and Technology Development Journal: Vol 19 No 2 (2016)
- Phuong Nu Thanh Ton, Giang Hoang Le, Hien Thi To, Takenaka Norimichi, Evaluating brake specific fuel consumption and gas emissions from palm biodiesel fuel used in diesel generator , Science and Technology Development Journal: Vol 18 No 2 (2015)
- Phuong Nu Thanh Ton, Vinh Xuan Le, Hien Thi To, Takenaka Norimichi, Characteristics of polycyclic aromatic hydrocarbons emissions of diesel fuel from diesel generator , Science and Technology Development Journal: Vol 16 No 3 (2013)
- Hien Thi To, An Van Huynh, Size distribution and resources of pahs in atmospheric particulate matters in Ho Chi Minh city , Science and Technology Development Journal: Vol 16 No 3 (2013)
- Hien Thi To, Nguyen Thao Nguyen, Huy Huu Duong, Construction a process to measurement the indoor radon concentration , Science and Technology Development Journal: Vol 16 No 3 (2013)
- Nguyen Nhu Phan, Hien Thi To, The fluoride contamination in groundwater and assessment of fluoride exposure for residents in Tay Son, Binh Dinh , Science and Technology Development Journal: Vol 16 No 3 (2013)
- Phu Ly Sy Nguyen, Nguyen Duc Do, Hien Thi To, Investigation of pesticide residues in surface water in some areas of agricultural production at Ho Chi Minh city , Science and Technology Development Journal: Vol 16 No 3 (2013)
- Anh Thi Kim Nguyen, Mi Thi Tra Le, Phu Ly Sy Nguyen, Nga Diep Yen Dang, Hien Thi To, Investigating the species of microorganisms from activated sludge for handling phenol contaminated-air streams in biotrickling filter , Science and Technology Development Journal: Vol 16 No 3 (2013)
- Chi Doan Thien Nguyen, Hien Thi To, Evaluating the applicability of a low-cost sensor for measuring PM2.5 concentration in Ho Chi Minh city, Viet Nam , Science and Technology Development Journal: Vol 22 No 3 (2019)
- Phuong Nu Thanh Ton, Hai Viet Le, Hien Thi To, BIODIESEL FROM JATROPHA SEED OIL: SYNTHESIS AND EVALUATE EMISSION FROM BIODIESEL FUEL IN DIESEL ENGINE , Science and Technology Development Journal: Vol 14 No 4 (2011)