scholarly journals High Emitter Light Duty Vehicle Contributions to On-road Mobile Emissions in 2018 and 2030

2015 ◽  
Vol 2 (1) ◽  
pp. 47 ◽  
Author(s):  
Susan Collet ◽  
Toru Kidokoro ◽  
Yukio Kinugasa ◽  
Prakash Karamchandani ◽  
Allison DenBleyker

Quantifying the proportion of normal- and high-emitting vehicles and their emissions is vital for creating an air quality improvement strategy for emission reduction policies. This paper includes the California LEV III and United States Environmental Protection Agency Tier 3 vehicle regulations in this projection of high emitter quantification for 2018 and 2030. Results show high emitting vehicles account for up to 6% of vehicle population and vehicle miles traveled. Yet, they will contribute to over 75% of exhaust and 66% of evaporative emissions. As these high emitting vehicles are gradually retired from service and are removed from the roads, the overall effect on air quality from vehicle emissions will be reduced.

2018 ◽  
Vol 9 (3) ◽  
pp. 42 ◽  
Author(s):  
Michael Safoutin ◽  
Joseph McDonald ◽  
Ben Ellies

In developing the U.S. 2017–2025 Light-Duty Vehicle Greenhouse Gas Emissions Standards, the U.S. Environmental Protection Agency (EPA) modeled lithium-ion battery packs for future electrified vehicles to estimate their direct manufacturing costs through 2025. As part of the 2016 Midterm Evaluation of the standards for model years (MY) 2022 to 2025, the analysis was revised to account for developments in battery design since the 2012 rulemaking. This paper describes the methodology that was used for estimating battery capacity, power, and cost, and compares the projected cost estimates to other sources. An empirical equation is derived for specifying motor power as a function of target acceleration time, and suggested factors for converting cell-level costs to pack-level costs are developed.


2020 ◽  
Vol 11 (1) ◽  
pp. 12
Author(s):  
Ram Vijayagopal ◽  
Aymeric Rousseau

The benefits of electrified powertrains for light-duty vehicles are well understood, however sufficient published information is not available on the benefits of advanced powertrains on the various types of medium and heavy duty vehicles. Quantifying the benefits of powertrain electrification will help fleet operators understand the advantages or limitations in adopting electrified powertrains in their truck fleets. Trucks vary in size and shape, as they are designed for specific applications. It is necessary to model each kind of truck separately to understand what kind of powertrain architecture will be feasible for their daily operations. This paper examines 11 types of vehicles and 5 powertrain technology choices to quantify the fuel saving potential of each design choice. This study uses the regulatory cycles proposed by the US Environmental Protection Agency (EPA) for measuring fuel consumption.


2019 ◽  
Vol 33 (4) ◽  
pp. 3-26 ◽  
Author(s):  
Janet Currie ◽  
Reed Walker

Air quality in the United States has improved dramatically over the past 50 years in large part due to the introduction of the Clean Air Act and the creation of the Environmental Protection Agency to enforce it. This article is a reflection on the 50-year anniversary of the formation of the Environmental Protection Agency, describing what economic research says about the ways in which the Clean Air Act has shaped our society—in terms of costs, benefits, and important distributional concerns. We conclude with a discussion of how recent changes to both policy and technology present new opportunities for researchers in this area.


1991 ◽  
Vol 28 (05) ◽  
pp. 270-275
Author(s):  
Robert H. Fitch ◽  
Gordon D. Marsh

The paper describes the U.S. Coast Guard's efforts to establish regulations for marine vapor control systems that will maintain the safe operation of tankships, tank barges, and waterfront facilities when the more stringent air-quality standards are implemented by the Environmental Protection Agency. The reasons for the new standards are given. Marine vapor control systems are described, along with their attendant hazards. The development and nature of the Coast Guard's regulations are described and, finally, international efforts in the area are briefly reviewed.


2021 ◽  
Author(s):  
Rubal Dua ◽  
Scott Hardman ◽  
Yagyavalk Bhatt ◽  
Dimpy Suneja

According to the World Health Organization, India has the world’s worst air quality. Among other factors, vehicular pollution from the increasing stock of passenger vehicles has contributed to India’s deteriorating air quality. This increasing stock is also a factor in India becoming the third-highest oil-consuming and greenhouse gas (GHG)-emitting country worldwide.


2010 ◽  
Vol 151 (6) ◽  
pp. 213-219 ◽  
Author(s):  
Dávid László Tárnoki ◽  
Ádám Domonkos Tárnoki ◽  
Andrew Hyland ◽  
Mark J. Travers ◽  
Katharine Dobson ◽  
...  

Célunk az volt, hogy összehasonlítsuk a dohányzó és nemdohányzó beltéri közösségi helyek légszennyezettségszintjét Magyarországon. Itthon még nem készült ilyen tanulmány. Módszer: TSI SidePak AM510 Personal aerosolmonitorral mértük a 2,5 mikrométer átmérőnél kisebb részecskék (PM 2,5 ) koncentrációját 6 kocsma, 5 étterem, 11 kávézó és 20 egyéb helyiség környezeti levegőjében Budapesten és Zalakaroson 2008. január és augusztus között. Eredmények: Azon a 26 helyen, ahol dohányoztak, az átlag-PM 2,5 -szint 102,3 μg/m 3 (tartomány: 3–487 μg/m 3 ); a nemdohányzó 16 hely átlagértéke pedig 5,1 μg/m 3 (tartomány: 0–28 μg/m 3 ) volt. Következtetések: A magyarországi dohányzó beltéri közösségi helyeken a mért kisméretű részecske koncentrációja 18-szor volt magasabb, mint azokon a helyeken, ahol nem dohányoztak. Közel minden esetben a mért értékek túllépték az Egészségügyi Világszervezet (World Health Organization) és a US Environmental Protection Agency által az emberi egészségre károsnak tartott tartományt.


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