Abstract
Fifty-three bulk deposition samples were collected at the campus of the University of Brunei Darussalam between April and November 1994 using a funnel-in bottle sampler. The pH and conductivity were determined immediately after collection on aliquots of the sample. Samples were refrigerated at 5 °C for subsequent chemical analysis. Analyses for Cl−, NO3 − and SO4 2− were carried out by means of ion chromatography, while Na+, K+, Ca2+ and Mg2+ were determined by atomic spectroscopy. The recorded pH values were in the range of 4.35 to 6.59. Seventy-seven percent of the samples had pH values below 5.6, demonstrating the occurrence of acidic deposition. The range, mean and standard deviation of measured concentrations are reported. There was very little difference between measurements in filtered and unfiltered samples. Correlation coefficients between pairs of parameters are reported and discussed.
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Radojevic, M., Lim, L.H. A rain acidity study in Brunei Darussalam. Water Air Soil Pollut 85, 2369–2374 (1995). https://doi.org/10.1007/BF01186188
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DOI: https://doi.org/10.1007/BF01186188