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Updated: Aug 15, 2025

Implementation of Portable Emissions Measurement Systems PEMS for the Real-driving Emissions RDE Regulation in Europe
Published on: December 4, 2016
A high resolution vehicular emissions inventory for Ecuador using the IVE modelling system.
Rafaela Viteri1, Rafael Borge2, Marcel Paredes3
1Universidad Politécnica de Madrid, Ramiro de Maeztu Street, 7, 28040 Madrid, Spain; Escuela Superior Politécnica de Chimborazo, Panamericana Sur Km 1 ½, Riobamba, Ecuador.
Traffic emissions significantly impact air quality. In Ecuador, trucks are the primary source of air pollution, contributing 57.2% of carbon monoxide (CO) emissions in 2015.
Area of Science:
- Environmental Science
- Atmospheric Chemistry
- Transportation Engineering
Background:
- Traffic-related air pollution is a global concern affecting human health and the environment.
- High-resolution emission inventories are crucial for effective air quality management.
- Vehicle emissions contribute significantly to atmospheric pollutant levels.
Purpose of the Study:
- To develop a high-resolution vehicle emissions inventory for Ecuador.
- To utilize the Intelligent Vehicle Emissions (IVE) modelling system for this purpose.
- To identify key emission sources, patterns, and critical areas within Ecuador.
Main Methods:
- Data collection on vehicle intensity, driving patterns, and environmental variables across Ecuadorian provinces.
- Classification of vehicles into five size categories and consideration of three road types (Highways, Roads, Residential).
- Application of the IVE model using specific engine power, "bines" variables, and emission factors.
Main Results:
- In 2015, Ecuador produced 3.66 million tons of carbon monoxide (CO).
- Trucks were identified as the largest polluters, accounting for approximately 57.2% of total CO emissions.
- High emission generation areas include densely populated cities (Quito, Guayaquil), seaports, and state roads, with peak emissions occurring at 6:00, 12:00, and 18:00 hours.
Conclusions:
- Trucks are the predominant source of atmospheric pollutants in Ecuador.
- Spatial analysis highlights urban centers and major transport routes as critical emission hotspots.
- The study provides valuable data for targeted air quality management strategies in Ecuador.
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