Article
Environmental Sciences
Chang Yuan, Shengwen Liang, Hairong Cheng, Ruiguang Xu, Siqian Su, Zhibing Yao, Pengcheng Wang, Xiaohan Tuo, Zuwu Wang
Summary: The study compares the deviation caused by SO2 in a coil condenser and a chamber condenser in the dry impinger method. The results show that the positive deviation caused by SO2 is lower in the chamber condenser, especially under high humidity flue gas conditions. Furthermore, the CPM and its water-soluble ions measured using the chamber condenser are higher than those measured using the coil condenser. Based on these findings, the dry impinger method with a chamber condenser is recommended for measuring CPM emitted from stationary sources, particularly under high humidity flue gas conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Energy & Fuels
Chang Yuan, Zuwu Wang, Hairong Cheng, Shengwen Liang, Yuanzhi Hu, Xinyuan Dong, Jiawei Wu
Summary: This study investigated the concentration and characterization of condensable particulate matter (CPM) and filterable particulate matter (FPM) emitted from different stationary sources in Wuhan. The results showed that these stationary sources do emit some CPMs, with coal-fired plants having higher CPM concentrations.
Article
Environmental Sciences
Yu Morino, Satoru Chatani, Yuji Fujitani, Kiyoshi Tanabe, Benjamin N. Murphy, Shantanu H. Jathar, Katsuyuki Takahashi, Kei Sato, Kimiyo Kumagai, Shinji Saito
Summary: Treatment of condensable particulate matter (CPM) is crucial for accurate simulation of atmospheric particulate matter (PM). This study updates the estimation of CPM emissions from stationary combustion sources in Japan by considering the relationship between CPM fraction and filterable PM (FPM) concentrations for individual sources. The findings highlight the importance of accurately estimating the CPM/FPM ratio, particularly for sources with high FPM concentrations, in order to improve CPM emission estimation.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Energy & Fuels
Chang Yuan, Zuwu Wang, Hairong Cheng, Jin Chen, Shengwen Liang, Siqian Su, Pengcheng Wang, Yi Zhan, Luxiang Jiang, Ying Xiong
Summary: In this study, CPM emissions from different stationary sources in Wuhan were analyzed. The results showed that CPM emissions were significantly higher than FPM emissions, with coal-fired power plants having the highest EF of CPM. The chemical composition of CPM differed from that of FPM. Considering the impact of CPM increased the contribution of stationary sources to PM2.5 and decreased the contribution of vehicle sources. The study highlights the importance of updating emission inventories to accurately apportion PM2.5 sources and improve air quality management.
Article
Environmental Sciences
Jong-Sang Youn, Sehyun Han, Jae-Seong Yi, Dae-Il Kang, Kee-Won Jang, Yong-Won Jung, Young-Kwon Park, Ki-Joon Jeon
Summary: The study focused on the development and use of PM10 and PM2.5 cyclones for large stationary emission sources, replacing the cyclones currently used in Method 201A, with similar cutoff diameter and increased collection efficiency.
ENVIRONMENTAL RESEARCH
(2021)
Article
Thermodynamics
Yonglong Yang, Qiufeng Su, Chenghang Zheng, Yang Zhang, Yifan Wang, Dong Guo, Yongbing He, Yue Zhu
Summary: This study analyzed and evaluated the particulate matter emission from ultra-low emission coal-fired units. The results showed that the emission characteristics of condensable particulate matter were significantly affected by different air pollution control devices. There was a correlation between condensable particulate matter and ash content.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Engineering, Environmental
Zhenyao Xu, Yujia Wu, Siqi Liu, Minghui Tang, Shengyong Lu
Summary: This study investigates the emissions of filterable particulate matter (FPM) and condensable particulate matter (CPM) from a coal-fired power plant. The results show that the concentration of CPM increases when coal is mixed with sludge. Most air pollutant control devices have a positive effect on the removal of FPM and CPM, except for the selective catalytic reduction (SCR) denitration device. The low-low temperature electrostatic precipitator has the highest removal efficiency for both FPM and CPM. The organic fraction in CPM is mainly composed of hydrocarbons and organosilicon.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Yujia Wu, Zhenyao Xu, Siqi Liu, Minghui Tang, Shengyong Lu
Summary: This study sampled CPM and FPM emitted from two coal-fired industrial boilers with APCDs, studying their components, organic fractions, and emission concentrations. The study found that saturated hydrocarbons are the main component of organic fractions in CPM, while the proportion of esters in oxygen-containing derivatives is relatively high.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Vasileios N. Matthaios, Man Liu, Longxiang Li, Choong-Min Kang, Carolina L. Z. Vieira, Diane R. Gold, Petros Koutrakis
Summary: This study found that indoor PM2.5 gross alpha and beta radioactivity levels were mainly correlated with various elements, primarily sourced from outdoor air pollution. The contributions of outdoor air pollution to indoor PM2.5 alpha and beta activity levels were most significant during summer and with windows open.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Xiaohui Zhang, Dilinuer Talifu, Xiang Ding, Xinming Wang, Kejun Li, Bowen Liu, Qilong Zhao, Ping Luo, Xiaoxia Xie
Summary: The air pollution in Hotan, Xinjiang is serious, with high concentration of polycyclic aromatic hydrocarbons (PAHs). This study analyzed the characteristics of PAHs in Hotan region by collecting PM10 and PM2.5 samples in summer and winter. The results showed that PAHs concentrations were much higher in winter, mainly derived from vehicle emissions, coal and biomass combustion. The study also revealed the importance of domestic source emissions and oxidative toxicity of PAHs to human health.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Naresh Kumar, Jeremiah Johnson, Greg Yarwood, Jung-Hun Woo, Younha Kim, Rokjin J. Park, Jaein I. Jeong, Suji Kang, Sungnam Chun, Eladio Knipping
Summary: In this study, the CAMx chemical transport model was used to investigate the source contributions to PM2.5 in Korea. The results show that the contributions from outside Korea, including boundary concentrations and international emissions, are significant. The study also reveals the varying contributions from different emission sectors and the importance of meteorological variation in PM2.5 levels.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Environmental Sciences
Jialin Deng, Luman Jiang, Wenwen Miao, Junke Zhang, Guiming Dong, Ke Liu, Juncheng Chen, Tong Peng, Yao Fu, Yunpei Zhou, Xue Huang, Mengqian Hu, Fang Wang, Lin Xiao
Summary: This study highlighted the impact of air pollution on ancient sites and cultural relicts by analyzing indoor and outdoor PM2.5 samples at Jinsha Site Museum. The results showed higher levels of secondary organic carbon in outdoor PM2.5, with pollution mainly sourced from motor vehicles, dust, secondary sources, and combustion sources. Additionally, individual particles were found to be internally mixed, with specific categories identified such as organic matter, S-rich, soot, mineral, and fly ash/metal particles. Recommendations were made for pollution control measures to improve air quality and preserve cultural relicts in museums.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Naresh Kumar, Rokjin J. Park, Jaein Jeong, Jung-Hun Woo, Younha Kim, Jeremiah Johnson, Greg Yarwood, Suji Kang, Sungnam Chun, Eladio Knipping
Summary: Chinese anthropogenic emissions have a significant impact on air quality in South Korea, with contributions reaching up to 60% in some months. The contribution from China to PM2.5 concentrations in South Korea was estimated to be around 45% in 2016, showing a slight decrease compared to 2015.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Mei W. Tessum, Susan C. Anenberg, Zoe A. Chafe, Daven K. Henze, Gary Kleiman, Iyad Kheirbek, Julian D. Marshall, Christopher W. Tessum
Summary: To improve air quality, it is crucial to understand the sources and locations of air pollutant emissions. This study quantifies the contribution of different types and locations of pollutant emissions to PM2.5 exposure using the InMAP model. The research finds significant variations in the proportion of PM2.5 exposure caused by within-city emissions among different cities, which is not explained well by surrounding population density. Thus, there is a need to improve global urban air emission inventories.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Engineering, Environmental
Ying Hu, Bin Zhao
Summary: Ambient PM2.5 and NO2 pollution in China contribute to a significant health burden and indoor smoking and cooking are major sources of PM2.5 and NO2 pollution. Indoor sources contribute strongly to total PM2.5 and NO2 exposure in urban China and are comparable to outdoor sources.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Hsi-Hsien Yang, Narayan Babu Dhital, Nicholas Kiprotich Cheruiyot, Lin-Chi Wang, Shi-Xiong Wang
Summary: This study investigated the effects of road grade on real-world tailpipe emissions of motorcycles, finding that the emission factors of pollutants were significantly higher on uphill routes compared to downhill and baseline routes. The results may help in identifying emission hotspots along roads and formulating traffic air pollution control strategies.
ATMOSPHERIC POLLUTION RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Hsi-Hsien Yang, Nicholas Kiprotich Cheruiyot, Chitsan Lin, Lin-Chi Wang
Summary: Unlike studies on chlorinated organic pollutants, there have been few investigations on the emissions of brominated organic pollutants from the start-up processes of waste incinerators. This study found that the start-up processes can contribute to a significant proportion of the annual emissions of PBDD/F, PBB, and PBDE. It also revealed that cleaning accumulated ash and reducing the residence time of flue gas are effective strategies for controlling the emissions of brominated organic pollutants.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Narayan Babu Dhital, Lin-Chi Wang, Hsi-Hsien Yang, Nicholas Kiprotich Cheruiyot, Che-Hsuan Lee
Summary: This study measured the real-world emission factors of PM, PAHs, and gaseous air pollutants for different diesel-fueled non-road construction machines in Taiwan, providing valuable data for future source apportionment studies. The results showed higher emissions of total hydrocarbons and nitric oxide, while high-molecular weight PAHs had a significant impact on Benzo[a]pyrene equivalent toxicity.
Review
Chemistry, Multidisciplinary
Arooba John, Hsi-Hsien Yang, Sohaib Muhammad, Zafar Iqbal Khan, Haiyang Yu, Muhammad Luqman, Matiba Tofail, Muhammad Iftikhar Hussain, Muhammad Umer Farooq Awan
Summary: Synthetic food colors, such as azo dyes, are important in the food industry but can have adverse effects on oral and cardiovascular health. They can lead to bacterial accumulation, dental plaque formation, and cardiovascular disorders.
APPLIED SCIENCES-BASEL
(2022)
Article
Green & Sustainable Science & Technology
Narayan Babu Dhital, Lin-Chi Wang, Hsi-Hsien Yang, Che-Hsuan Lee, Wei-Hung Shih, Cheng-Shiu Wu
Summary: The COVID-19 pandemic has led to a decrease in public bus usage and a potential increase in air pollutant emissions. Despite lower CO and THC emissions, public buses have higher NO and CO2 emissions compared to cars and motorcycles. Optimizing bus route designs and frequencies, as well as implementing anti-pandemic measures, are necessary to maximize the environmental benefits of public bus transit systems.
SUSTAINABLE ENVIRONMENT RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Muhammad Iftikhar Hussain, Majida Naeem, Zafar Iqbal Khan, Shahzad Akhtar, Muhammad Nadeem, Maha Abdallah Alnuwaiser, Kafeel Ahmad, Oscar Vicente, Hsi-Hsien Yang
Summary: This study explored the distribution of Cu and Cd metals in soil-plant ecosystems and their impact on the public health risk for ruminants. The results showed that the forage crops grown in metal polluted soil had higher levels of Cu and Cd, leading to increased intake of these metals by ruminants. Additionally, local inhabitants faced serious health risks from consuming milk and meat from these contaminated animals.
Article
Green & Sustainable Science & Technology
Muhammad Iftikhar Hussain, Zafar Iqbal Khan, Pervaiz Akhter, Fahad M. Al-Hemaid, Abdulrahman Al-Hashimi, Mohamed Soliman Elshikh, Kafeel Ahmad, Hsi-Hsien Yang
Summary: Pollution by organic wastes and manures is a significant issue in tropical and sub-tropical countries, requiring novel solutions. The study evaluated the impact of three types of manures on heavy metals in soil and coriander, showing potential risks to public health. It is important to avoid contamination and mobilization of organic amendments in plant-soil ecosystems to protect public health.
Article
Multidisciplinary Sciences
Raynard Christianson Sanito, Cindy Lidwina, Hsi-Hsien Yang, Ya-Fen Wang
Summary: This study focuses on extracting metals and metalloids from water hyacinth and water lettuce using an atmospheric-pressure microwave plasma reactor, and generating H2 and CH4 gases that can be used as alternative energy sources. The treated plants also showed significantly reduced concentrations of volatile organic compounds in the effluent gas. Overall, this research highlights the potential of water hyacinth and water lettuce for phytoremediation and by-product energy production.
Article
Green & Sustainable Science & Technology
Raynard Christianson Sanito, Marcelo Bernuy-Zumaeta, Hsi-Hsien Yang, Sheng-Jie You, Wei Chien Wang, Ya-Fen Wang
Summary: The aim of this study is to treat fly ash through plasma pyrolysis combined with the Taguchi method to eliminate volatile organic compounds (VOCs) and recycle it in cement construction. The combination of fly ash with CaCO3, SiO2, Al2O3, and glass showed high efficiency in VOC removal. Taguchi analysis revealed that gas flow rate had the greatest impact on element destruction. The optimal order for element removal was Hg>Cd>Se>As>Cr>Pb>Cu. Additionally, the substitution of 10% fly ash in cement resulted in better quality. Gas flow rates combined with flux agents are recommended as the primary parameters for degrading harmful elements and VOCs. Fly ash from plasma post-treatment has the potential to replace cement in construction materials, promoting recycling concept.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Arooba John, Muhammad Luqman, Sohaib Muhammad, Uzma Hanif, Andleeb Anwar Sardar, Shaukat Ali, Ali Hasnain, Matiba Tufail, Zafar Iqbal Khan, Muhammad Iftikhar Hussain, Binyameen, Muhammad Naveed Anjum, Amna Ejaz, Muhammad Shahzad Chaudhry, Hsi-Hsien Yang, Muhammad Umer Farooq Awan
Summary: This study aimed to examine the genotoxicity of industrial wastewater on plant growth-promoting rhizobacteria (PGPR). The results showed that all the food colors caused significant damage to DNA, with Azorubine E-122 having a greater impact. This highlights the destructive effects of food colors on soil microorganisms and soil fertility.
Article
Green & Sustainable Science & Technology
Maria Ghazzal, Muhammad Iftikhar Hussain, Zafar Iqbal Khan, M. Habib ur Rahman, Abeer A. El-Habeeb, Hsi-Hsien Yang
Summary: This article focuses on the presence of toxic chromium element in wastewater, its impact on soil and plant systems, and its toxicity in the food chain, particularly the risk it poses to human health through dietary intake.
Article
Plant Sciences
Amtul Mujeeb, Zainul Abideen, Irfan Aziz, Nadia Sharif, Muhammad Iftikhar Hussain, Asad Sarwar Qureshi, Hsi-Hsien Yang
Summary: Plants in coastal ecosystems, such as Salvadora persica L., have been recognized as natural accumulators of trace metals. This study evaluated the accumulation of metal pollutants in S. persica from three coastal areas of Karachi. The results showed that S. persica accumulated most of the metals, with the highest accumulation in the most polluted site. Seasonal variations in metal accumulation were observed, which may be attributed to metal speciation and leaf water relation dynamics. The study suggested that S. persica could be grown on some metal-polluted soils, but not on soils affected by high levels of lead.
Article
Agronomy
Fauzia Batool, M. Iftikhar Hussain, Sonaina Nazar, Humayun Bashir, Zafar Iqbal Khan, Kafeel Ahmad, Maha Abdallah Alnuwaiser, Hsi-Hsien Yang
Summary: Anthropogenic activities are the main cause of environmental pollution, which poses significant risks to human health by introducing excessive pollutants into the terrestrial ecosystem. This study evaluated the bioaccumulation of carcinogenic metals and mineral elements in wheat irrigated with sewage water, comparing various environmental traits to understand the fate of these toxic metals. The results show that regular monitoring of wheat crops irrigated with wastewater is highly recommended to minimize health risks in humans.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Agronomy
Muhammad Luqman, Muhammad Umer Farooq Awan, Shaukat Hayat Khan, Razzaq Ahmed, Hsi-Hsien Yang, Muhammad Rizwan Goraya
Summary: Untreated wastewater from Hudiara drain is widely used for irrigation in peri-urban agricultural lands of Lahore city, posing a potential risk of trace element contamination in agricultural produce and a threat to human health.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Environmental Sciences
Hsi-Hsien Yang, Narayan Babu Dhital, Yi Hsuan Lai, Tsai Yu Chan
Summary: This study assessed commuters' exposure to volatile organic compounds (VOCs) during different modes of commuting and found that cyclists had the highest VOC inhalation dose due to their higher minute ventilation rates and longer exposure time. Bus commuters had the lowest VOC inhalation dose. The study highlights the importance of considering air quality in transportation infrastructure design.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)