Please use this identifier to cite or link to this item:
|Title:||Measurement of major organic acids in rainwater in Southeast Asia during burning and non-burning periods|
|Citation:||Zhong, Z.C.,Victor, T.,Balasubramanian, R. (2001). Measurement of major organic acids in rainwater in Southeast Asia during burning and non-burning periods. Water, Air, and Soil Pollution 130 (1-4 II) : 457-462. ScholarBank@NUS Repository. https://doi.org/10.1023/A:1013853822459|
|Abstract:||Rainwater samples were collected in Singapore from August to December 1997 using a wet-only collector. Major organic acids were analyzed in all collected samples, using Ion Chromatography, with concentrations ranging from 1.4 to 105.6 μeq/l (mean = 17.6 μeq/l) for formate and from 1.7 to 62.8 μeq/l (mean = 16.7 μeq/l) for acetate, respectively. Elevated concentrations of both formate and acetate were observed during the months of September and October when the biomass burning impacted air masses originating from Indonesia had arrived at Singapore and prevailed there. The formate to acetate ratio was greater than 1 in biomass burning plumes suggesting that formic acid was likely produced in the atmosphere in addition to its direct emission from fires. Both formate and acetate together accounted for as much as 68 % of unneutralized total acidity in rain during the burning period. Our results suggest that biomass burning is an important source of HCOOH and CH3COOH to the troposphere over Southeast Asia.|
|Source Title:||Water, Air, and Soil Pollution|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Oct 15, 2018
checked on Oct 19, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.