Please use this identifier to cite or link to this item: https://doi.org/10.1023/A:1013801805621
Title: Chemical and statistical analysis of precipitation in Singapore
Authors: Balasubramanian, R. 
Victor, T. 
Chun, N.
Keywords: Acid rain
Air pollution
Chemical composition
Factor analysis
Precipitation
Issue Date: 2001
Citation: Balasubramanian, R., Victor, T., Chun, N. (2001). Chemical and statistical analysis of precipitation in Singapore. Water, Air, and Soil Pollution 130 (1-4 II) : 451-456. ScholarBank@NUS Repository. https://doi.org/10.1023/A:1013801805621
Abstract: The results of chemical analyses of precipitation samples collected in Singapore between August 1997 and July 1998 are presented. Major inorganic and organic ions were determined in 169 rain samples collected using an automated wet-only sampler. The daily sample pH values ranged from 3.49 to 6.54 with a volume-weighted mean of 4.50, and about 88% of the samples had pH values less than 5.0. Nss-SO4 2- accounted for about 53% of the sum of anions in rain, whereas chloride, nitrate, formate, and acetate accounted for the remainder. Rain chemistry data were analyzed using principal component analysis to find possible sources of the measured chemical species. Three components that accounted for 83.5% of the total variance were extracted: sea-spray (Na+, Cl- and and Mg2+) and soil particles (Ca2+ and K+), acid factor (nss-SO4 2-, NO3 -, NH4 +, and H+), and biomass burning (HCOO- and CH3COO-).
Source Title: Water, Air, and Soil Pollution
URI: http://scholarbank.nus.edu.sg/handle/10635/91891
ISSN: 00496979
DOI: 10.1023/A:1013801805621
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

63
checked on Jul 17, 2018

WEB OF SCIENCETM
Citations

57
checked on Jun 27, 2018

Page view(s)

51
checked on Jun 29, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.