Comprehensive assessment of environmental impacts: exhaust gas emissions from goods transport trucks in Manokwari regency and effective mitigation strategies

Aljon Sinaga 1, Anton Silas Sinery 2 and Bertha Mangallo 3, *

1 Environmental Science Study Program, Graduate Program, Universitas Papua, Manokwari 98314, Indonesia.
2 Department of Forestry, Faculty of Forestry, Universitas Papua, Manokwari 98314, Indonesia.
3 Department of Chemistry, Faculty of Mathematic and Natural Science, Universitas Papua, Manokwari 98314, Indonesia.
 
Research Article
World Journal of Advanced Engineering Technology and Sciences, 2024, 11(02), 063–068.
Article DOI: 10.30574/wjaets.2024.11.2.0082
 
Publication history: 
Received on 28 January 2024; revised on 05 March 2024; accepted on 08 March 2024
 
Abstract: 
This study aimed to analyze the concentration of %HSU (Heavy Smoke Unit) in the exhaust emissions of freight trucks in Manokwari Regency. It employed a quantitative research approach and utilized incidental sampling to select a total of 30 vehicles as samples. To examine the relationship between exhaust emissions and vehicle characteristics, linear regression analysis was employed. Out of the 14 vehicles (46.67%) that failed the emission test, only 2 (14.29%) were produced before 2010, while the production of the remaining 12 (85.76%) was after 2010. Simultaneously, Cylinder Capacity (X₁), Trip Length (X₂), Vehicle Age (X₃), and Vehicle Maintenance (X₄) influenced the %HSU value (Y). This was indicated by the very small p-value (0.000), where the mean differences between the groups were highly statistically significant. The results showed that the independent variables were mutually related and collectively have a significant impact on the %HSU value.
 
Keywords: 
Cylinder capacity; Exhaust emissions; Maintenance; Trucks; % HSU
 
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