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176 Results Found

  • Article
  • Open Access
10 Citations
5,458 Views
19 Pages

10 January 2021

Tourism, as one economic activity, results in a full range of environmental impacts globally as well as in China. However, the evaluation of environmental impacts is insufficient because of the strong correlation effect between tourism and other indu...

  • Article
  • Open Access
3 Citations
2,947 Views
14 Pages

Prediction of SOx-NOx Emission in Coal-Fired Power Plant Using Deep Neural Network

  • Min Seop So,
  • Duncan Kibet,
  • Tae Kyeong Woo,
  • Seong-Joon Kim and
  • Jong-Ho Shin

23 November 2023

Coal has been used as the most commonly energy source for power plants since it is relatively cheap and readily available. Thanks to these benefits, many countries operate coal-fired power plants. However, the combustion of coal in the coal-fired pow...

  • Article
  • Open Access
2 Citations
2,340 Views
41 Pages

23 December 2022

SOx and NOx emissions originating from the combustion of fuels during the operation of industrial boilers are one of the primary contributors to regional and local air pollution, which have major effects on human well-being and ecosystems. As governm...

  • Article
  • Open Access
14 Citations
4,805 Views
15 Pages

10 September 2021

This study is an investigation of air pollutant emission abatement in the electricity generation sector from fossil-fuel power plants in Taiwan in 2014 and 2018. PM concentrations are determined by the results of regular tests, while SOx and NOx are...

  • Review
  • Open Access
13 Citations
7,208 Views
21 Pages

Selected Techniques for Cutting SOx Emissions in Maritime Industry

  • Christos Papadopoulos,
  • Marios Kourtelesis,
  • Anastasia Maria Moschovi,
  • Konstantinos Miltiadis Sakkas and
  • Iakovos Yakoumis

Burning fuels with high sulfur content leads to SOx emissions, especially SO2, which leads to various environmental and health problems. The maritime sector is responsible for 13% of the global anthropogenic emissions of SO2. Thus, the International...

  • Article
  • Open Access
17 Citations
4,345 Views
16 Pages

19 September 2018

Anthropogenic emissions from coal combustion pose a serious threat to human wellbeing. One prospective way to solve this problem is by using slurry fuels instead of coal. The problem is especially pressing in China and Russia, so these countries need...

  • Article
  • Open Access
6 Citations
2,280 Views
12 Pages

Cloning and Expression of Sox2 and Sox9 in Embryonic and Gonadal Development of Lutraria sieboldii

  • Min Lu,
  • Zenghou Xing,
  • Yurui Zhou,
  • Youhou Xu,
  • Huijing Peng,
  • Jie Zou,
  • Solomon Felix Dan,
  • Zhicai She,
  • Pengliang Wang and
  • Jinfeng Liu
  • + 3 authors

16 December 2022

The Sox family plays essential roles as transcription factors in vertebrates; however, little is known about the Sox family in Lutraria sieboldii. L. sieboldii are pleasant to eat with a short growth cycle and have become one of the best bottom-seede...

  • Article
  • Open Access
35 Citations
9,245 Views
14 Pages

7 December 2022

As environmental regulations on sulphur emissions become more severe, the maritime sector is looking for alternative solutions. This study evaluates greenhouse gas (GHG) reduction alternatives and their combined ability to decarbonise international t...

  • Review
  • Open Access
49 Citations
15,880 Views
49 Pages

Marine Exhaust Gas Treatment Systems for Compliance with the IMO 2020 Global Sulfur Cap and Tier III NOx Limits: A Review

  • Theodoros C. Zannis,
  • John S. Katsanis,
  • Georgios P. Christopoulos,
  • Elias A. Yfantis,
  • Roussos G. Papagiannakis,
  • Efthimios G. Pariotis,
  • Dimitrios C. Rakopoulos,
  • Constantine D. Rakopoulos and
  • Athanasios G. Vallis

16 May 2022

In the present work, the contemporary exhaust gas treatment systems (EGTS) used for SOx, PM, and NOx emission mitigation from shipping are reviewed. Specifically, after-treatment technologies such as wet scrubbers with seawater and freshwater solutio...

  • Article
  • Open Access
27 Citations
9,510 Views
8 Pages

28 February 2022

The paper compares the emissions from vehicles including ICEVs (internal combustion engine vehicles) with equivalent emissions from BEVs (battery electric vehicles). Additionally, it analyzes the available source research and the specific energy mix...

  • Article
  • Open Access
4 Citations
2,851 Views
14 Pages

15 October 2021

Particulate matter (PM) has caused serious environmental issues in Asia, and various policies for systematic management of PM based on evaluation of the characteristics of emissions are being discussed. In Korea, where the damage of PM from construct...

  • Article
  • Open Access
12 Citations
5,842 Views
31 Pages

10 July 2019

Oil refineries, producing a large variety of products, are considered as one of the main sources of air contaminants such as sulfur oxides (SOx), hydrocarbons, nitrogen oxides (NOx), and carbon dioxide (CO2), which are primarily caused by fuel combus...

  • Article
  • Open Access
10 Citations
3,510 Views
17 Pages

The Influence of Emissions from Maritime Transport on Air Quality in the Strait of Gibraltar (Spain)

  • Vanessa Durán-Grados,
  • Rubén Rodríguez-Moreno,
  • Fátima Calderay-Cayetano,
  • Yolanda Amado-Sánchez,
  • Emilio Pájaro-Velázquez,
  • Rafael A. O. Nunes,
  • Maria C. M. Alvim-Ferraz,
  • Sofia I. V. Sousa and
  • Juan Moreno-Gutiérrez

30 September 2022

Gaseous and particulate emissions from oceangoing ships have a significant effect on the quality of air in cities. This study estimates mainly the influence of NOx, SOx, and particulate matter (PM2.5) on air quality in the Strait of Gibraltar (Spain)...

  • Article
  • Open Access
7 Citations
3,516 Views
16 Pages

25 February 2022

Agricultural activity greatly contributes to the secondary PM2.5 concentrations by releasing relatively large amounts of ammonia emissions. Nonetheless, studies and air quality policies have traditionally focused on industrial emissions such as NOx a...

  • Article
  • Open Access
17 Citations
5,800 Views
14 Pages

Hydrogen Fuel Cell as an Electric Generator: A Case Study for a General Cargo Ship

  • Omer Berkehan Inal,
  • Burak Zincir,
  • Caglar Dere and
  • Jean-Frédéric Charpentier

28 February 2024

In this study, real voyage data and ship specifications of a general cargo ship are employed, and it is assumed that diesel generators are replaced with hydrogen proton exchange membrane fuel cells. The effect of the replacement on CO2, NOX, SOX, and...

  • Article
  • Open Access
5 Citations
3,326 Views
29 Pages

An AIS-Based Study to Estimate Ship Exhaust Emissions Using Spatio-Temporal Approach

  • Akhahenda Whitney Khayenzeli,
  • Woo-Ju Son,
  • Dong-June Jo and
  • Ik-Soon Cho

The global shipping industry facilitates the movement of approximately 80% of goods across the world but accounts for nearly 3% of total greenhouse gas (GHG) emissions every year, and other pollutants. One challenge in reducing shipping emissions is...

  • Article
  • Open Access
30 Citations
7,188 Views
14 Pages

A Commercial Aircraft Fuel Burn and Emissions Inventory for 2005–2011

  • Donata K. Wasiuk,
  • Md Anwar H. Khan,
  • Dudley E. Shallcross and
  • Mark H. Lowenberg

The commercial aircraft fuel burn and emission estimates of CO2, CO, H2O, hydrocarbons, NOx and SOx for 2005–2011 are given as the 4-D Aircraft Fuel Burn and Emissions Inventory. On average, the annual fuel burn and emissions of CO2, H2O, NOx, and SO...

  • Feature Paper
  • Article
  • Open Access
1 Citations
843 Views
24 Pages

Content of Selected Compounds in the Exhaust Gas of a Naturally Aspirated CI Engine Fueled with Diesel–Tire Pyrolysis Oil Blend

  • Leszek Chybowski,
  • Marcin Szczepanek,
  • Waldemar Kuczyński,
  • Iwona Michalska-Pożoga,
  • Tomasz Pusty,
  • Piotr Brożek and
  • Robert Pełech

19 May 2025

This paper presents the results of naturally aspirated compression ignition (CI) internal combustion engine (ICE) bench tests of fuels in the form of a blend of diesel oil with recycled oil (RF) in the form of tire pyrolysis oil (TPO) as an admixture...

  • Article
  • Open Access
35 Citations
5,089 Views
11 Pages

21 March 2017

The main anthropogenic emissions (CO, CO2, NOx, SOx) produced by the processing (combustion) of wastes (coal filter cakes) were measured directly for the first time. The research considered the most widespread coal filter cakes: those of nonbaking, l...

  • Article
  • Open Access
49 Citations
6,435 Views
18 Pages

An Energy Consumption Approach to Estimate Air Emission Reductions in Container Shipping

  • Ernest Czermański,
  • Giuseppe T. Cirella,
  • Aneta Oniszczuk-Jastrząbek,
  • Barbara Pawłowska and
  • Theo Notteboom

6 January 2021

Container shipping is the largest producer of emissions within the maritime shipping industry. Hence, measures have been designed and implemented to reduce ship emission levels. IMO’s MARPOL Annex VI, with its future plan of applying Tier III r...

  • Article
  • Open Access
1,492 Views
25 Pages

Airborne Measurements of Real-World Black Carbon Emissions from Ships

  • Ward Van Roy,
  • Jean-Baptiste Merveille,
  • Kobe Scheldeman,
  • Annelore Van Nieuwenhove and
  • Ronny Schallier

10 July 2025

The impact of black carbon (BC) emissions on climate change, human health, and the environment is well-documented in the scientific literature. Although BC still remains largely unregulated at the international level, efforts have been made to reduce...

  • Article
  • Open Access
2,308 Views
24 Pages

Assessing the Impact of Aviation Emissions on Air Quality at a Regional Greek Airport Using Machine Learning

  • Christos Stefanis,
  • Ioannis Manisalidis,
  • Elisavet Stavropoulou,
  • Agathangelos Stavropoulos,
  • Christina Tsigalou,
  • Chrysoula (Chrysa) Voidarou,
  • Theodoros C. Constantinidis and
  • Eugenia Bezirtzoglou

16 March 2025

Aviation emissions significantly impact air quality, contributing to environmental degradation and public health risks. This study aims to assess the impact of aviation-related emissions on air quality at Alexandroupolis Regional Airport, Greece, and...

  • Article
  • Open Access
17 Citations
6,991 Views
18 Pages

This study aims to accurately estimate the emissions of seven air pollutants (NOX, SOX, CO2, CO, PM2.5, PM10, and NMVOC) from ships for one year (2020) in the busiest port in Korea, Busan Port. To achieve this, a more detailed method for calculating...

  • Article
  • Open Access
46 Citations
4,334 Views
17 Pages

The challenges imposed by climate change and the limited nature of resources generate paradigm shifts at the level of economic, social, and environmental policies and strategies. Promoting the principles of sustainable development and the circular ec...

  • Article
  • Open Access
1 Citations
2,206 Views
13 Pages

20 April 2023

Kao-Ping Air Basin (KPAB) is a heavy industrial area, and also the first and only air quality total quantity control district in Taiwan. Pollutant emission offsetting is an important tool to reduce pollution source emissions and improve air quality i...

  • Review
  • Open Access
93 Citations
12,685 Views
20 Pages

Review on the Safe Use of Ammonia Fuel Cells in the Maritime Industry

  • Michail Cheliotis,
  • Evangelos Boulougouris,
  • Nikoletta L Trivyza,
  • Gerasimos Theotokatos,
  • George Livanos,
  • George Mantalos,
  • Athanasios Stubos,
  • Emmanuel Stamatakis and
  • Alexandros Venetsanos

23 May 2021

In April 2018, the International Maritime Organisation adopted an ambitious plan to contribute to the global efforts to reduce the Greenhouse Gas emissions, as set by the Paris Agreement, by targeting a 50% reduction in shipping’s Green House Gas emi...

  • Article
  • Open Access
5 Citations
2,788 Views
14 Pages

Synthesis of a SiO2/Co(OH)2 Nanocomposite Catalyst for SOX/NOX Oxidation in Flue Gas

  • Alon Khabra,
  • Haim Cohen,
  • Gad A. Pinhasi,
  • Xavier Querol,
  • Patricia Córdoba Sola and
  • Tomer Zidki

24 December 2022

Sulfur and nitrogen oxides (SOX/NOX) are the primary air toxic gas pollutants emitted during fuel combustion, causing health and environmental concerns. Therefore, their emission in flue gases is strictly regulated. The existing technologies used to...

  • Article
  • Open Access
1 Citations
1,311 Views
23 Pages

The maritime sector is undergoing rapid transformation, driven by increasingly stringent international regulations targeting air pollution. While newly built vessels integrate advanced technologies for compliance, the global fleet averages 21.8 years...

  • Article
  • Open Access
54 Citations
5,879 Views
18 Pages

6 October 2020

Nowadays, maritime air pollution is regarded as a severe threat to coastal communities’ health. Therefore, many policies to reduce air pollution have been established worldwide. Moreover, there has been a shift in policy and research attention...

  • Article
  • Open Access
7 Citations
3,960 Views
7 Pages

21 September 2021

Nowadays, electricity consumption has increased worldwide due to the activity of cryptocurrency miners. Much of Iran’s electricity is generated by fossil fuel power plants. So, generating more electricity means producing more air pollutants in Iran....

  • Article
  • Open Access
2 Citations
1,527 Views
20 Pages

A Lifecycle Analysis of a Floating Power Plant Using Biomethane as a Drop-In Fuel for Cold Ironing of Vessels at Anchorage

  • George Mallouppas,
  • Angelos Ktoris,
  • Elias Ar. Yfantis,
  • Sotiris Petrakides and
  • Marios Drousiotis

8 January 2025

The purpose of this research article is to perform a greenhouse gas (GHG) impact assessment using a lifecycle analysis of a cold-ironing solution for vessels at anchorage in a retrofitted barge and a marine genset combusting biomethane in dual fuel m...

  • Article
  • Open Access
1 Citations
2,581 Views
18 Pages

Decarbonization Potential of Alternative Fuels in Container Shipping: A Case Study of the EVER ALOT Vessel

  • Mamdouh Elmallah,
  • Ernesto Madariaga,
  • José Agustín González Almeida,
  • Shadi Alghaffari,
  • Mahmoud A. Saadeldin,
  • Nourhan I. Ghoneim and
  • Mohamed Shouman

Environmental emissions from the maritime sector, including CO2, NOx, and SOx, contribute significantly to global air pollution and climate change. The International Maritime Organization (IMO) has set a target to reduce greenhouse gas emissions from...

  • Article
  • Open Access
16 Citations
5,676 Views
30 Pages

11 October 2020

The aim of the work is to evaluate the damage to human health arising from emissions of in-operation internal combustion engines fed by biogas. The need of including also unregulated emissions like polycyclic aromatic hydrocarbons (PAHs), aldehydes a...

  • Proceeding Paper
  • Open Access
2 Citations
2,478 Views
6 Pages

Analysis of Air Pollutant Emission Inventory from Farm Tractor Operations in Korea

  • Gyu-Gang Han,
  • Jun-Hyuk Jeon,
  • Myoung-Ho Kim and
  • Seong-Min Kim

15 October 2021

Due to the decline in the agricultural labor force and rapid aging of farmers, agricultural machinery is becoming larger, higher-performance, and diversified. In this study, an air pollutant emission inventory for agricultural tractors was analyzed a...

  • Article
  • Open Access
4 Citations
4,476 Views
25 Pages

Use of Biomass as Alternative Fuel in Magnesia Sector

  • Nikolaos Margaritis,
  • Christos Evaggelou,
  • Panagiotis Grammelis,
  • Haris Yiannoulakis,
  • Polykarpos Papageorgiou,
  • Stefan Puschnigg and
  • Johannes Lindorfer

9 November 2022

The European Union has started a progressive decarbonization pathway with the aim to become carbon neutral by 2050. Energy-intensive industries (EEIs) are expected to play an important role in this transition as they represent 24% of the final energy...

  • Article
  • Open Access
11 Citations
3,442 Views
15 Pages

Two-in-One Fuel Synthetic Bioethanol-Lignin from Lignocellulose with Sewage Sludge and Its Air Pollutants Reduction Effects

  • Ju-Hyoung Park,
  • Min-Ho Jin,
  • Young-Joo Lee,
  • Gyu-Seob Song,
  • Jong Won Choi,
  • Dong-Wook Lee,
  • Young-Chan Choi,
  • Se-Joon Park,
  • Kwang Ho Song and
  • Joeng-Geun Kim

9 August 2019

Developing effective, economical, and environmentally sound approaches for sewage sludge management remains an important global issue. In this paper, we propose a bioethanol-lignin (nonfood biomass)-based sewage sludge upgrading process for enhancing...

  • Article
  • Open Access
19 Citations
3,435 Views
18 Pages

Environmental Assessment of European Union Countries

  • Jin-chi Hsieh,
  • Ching-cheng Lu,
  • Ying Li,
  • Yung-ho Chiu and
  • Ya-sue Xu

18 January 2019

This study utilizes the dynamic data envelopment analysis (DEA) model by considering time to measure the energy environmental efficiency of 28 countries in the European Union (EU) during the period 2006–2013. There are three kinds of variables:...

  • Feature Paper
  • Article
  • Open Access
17 Citations
3,118 Views
17 Pages

Relative Environmental, Economic, and Energy Performance Indicators of Fuel Compositions with Biomass

  • Dmitrii Glushkov,
  • Galina Nyashina,
  • Valeriy Medvedev and
  • Kseniya Vershinina

19 March 2020

The present study deals with the experimental research findings for the characteristics of ignition (ignition delay times, minimum ignition temperature) and combustion (maximum combustion temperature, concentration of anthropogenic emission), as well...

  • Review
  • Open Access
15 Citations
6,673 Views
20 Pages

Recent Breakthroughs and Advancements in NOx and SOx Reduction Using Nanomaterials-Based Technologies: A State-of-the-Art Review

  • Moazzam Ali,
  • Ijaz Hussain,
  • Irfan Mehmud,
  • Muhammad Umair,
  • Sukai Hu and
  • Hafiz Muhammad Adeel Sharif

6 December 2021

Nitrogen and sulpher oxides (NOx, SOx) have become a global issue in recent years due to the fastest industrialization and urbanization. Numerous techniques are used to treat the harmful exhaust emissions, including dry, traditional wet and hybrid we...

  • Article
  • Open Access
14 Citations
8,382 Views
16 Pages

2 February 2021

A large potential exists in the Southeast Asia region for deployment of high-efficiency, low-emission (HELE) electricity generation technologies. A cost–benefit analysis of HELE technologies compared to the less efficient subcritical electricity gene...

  • Article
  • Open Access
23 Citations
5,056 Views
20 Pages

24 December 2019

The International Maritime Organization (IMO) has proposed several environmental regulations on controlling SOx and NOx emissions from ships in coastal areas. Under the framework of IMO, some areas have established strict emission control areas (ECAs...

  • Feature Paper
  • Article
  • Open Access
303 Views
21 Pages

21 November 2025

This study assessed the potential of Chlorella vulgaris to biosequester carbon dioxide (CO2) and produce microalgal biomass using real exhaust gases from a municipal heating plant. Experiments were conducted in vertical tubular photobioreactors (V-PB...

  • Review
  • Open Access
6 Citations
2,354 Views
28 Pages

3 January 2025

Combustion is the most advanced and proven method on the market for using agricultural by-product residues and waste from the agri-food industry. Currently, a wide range of combustion technologies is used to produce heat and electricity in low-power...

  • Article
  • Open Access
3 Citations
3,123 Views
15 Pages

Numerical analysis and experimental studies were conducted to evaluate the performance of a selective catalytic reduction (SCR) system according to the load of a 1.5-ton marine boiler. There are post-treatment methods for reducing the exhaust gas emi...

  • Article
  • Open Access
2 Citations
2,097 Views
10 Pages

Development of a Novel De-NOx Technology for the Aftertreatment of Ship Exhaust Gases

  • Petros G. Savva,
  • Yiannis Fessas,
  • Angelos M. Efstathiou and
  • Costas N. Costa

16 October 2023

The shipping industry is the most fuel-efficient means of transporting goods, carrying more than 90% of the global freight task. Ships generally use low quality fuel to reduce costs and, as a result, the sulfur content in the exhaust gas stream is hi...

  • Article
  • Open Access
17 Citations
4,733 Views
16 Pages

A Comparative Study of SOx, NOx, PM2.5 and PM10 in the UK and Poland from 1970 to 2020

  • Zofia Syrek-Gerstenkorn,
  • Berenika Syrek-Gerstenkorn and
  • Shiladitya Paul

13 April 2024

Presently, there is growing discourse surrounding climate change, global warming, and the possibility of urban smog. Daily, we encounter air pollutants unwittingly, often oblivious to the substantial adverse impacts they may impart on our health. Thi...

  • Article
  • Open Access
2 Citations
2,168 Views
24 Pages

Protection of NOx Sensors from Sulfur Poisoning in Glass Furnaces by the Optimization of a “SO2 Trap”

  • Carole Naddour,
  • Mathilde Rieu,
  • Antoinette Boreave,
  • Sonia Gil,
  • Philippe Vernoux and
  • Jean-Paul Viricelle

30 September 2023

Electrochemical NOx sensors based on yttria-stabilized zirconia (YSZ) provide a reliable onboard way to control NOx emissions from glass-melting furnaces. The main limitation is the poisoning of this sensor by sulfur oxides (SOx) contained in the str...

  • Article
  • Open Access
26 Citations
3,625 Views
17 Pages

15 June 2018

Poplar pellets with and without Ca, Mg-lignosulphonate and three poplar and pine pellet blends (with three different percentages of pine—5, 45 and 95 wt.%) were burned in a 50 kW domestic boiler in order to evaluate their suitability as fuels....

  • Article
  • Open Access
1,922 Views
21 Pages

3 September 2025

The sustained growth of air traffic over the past decades has increased the aviation’s contribution to anthropogenic radiative forcing through both CO2 and non-CO2 emissions. Although the industry has committed to achieving net-zero emissions b...

  • Article
  • Open Access
13 Citations
4,507 Views
14 Pages

29 October 2021

Sustainable transport is gaining increasing importance in the political agenda. All modes of transport are obliged to reduce their emissions by both national and international governmental bodies, this requirement being even more necessary in the cas...

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