TY  - JOUR
T1  - Assessment of Gases Emission from the Operation of the Semi-Aerobic Landfill Site by Solid Waste of Kathmandu Valley, Nepal
AU - Devkota, Rohini Prasad AU - Cockfield, Geoff AU - Maraseni, Tek Narayan AU - Bhattarai, Rabi AU - Devkota, Bhupendra 
JO  - Environmental Research Journal
VL  - 6
IS  - 3
SP  - 182
EP  - 186
PY  - 2012
DA  - 2001/08/19
SN  - 1994-5396
DO  - erj.2012.182.186
UR  - https://makhillpublications.co/view-article.php?doi=erj.2012.182.186
KW  - Landfill
KW  -methane
KW  -hydrogen sulfide
KW  -air flow
KW  -Nepal
AB  - Many landfill sites around the world have been poorly engineered and operated and hence face vociferous public opposition and criticism for their adverse environmental impacts. Because of the concerns arising from poor operation and management, sitting and operation of landfill sites are very sensitive public issues in Nepal. The aim of this study was to assess the environmental impacts due to the faul odour during the operation of the the Sisdol landfill in Okharpauwa VDC, Nuwakot, Nepal. The study focused on identifying the composition of gases from the Kathmandu Valley&#146;s solid waste and impacts on local areas air flow moments from the land fill site. LandGEM Ver. 3.02 Model was used for the emission calculation of the landfill gases. Furthermore, the gastec and specified ditector tubes were used for the measurement of H<SUB>2</SUB>S gas at the study area. Among nine sites, the H<SUB>2</SUB>S gas concentration at site (Vent pipe of landfill site) was 1.4 ppm (recorded maximum). The gas was found to be diluted at 208 m downwind location and reached the value near to clean air, i.e., 0.2 ppb. The observed gas concentration was lower than the toxic range though the concentration level was found to have characteristic odor. The significant level of adverse impact was found nearby the landfill site. People working surrounding area of the landfill site were more vulnerable to different impacts.
ER  -