東京都狛江市におけるPM<SUB>2.5</SUB>質量濃度と無機イオン成分の経年変化

• 速水 洋

  電力中央研究所環境科学研究所

• 藤田 慎一

  電力中央研究所環境科学研究所

書誌事項

タイトル別名

• Interannual Variability in PM<SUB>2.5</SUB> Mass and Inorganic Ionic Components Measured in Komae, Tokyo
• 東京都狛江市におけるPM2.5質量濃度と無機イオン成分の経年変化
• トウキョウト コマエシ ニ オケル PM2 5 シツリョウ ノウド ト ムキ イオン セイブン ノ ケイネン ヘンカ

抄録

Concentrations of PM_2.5 mass and inorganic ionic components measured in Komae, Tokyo, from FY1998 to FY2005 are analyzed for studying the interannual variability. It is found that the mass concentration tends to decrease annually, and this tendency is pronounced in winter. It is considered from the comparisons with other studies in South Kanto that the decreasing tendency is a relatively large-scale phenomenon, and the PM_2.5 mass concentration is being uniformed in the area.<BR> Inorganic ionic species do not show such decreasing tendency in general. As a result, concentration ratios of secondary inorganic aerosol (SIA) to PM_2.5 mass tend to increase. This could lead to the uniformity in PM_2.5 mass concentration. The SIA concentration is high, very close to the US Air Quality Standard for PM_2.5. Therefore, the SIA should be more concerned in order to reduce the PM_2.5 mass concentration.

収録刊行物

• エアロゾル研究

  エアロゾル研究 21 (4), 354-358, 2006

  日本エアロゾル学会

キーワード

• PM<SUB>2.5</SUB>
• Secondary Inorganic Aerosol
• TEOM
• Denuded Filter-Pack Sampling
• Trend

詳細情報

• CRID: 1390282679318827648
• NII論文ID: 10018792435
• NII書誌ID: AN10041511
• DOI: 10.11203/jar.21.354
• COI: 1:CAS:528:DC%2BD28XhtlCqsb%2FI
• ISSN: 1881543X
• ISSN: 09122834
• NDL書誌ID: 8619356
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8619356
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可