Real-world emissions of in-use off-road vehicles in Mexico

Zavala, M.; Huertas, José Ignacio; Prato, Daniel; Jazcilevich, Arón; Aguilar, Andrés; Balam, Marco; Misra, Chandan; Molina, Luisa T.

doi:10.1080/10962247.2017.1310677

Cited by 19 publications

(4 citation statements)

References 10 publications

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“…These standard tests define a list of work conditions to be respected during bench tests in order to obtain comparable results among different engines without the effect of real field conditions. However, since it is recognised that exhaust gases emissions are subject to wide variations when measured directly during the field activities (Zavala et al, 2017;Lovarelli, Fiala, Larsson, 2018), in many studies, authors investigated these measurements and achieved accurate results but they were less applicable and not frequently comparable with other studies because the specific work conditions strongly affected the results (e.g., soil texture, soil conditions, air temperature). A future application of such accurate measurement systems could be to build tractors equipped with portable instrumentation, eventually simplified with respect to current designs in order to limit costs.…”

Section: Discussion and Future Researchmentioning

confidence: 99%

Exhaust gases emissions from agricultural tractors: State of the art and future perspectives for machinery operators

Lovarelli

Bacenetti

2019

Biosystems Engineering

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Section: Discussion and Future Researchmentioning

confidence: 99%

Exhaust gases emissions from agricultural tractors: State of the art and future perspectives for machinery operators

Lovarelli

Bacenetti

2019

Biosystems Engineering

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“…In recent years, emission studies of agricultural machinery have focused on testing emission factors and establishing emission inventories. Some studies have tested time-based, fuel-based and power-based emission factors in three modes: idling, moving and working (Fu et al, 2013;Ge et al, 2013;Zavala et al, 2017;Hou et al, 2019). Then, some studies focused on the time-based and fuel-based emission factors of agricultural machines during different tillage processes and works at headlands (Janulevičius et al, 2013;Pang et al, 2020;Wang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Real-world fuel-based and tillage area-based emission factors of agricultural machines during different tillage processes

Shen

Yao

et al. 2022

Front. Environ. Sci.

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Emissions of agricultural machines during tillage processes played an important role in severe seasonal pollution events in agricultural areas in China and cannot be ignored. In this study, the CO, NOX, HC and PM2.5 emissions of agricultural machines during real-world tillage processes were tested using a portable emission measurement system (PEMS), and their fuel-based and tillage area-based emission factors were calculated. The CO, NOX, HC and PM2.5 emissions were influenced by emission standards, engine rated power, tillage processes and crops. Only the CO, HC and PM2.5 fuel-based emission factors were reduced from China 0 to China II. For China III agricultural machines, the fuel-based emission factors were higher during plowing and tilling than during harvesting. The tillage area-based CO, NOX, HC and PM2.5 emission factors of corn tillage process were 11.85 ± 8.30, 53.21 ± 48.80, 3.46 ± 3.14 and 1.64 ± 1.33 kg/km2, respectively. The tillage area-based CO, NOX, HC and PM2.5 emission factors of wheat tillage process were 19.69 ± 21.50, 79.98 ± 63.22, 3.90 ± 2.96 and 1.61 ± 2.43 kg/km2, respectively. The tillage area-based emission factors of China III agricultural machines during plowing and tilling were higher than those during harvesting. The fuel consumption per unit tillage area can be used to provide a reference for the interconversion of the two emission factors in future studies. By comparing the fuel-based emission factors in this study with those in the Guidelines and other studies, we observed that the CO, HC and PM2.5 emissions of agricultural machines with corresponding emission standards may be overestimated and the NOX emissions may be underestimated in areas where wheat and corn are mainly grown. Moreover, the pollutant emissions of agricultural machines were regionally different. These results could help elucidate the pollution contribution of agricultural machines in China.

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“…Among scientific research, there has been little effort to quantify impact of off-road vehicles on air quality despite their large contribution (Zavala et. al., 2017).…”

Section: Section Iii: Construction Site Impact and Presencementioning

confidence: 99%

“…al., 2014). Diesel Particle Filters are another cost-effective method to reduce emissions from construction vehicles, potentially up to 61% of black carbon (Zavala et. al., 2017).…”

Section: Section Iii: Construction Site Impact and Presencementioning

confidence: 99%

Neighborhood Air Quality Impact from Construction Site Emissions in Portland, OR

Boyle¹

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Research has shown that diesel particulate matter, including black carbon, is harmful to human health and has climate warming properties. Emissions from off-road engines, specifically construction, are a major source of diesel particulate matter in Portland, OR. There has been little done to manage the impact that construction has on local air quality. This project included a review of recent literature on the health and climate warming effects of particulate matter and black carbon, a modeling study to better understand what the major sources of diesel particulate matter are in Oregon, and a review of current research on construction site emissions. This study also included field monitoring of black carbon at construction sites in Portland, OR which showed that local air quality can be affected. The information gathered in this project, and in partnership with Neighbors for Clean Air, informed content for an interactive web page to help educate and motivate local residents to better understand what’s in their air. This study revealed that there are many opportunities to leverage existing policies and increase incentives for construction projects to adopt cleaner technology and reduce emissions on site.

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Real-world emissions of in-use off-road vehicles in Mexico

Cited by 19 publications

References 10 publications

Exhaust gases emissions from agricultural tractors: State of the art and future perspectives for machinery operators

Exhaust gases emissions from agricultural tractors: State of the art and future perspectives for machinery operators

Real-world fuel-based and tillage area-based emission factors of agricultural machines during different tillage processes

Neighborhood Air Quality Impact from Construction Site Emissions in Portland, OR

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