• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2004 Fiscal Year Final Research Report Summary

Risk estimation from urban air pollution based on Diesel Exhaust Partide (DEP) measurement

Research Project

Project/Area Number 15560468
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Civil and environmental engineering
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

MURAO Naoto  Hokkaido Univ., Grad.School of Eng., Asso.Prof., 大学院・工学研究科, 助教授 (00190869)

Co-Investigator(Kenkyū-buntansha) OHTA Sachio  Hokkaido Univ., Grad.School of Eng., Prof., 大学院・工学研究科, 教授 (00100058)
YAMAGATA Sadamu  Hokkaido Univ., Grad.School of Eng., Inst., 大学院・工学研究科, 助手 (80220242)
Project Period (FY) 2003 – 2004
KeywordsUrban air pollution / Carcinozenesis risk / Diesel Exhaust / DEP / Absorption Photometer / Black Carbon
Research Abstract

Air pollution problems by suspended particulate matter (SPM) are still serious in metropolitan areas in Japan. Especially, health (carcinogenesis) risk from diesel exhaust particles (DEP) is considered to be significant. The purpose of this research is to (1)conduct long-term black carbon (major component of DEP) field measurements using a small absorption photometer developed by our group, (2)evaluate risks and source contributions using the measurement results, and (3)show how the introduction of the low-emission vehicle can reduce urban air pollution.
In 2003, after examining various measurement methods, we started measurements at ten air monitoring stations in Sapporo. The measured components are black carbon, volatile organic compounds, polynuclear aromatic hydrocarbons, heavy metals. In 2004, the measurements were continued, and an method of estimating DEP concentrations from the variations of various pollutants was examined.
The main findings are as follows.
(1)By using tape type absorption photometer, the high temporal variations of the black carbon were obtained.
(2)Black carbon showed a seasonal variation with a maximum in autumn, and a minimum in spring.
(3)From a statistical analysis and a diffusion calculation, the DEP contribution to SPM and black carbon content in DEP were estimated.
(4)Assuming the DEP unit risk (3.4x10^<-5>, WHO), the estimated carcinogenesis risk level in Sapporo ranged from 1.7x10^<-4> to 3.7x10^<-4>.

  • Research Products

    (4 results)

All 2004

All Journal Article (4 results)

  • [Journal Article] テープ式吸収率計の開発と黒色純炭素連続測定への適用2004

    • Author(s)
      加藤秀樹, 村尾直人, 山形定, 太田幸雄
    • Journal Title

      環境工学研究論文集 41

      Pages: 105-110

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 大気汚染常時監視測定局のNOx測定値を用いた札幌市におけるディーゼル排気微粒子に起因する発ガンリスクの推定2004

    • Author(s)
      加藤秀樹, 村尾直人, 山形定, 太田幸雄
    • Journal Title

      環境工学研究論文集 41

      Pages: 111-117

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Development of Absorption Photometer Using Tape Type Filter for Continuous Black Carbon Measurements2004

    • Author(s)
      Kato, H., Murao, N., Ohta, S., Yamagata, S.
    • Journal Title

      Environmental Engineering Research 41

      Pages: 111-117

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Estimation of Cancer Risk from Diesel Exhaust Particle (DEP) Based on NOx Data at Air monitoring Stations in Sapporo, Japan2004

    • Author(s)
      Kato, H., Murao, N., Ohta, S., Yamagata, S.
    • Journal Title

      Environmental Engineering Research 41

      Pages: 111-117

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 2006-07-11  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi