Volume 4 Issue 2

Authors: Gustavo Olguín; Alejandro Mesa

Abstract: This study describes the development of a mock model of exhaust pipe emissions from the Urban Public Transport System (UPTS). The aim is to use this tool to calculate and monitor emissions produced by the UPTS vehicles that circulate in an established area. The model enables the user to determine the emission produced by STPP units (global and separated by its chemical and physical components in grams), per area unit (cell) and in a period of time (day or hour), both values established by the user. The calculated methodology is described, and simplified examples of the calculations are presented.

Keywords: Exhaust Gases Emissions; Predicting Mod; Urban Public Transport


Authors: Rashmi Poudel; Bimal Aryal

Abstract: Nepal's contribution to global greenhouse gas emissions is almost negligible compared with that of other countries. However, the carpet industry is considered to be one of the polluting factors. This study focuses on the effectiveness of Environmental Management System (EMS) implementation in the carpet industry mainly in terms of reducing resource consumption and hence reducing greenhouse gas emission. Two focus group discussions were conducted, one before EMS implementation with 16 participants and the next after EMS implementation with 14 participants. Forty respondents (out of 100 workers) were randomly selected including the industry owner, top management personnel and other employees. Rice husk was found to be the major source of energy used for the production of dyed yarn before and after EMS implementation. The findings showed that the total greenhouse gas emission (GHG) from the industry after one year of EMS implementationwas reduced by 6.06% per ton of dyed woollen yarn. The reduction in GHG emissions isonly a small part of the benefits; overall there is local air pollution management and a global reduction in GHG emissions.

Keywords: Carpet Industry; Emission; Greenhouse Gas