2005.4-2006.3 Yearbook of NILIM
Research Summary


Environment Department

Reference Number Y050107
Title Fact-finding survey of suspended particulate matter on roadsides
Start-End Date 1999.4-2006.3
Division Road Environment Division
Author Head, Yoshiharu NAMIKAWA
Senior Researcher, Tomohiro OGAWA
Research Engineer, Masamichi TAKIMOTO
Guest Research Engineer, Tetsuro KIMURA
Summary Since FY1999, Suspended Particulate Matter (SPM) except for the primary particulate from a vehiclefs exhaust pipe has been investigated in order to improve the forecast accuracy of the SPM concentration on roadside. In FY2005, we investigated concentration of SPMs on roadside of the elevated national road and the highway. Emission factors were estimated with whole data accumulated from FY1999.