Trend in Lead Content of Airborne Particles and Mass of PM10 in the Metropolitan Bangkok

Cheevaporn, Voravit; Norramit, Poonsup; Tanaka, Keiichi

doi:10.1248/jhs.50.86

Cited by 4 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nowadays, Bangkok and the whole country has no leaded gasoline. The previous studies indicated a significant reduction of lead content in air particulates of the Bangkok atmosphere 16,17 . For this reason, there was no significant difference in Pb concentration at all the sampling and background sites.…”

Section: Resultsmentioning

confidence: 65%

See 1 more Smart Citation

Leaves of Orange Jasmine (Murraya paniculata) as Indicators of Airborne Heavy Metal in Bangkok, Thailand

Titseesang

Wood

Panich

2008

Annals of the New York Academy of Sciences

View full text Add to dashboard Cite

Orange jasmine (Murraya paniculata) leaves were collected from three different sites in the area of Bangkok and in a remote area as a control site. The leaf samples were digested and the concentrations of Cu, Fe, Pb, Mn, Ni, Cr, and Zn were then quantified by using inductively coupled plasma-atomic emission spectrometry (ICP-AES). All three Bangkok sites were polluted with heavy metals compared with the background site. Fe was found as the highest mean concentration of the metals studied, while Pb was the lowest. There was a high correlation coefficient between metals Cu-Mn, Cu-Zn, Cu-Pb, and Mn-Zn. However, Fe was not correlated with other metals. There was no significant difference in Pb between sites. The significant difference in other metals found in the study could be attributed to different anthropogenic activities between sites. The principal-component analysis (PCA) identified two factors according to the sources of metals making up the anthropogenic (traffic) and natural (soil) sources. Traffic emission was found to be the main source of metal pollution in the atmosphere of Bangkok.

show abstract

Section: Resultsmentioning

confidence: 65%

“…The previous studies indicated a significant reduction of lead content in air particulates of the Bangkok atmosphere. 16,17 For this reason, there was no significant difference in Pb concentration at all the sampling and background sites. The level of Pb found at all sites could be a background level.…”

Section: Analysis Of Variance Of Metalsmentioning

confidence: 92%