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Peroxide Concentrations in Fog Water at Mountainous Sites in Japan.
- Source :
- Water, Air & Soil Pollution; Aug2001, Vol. 130 Issue 1-4, p1559-1564, 6p
- Publication Year :
- 2001
-
Abstract
- Measurements of peroxide concentrations in fog water were conducted near the summit of Mt. Norikura (altitude, 2770m) in central Japan, and at the midslope of Mt. Oyama (altitude, 680m), southwest of the Kanto Plain. The concentrations of peroxide at Mt. Norikura, far from industrial regions, ranged from 3 to 120 µ M during the summer and early autumn in 1993. The potential capacity for SO<subscript>2</subscript> oxidation appears to be very high near the summit of Mt. Norikura. Analysis of the chemical composition of three-stage size-fractionated fog water samples collected at Mt. Norikura showed that the concentrations of peroxide were apparently independent of droplet size, whereas the concentrations of chemical constituents mainly derived from secondary aerosols and the acidity were higher in smaller droplets. Peroxide concentrations in fog water were low (< 5 µ M) at Mt. Oyama, located near heavy industrial areas, and lower than those in rain water sampled simultaneously (0.2–33 µ M). Especially, peroxide was scarcely detected in strongly acidic fogs (< 0.2 µ M). Peroxide might have been decomposed by SO<subscript>2</subscript> (S(IV)) oxidation in the aqueous-phase. [ABSTRACT FROM AUTHOR]
- Subjects :
- FOG
AIR pollution
PEROXIDES
SEASONS
POLLUTANTS
Subjects
Details
- Language :
- English
- ISSN :
- 00496979
- Volume :
- 130
- Issue :
- 1-4
- Database :
- Complementary Index
- Journal :
- Water, Air & Soil Pollution
- Publication Type :
- Academic Journal
- Accession number :
- 16603302
- Full Text :
- https://doi.org/10.1023/A:1013974728609