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Volume 32, Issue 2
Displaying 1-18 of 18 articles from this issue
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Yoichi ICHIKAWA2003 Volume 32 Issue 2 Pages 81-83
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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[in Japanese], [in Japanese]2003 Volume 32 Issue 2 Pages 84-88
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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[in Japanese]2003 Volume 32 Issue 2 Pages 89-93
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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[in Japanese], [in Japanese]2003 Volume 32 Issue 2 Pages 94-97
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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Haruki WATANABE, Masanori WAKAYAMA2003 Volume 32 Issue 2 Pages 98-101
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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[in Japanese], [in Japanese]2003 Volume 32 Issue 2 Pages 102-104
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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[in Japanese]2003 Volume 32 Issue 2 Pages 105-108
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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[in Japanese]2003 Volume 32 Issue 2 Pages 109-115
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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Isao FUKUNAGA2003 Volume 32 Issue 2 Pages 116
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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[in Japanese]2003 Volume 32 Issue 2 Pages 117-119
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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[in Japanese]2003 Volume 32 Issue 2 Pages 120-123
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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[in Japanese]2003 Volume 32 Issue 2 Pages 124-129
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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[in Japanese]2003 Volume 32 Issue 2 Pages 130-132
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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Tutae SEBAYASHI2003 Volume 32 Issue 2 Pages 133-143
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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Joji FUKUYAMA2003 Volume 32 Issue 2 Pages 144-152
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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Susumu KATO, Seiji IWASAKI, Hideki KOKUBU, Masami FURUUCHI, Mana AMORK ...2003 Volume 32 Issue 2 Pages 153-162
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
JOURNAL FREE ACCESSThe aerosol of urban 4-sites (Jankasem, Dindaeng, Somdet Chaopuraya and Ratburana) in Bangkok was collected by high volume air sampler at August, 2001 (wet season) and January, 2002 (dry season) . The concentrations of dry season to TSP, PM10, NO2and SO2, were two times as large as wet one due to wash out effect in wet season. Moreover, Ca2+and NH4+concentrations dry season were higher than wet season in water soluble cations. The aerosol acidity was controlled by NO3/nss-SO4, this ratio (0.69) at dry season was greater than wet season (0.37) . On contrast, NH4/Ca which controlled neutralization capacity in the aerosol, major control factor was Ca2+. In reflecting prevailing wind of Bangkok in both season, Cl/Na (equivalent) was close to composition sea-salt-particle (1.18) at wet season and far from dry one. At January 19 and 25 when both high NO3-and SO42-concentration were detected with low visibility, since there were intensive traffic jams in Bangkok, after this events, relatively high concentration of C2O42-were detected in the aerosol. Among heavy metals, the concentration of Pb was extremely low and below WHO long term standard (0.5-1.0μg/m3) . TSP was strongly correlated with Mn, Fe, K and Ca. And these elements were major components of the soil. The concentration of V and Ni were low because there were no large oil-combustive stationary sources in this area. By the application of enrichment factor to the detected elements, Zn, Pb, NO3-N, SO4-S and TC in the aerosols were come from anthropogenic sources. The concentration of PAH was highest at Dindaeng where was intensive traffic density. Associated these facts, the concentration of total carbon (TC) was fluctuated from 20-30% of TSP and observed highest concentration at Dindaeng.View full abstractDownload PDF (1335K) -
2003 Volume 32 Issue 2 Pages 162
Published: 2003
Released on J-STAGE: March 18, 2010
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[in Japanese]2003 Volume 32 Issue 2 Pages 163-165
Published: February 20, 2003
Released on J-STAGE: March 18, 2010
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