Reduced sulfur compounds in ambient air surrounding an industrial region in Korea.
The atmospheric concentrations of several reduced sulfur compounds (RSCs) including H(2)S, CH(3)SH, DMS, CS(2), and DMDS were measured concurrently from a series of field campaigns covering multiple locations in the surroundings of a large industrial region (August 2004 to September 2005). These field studies have been designed and undertaken to inspect the concentrations of RSCs in ambient air. The RSC concentrations were found to occur in a highly variable range. H(2)S (1.06 +/- 2.07 ppb) was found to be the most abundant RSC followed by CS(2) (0.84 +/- 0.54 ppb), DMDS (0.36 +/- 1.21 ppb), DMS (0.24 +/- 0.83 ppb), and CH(3)SH (0.11 +/- 0.23 ppb). The RSC levels measured at the study area were comparable to those observed previously from other polluted environmental settings. When these RSC data were examined further in terms of spatial (industrial vs. non-industrial sites) and seasonal (summer vs. winter seasons) grouping schemes, differences in their concentration levels were statistically insignificant in most cases. In contrast, there were fairly strong variations in temporal patterns over a diurnal cycle. If these RSC concentration data were converted to diagnose the malodor strengths, their effects were in most cases insignificant with minor contribution towards odor nuisances.
Pal
Raktim
R
Department of Earth and Environmental Sciences, Sejong University, Seoul 143-747, South Korea.
Kim
Ki-Hyun
KH
Jeon
Eui-Chan
EC
Song
Sang-Keun
SK
Shon
Zang-Ho
ZH
Park
Shin-Young
SY
Lee
Ki-Han
KH
Hwang
Sun-Jin
SJ
Oh
Jong-Min
JM
Koo
Youn-Seo
YS
D000388:Air / Q000032:analysis*; D000393:Air Pollutants / Q000032:analysis*; D004784:Environmental Monitoring; D006801:Humans; D007220:Industrial Waste; D007221:Industry; D007723:Korea; D009812:Odorants; D010084:Oxidation-Reduction; D012621:Seasons; D013457:Sulfur Compounds / Q000032:analysis*
D000393:Air Pollutants; D007220:Industrial Waste; D013457:Sulfur Compounds