Open AccessStudies on Smoke Opacity of Different Type of Diesel Vehicles in Dhaka City
Author(s) -
M. A. Rouf,
HH Hasib,
M Nasiruddin
Publication year - 1970
Publication title -
bangladesh journal of scientific and industrial research
Language(s) - English
Resource type - Journals
eISSN - 2224-7157
pISSN - 0304-9809
DOI - 10.3329/bjsir.v43i4.2247
Subject(s) - smoke , opacity , truck , diesel fuel , cover (algebra) , environmental science , automotive engineering , engineering , waste management , physics , mechanical engineering , optics
Six hundred and four diesel vehicles were tested for smoke opacity from September 2001 to December 2004 in Dhaka City. Type of diesel vehicles were single decker, double decker, minibus, jeep and microbus, mini truck, human hauler and maxi, pickup and mini covered van, truck and cover van. Tests conducted on mini truck, maxi and human hauler revealed that about 90% of these vehicles had smoke opacity more than 90 HSU and were not fit to ply on the city roads. The study on pick up and mini cover vans revealed that about 71% of the vehicles had smoke opacity more than 90 HSU. 60.2% mini buses showed smoke emission more than 80 HSU. Most of the single decker and double decker buses had smoke opacity within permissible level of 80 HSU. No correlation has been found between the age of the vehicles and emission of smoke from them. Keywords: Smoke opacity, Gross polluter, Emission study, Air pollution doi: 10.3329/bjsir.v43i4.2247 Bangladesh J. Sci. Ind. Res. 43(4), 559-570, 2008