Temporal And Spatial Distribution Of Mutagenic
Index In PM10 Collected At Bangkok, Thailand
Author(s)
S. Pongpiachan, C. Choochuay & C. Kositanon
Abstract
Temporal and spatial distributions of mutagenicity index (MI) extracted from
PM10 samples collected during 2006 from seven monitoring stations in an urban
residential area of Bangkok were carefully investigated. During the dry season
(i.e. November–February), MI values of Salmonella typhimurium TA 98 was
higher than those collected during the wet season (i.e. May–July). The addition
of S9 mixture resulted in a 9.8% increase in total mean of the bacterial
mutagenicity index. For S. typhimurium TA 100 without S9 mix, the total mean
of mutagenicity index was 7.4% higher than those of S. typhimurium TA 98 at
the same condition. The addition of S9 mix was also 9.1% increased in the
mutagenicity index of S. typhimurium TA 100. The correlation of mutagenicity
index between S9 mix added and non-added of the S. typhimurium TA 98 was
higher than S. typhimurium TA100. All studied stations showed MI values lower
than the safety level of 2.0.
Keywords: PM10, PAH, mutagenicity index, Bangkok, Thailand.
Keywords
PM10, PAH, mutagenicity index, Bangkok, Thailand
Related Book
Other papers in this volume
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