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Updated: Jan 24, 2026
09:34
Implementation of Portable Emissions Measurement Systems PEMS for the Real-driving Emissions RDE Regulation in Europe
Published on: December 4, 2016
28.8K
[Characterization of Tailpipe Emissions from in-use Excavators]
Shuai Ma1, Kai-Shan Zhang1, Fan Wang1
1College of Architecture & Environment, Sichuan University, Chengdu 610065, China.
Huan Jing Ke Xue= Huanjing Kexue
|May 16, 2019
Summary
Real-world excavator emissions (CO, HC, NO, and PM2.5) were measured using portable emission measurement systems (PEMS). Results show emissions vary by operation mode and equipment, with newer standards reducing pollutants like nitrogen oxides and particulate matter.
Area of Science:
- Environmental Science
- Mechanical Engineering
- Atmospheric Chemistry
Context:
- Construction equipment, specifically excavators, are significant sources of air pollution.
- Understanding real-world emissions is crucial for accurate environmental impact assessments.
- Existing emission factor models may not fully represent actual operational emissions.
Purpose:
- To characterize real-world tailpipe emissions (CO, HC, NO, PM2.5) from excavators under various operational modes.
- To compare emissions data obtained via portable emission measurement systems (PEMS) with national guidance values.
- To evaluate the influence of different emission standards on excavator pollutant output.
Summary:
- Eight excavators were monitored at construction sites using PEMS during idling, moving, and working modes.
- Emissions varied significantly based on operational mode and equipment; newer emission standard excavators showed lower NO and PM2.5 emissions.
- Real-world measurements revealed discrepancies compared to national emission factor recommendations.
Impact:
- Highlights the importance of PEMS for accurate non-road equipment emission inventory development.
- Provides empirical data to refine emission models and inform regulatory policies for construction machinery.
- Demonstrates PEMS's capability in characterizing complex, real-world emission scenarios.
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