Composition and distribution of surfactants around Lake Chini,Malaysia |
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Authors: | Mohd Talib Latif Lim Wanfi Norfazrin Mohd Hanif Razarul Naim Roslan Masni Mohd Ali Idris Mushrifah |
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Institution: | (1) School of Biosciences, Mahatma Gandhi University, Kottayam, Kerala, India; |
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Abstract: | This study aims to determine the composition of surfactants in the lake surface microlayer, rainwater, and atmospheric aerosols
in the area surrounding Lake Chini, Pahang. Surfactants in the lake surface microlayer were taken from seven different stations
around the lake, while samples of rainwater were taken from five different sampling stations. The samples of atmospheric aerosols
were collected from the Lake Chini Research Centre which is in close proximity to the lake. The colorimetric analysis method
was used to determine the composition and concentration of anionic surfactants as methylene blue active substances (MBAS)
and cationic surfactants as disulphine blue active substances (DBAS). The concentration of anionic surfactants, as MBAS, in
the surface microlayer ranged between 0.08 to 0.23 μmol L − 1, while the range of concentration of cationic surfactants as DBAS ranged from 0.09 to 0.11 μmol L − 1. The concentration of MBAS was higher in rainwater when compared to surfactants in the lake surface microlayer. The high
concentration of surfactants in the fine mode of atmospheric aerosols suggests that natural and anthropogenic sources of surfactants
contribute to the atmospheric surfactants. |
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Keywords: | |
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