Article
Environmental Sciences
Melike Dorter, Esra Magat-Turk, Tuncay Dogeroglu, Ozlem Ozden-Uzmez, Eftade O. Gaga, Duran Karakas, Serpil Yenisoy-Karakas
Summary: This study evaluated the spatial distribution, temporal variation, and health risk factors of atmospheric pollutants, and found that toluene is the most important compound in ground level ozone formation. BTEX and nitrogen dioxide concentrations were higher around major roads and the city center, while rural-forested areas were rich in ozone.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Analytical
Danielle da Silva Sousa, Vanderli Garcia Leal, Gustavo Trindade dos Reis, Sidnei Goncalves da Silva, Arnaldo Alves Cardoso, Joao Flavio da Silveira Petruci
Summary: This study introduces a low-cost, automated, self-powered analytical platform for determining hourly levels of O-3 and NO2 in urban atmospheres. The platform has low detection limits, enables remote hourly monitoring, and demonstrated suitable accuracy in field testing.
Article
Environmental Sciences
Jason A. Miech, Levi Stanton, Meiling Gao, Paolo Micalizzi, Joshua Uebelherr, Pierre Herckes, Matthew P. Fraser
Summary: Testing the performance of low-cost air quality sensors using various environmental factors showed discrepancies in two sensors, but these were mitigated through sensor-specific calibration, improving overall accuracy. Stable environmental conditions during sensor deployment benefited calibration performance over time.
Article
Geosciences, Multidisciplinary
Steffen Beirle, Christian Borger, Steffen Doerner, Henk Eskes, Vinod Kumar, Adrianus de Laat, Thomas Wagner
Summary: The global catalog of NOx emissions from point sources, based on TROPOMI measurements of tropospheric NO2 for 2018-2019, identifies and quantifies 451 locations, primarily related to power plants. The catalog reveals that the four largest localized NOx emitters are coal combustion plants in South Africa. Despite incompleteness and underestimation of emissions, the catalog has potential for checking and improving emission inventories.
EARTH SYSTEM SCIENCE DATA
(2021)
Article
Engineering, Environmental
Stephanie R. Schneider, Kristyn Lee, Guadalupe Santos, Jonathan P. D. Abbatt
Summary: As the climate warms, wildfires are increasing in size and frequency, impacting air quality by elevating concentrations of PM2.5, NO2, and CO. This study established an automated method to identify wildfire-influenced periods in urban areas and found that wildfires have a relatively greater impact on pollutants like CO and NO2 due to decreasing urban baseline concentrations over time.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Oliva Atiaga, Fernanda Guerrero, Fernando Paez, Rafael Castro, Edison Collahuazo, Luis Miguel Nunes, Marcelo Grijalva, Ivan Grijalva, Xose Luis Otero
Summary: This study analyzes the impact of COVID-19 lockdown on the spatiotemporal variability of ozone (O3), sulfur dioxide (SO2), and nitrogen dioxide (NO2) concentrations in different provinces of continental Ecuador using satellite information. The results show a significant decrease in NO2 concentrations during the lockdown period in all study areas, while NO2 concentrations increased by over 20% in the period after lockdown. SO2 concentrations showed irregular variations during lockdown, but increases were observed in certain provinces due to volcanic activity. Conversely, O3 concentrations increased in the study areas, possibly due to decreased levels of NOx.
Article
Environmental Sciences
Yuqing Dai, Xiaoming Cai, Jian Zhong, A. Rob MacKenzie
Summary: A multi-box model is proposed to simulate the transportation and distribution of chemical species in street canyons, showing good agreement with LES simulations, especially for deep canyons. The model performs well in capturing patterns and is more suitable for sensitivity testing compared to LES.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
P. Perez Ballesta, A. Bau, R. A. Field, E. Woolfenden
Summary: The study used POD diffusive samplers to test 110 different ozone precursor and air toxic compounds, and found stable sampling rates for 39 ozone precursors and 33 air toxics. A model was developed to estimate sampling rates, and a practical approach to selecting sampling time was defined.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Stefan Platikanov, Marta Terrado, Maria Teresa Pay, Albert Soret, Roma Tauler
Summary: The study applied multivariate curve resolution method to analyze hourly O-3 and NO2 concentrations measured at nineteen air quality monitoring stations in Catalonia, Spain in 2015. Results showed the impacts of various factors on concentration changes. Evaluation of predicted concentrations by the CALIOPE system revealed differences at different spatial resolutions, with NO2 showing better performance, especially at urban stations.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biochemical Research Methods
Rachel L. Davey, Erick J. Mattson, J. Alex Huffman
Summary: The study demonstrates that gas-phase ozone and nitrogen dioxide can react with proteins in the atmosphere to form nitrotyrosine, potentially impacting human health. Bovine serum albumin samples exposed to urban air in Denver, Colorado were used to investigate protein modification under ambient conditions, highlighting the formation of nitrotyrosine and its relevance to atmospheric exposure studies.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Meteorology & Atmospheric Sciences
Jeffrey A. Geddes, Bo Wang, Dan Li
Summary: Sea breeze conditions significantly impact air pollutant concentrations in the Boston region, especially during summer. Mornings preceding sea breezes are characterized by low pollution background and accumulation of local emissions. Sea breeze days exhibit large horizontal gradients, which are more pronounced compared to prevailing westerly or easterly days.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Humanities, Multidisciplinary
Ida Krasevec, Eva Menart, Matija Strlic, Irena Kralj Cigic
Summary: In this study, the SKC UMEx 200 passive samplers were validated for sampling acetic acid and formic acid in museum environments. The sampling rates, extraction efficiency, detection limits, and concentrations were determined through laboratory exposure and case studies at the National Museum of Slovenia. The results showed that the passive samplers are effective in monitoring volatile pollutants in heritage materials.
Article
Engineering, Environmental
Hyeyeon Choi, Ji Hoon Seo, Seunghyun Weon
Summary: In this study, a colorimetric ozone passive sampler (OPS) was developed to improve the recognition of average ozone (O3) exposure. By analyzing the colorimetric changes and using the effective absorbance of blue scale, the OPS was optimized and validated. Field tests showed a significant disparity between O3 concentrations and personal O3 exposures, highlighting the importance of assessing health risks. The OPS serves as a useful tool for monitoring O3 exposure levels and raising awareness of invisible indoor hazards.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Ulla Arthur Hvidtfeldt, Jie Chen, Sophia Rodopoulou, Maciej Strak, Kees de Hoogh, Tom Bellander, J. orgen Brandt, Francesco Forastiere, Boel Brynedal, Ole Hertel, Barbara Hoffmann, Klea Katsouyanni, Matthias Ketzel, Karin Leander, Patrik K. E. Magnusson, Gabriele Nagel, Goran Pershagen, Debora Rizzuto, Evangelia Samoli, Rina So, Massimo Stafoggia, Anne Tj Onneland, Gudrun Weinmayr, Kathrin Wolf, Emanuel Zitt, Bert Brunekreef, Gerard Hoek, Ole Raaschou-Nielsen
Summary: This study assessed the association between residential exposure to air pollution and multiple myeloma. The results showed no significant association between long-term ambient air pollution exposure and the incidence of multiple myeloma.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Changqing Lin, Alexis K. H. Lau, Jimmy C. H. Fung, Yushan Song, Ying Li, Minghui Tao, Xingcheng Lu, Jun Ma, Xiang Qian Lao
Summary: This study investigated the effects of meteorological factors on nitrogen dioxide (NO2) and ozone (O3) concentrations in China during the summer from 2013 to 2020. The results showed significant reductions in O3 concentrations in eastern and central China after removing major meteorological effects. Contrasting trends in NO2 and O3 concentrations suggest different O3 formation regimes in different regions, indicating the importance of considering meteorological effects in understanding long-term O3 variations.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Civil
Raquel Rojas, Jose Morillo, Jose Usero, Eva Vanderlinden, Hicham El Bakouri
JOURNAL OF HYDROLOGY
(2015)
Article
Environmental Sciences
Daniel Rosado, Jose Usero, Jose Morillo
MARINE POLLUTION BULLETIN
(2015)
Article
Environmental Sciences
Daniel Rosado, Jose Usero, Jose Morillo
Article
Environmental Sciences
Jose Antonio Usero, Daniel Rosado, Jose Usero, Jose Morillo
MARINE POLLUTION BULLETIN
(2016)
Article
Environmental Sciences
Daniel Rosado, Jose Usero, Jose Morillo
MARINE POLLUTION BULLETIN
(2016)
Article
Environmental Sciences
F. Amato, M. Pandolfi, A. Alastuey, A. Lozano, J. Contreras Gonzalez, X. Querol
ATMOSPHERIC ENVIRONMENT
(2013)
Article
Engineering, Chemical
Jose Morillo, Jose Usero, Daniel Rosado, Hicham El Bakouri, Abel Riaza, Francisco-Javier Bernaola
Article
Chemistry, Analytical
Antonio Lozano, Jose Usero, Eva Vanderlinden, Juan Raez, Juan Contreras, Benito Navarrete, Hicham El Bakouri
MICROCHEMICAL JOURNAL
(2010)
Article
Engineering, Environmental
Antonio Lozano, Jose Usero, Eva Vanderlinden, Juan Raez, Juan Contreras, Benito Navarrete, Hicham El Bakouri
OZONE-SCIENCE & ENGINEERING
(2011)
Article
Environmental Sciences
Raquel Rojas, Jose Morillo, Jose Usero, Laura Delgado-Moreno, Jay Gan
SCIENCE OF THE TOTAL ENVIRONMENT
(2013)
Article
Environmental Sciences
Alvaro Gomez-Losada, Antonio Lozano-Garcia, Rafael Pino-Mejias, Juan Contreras-Gonzalez
SCIENCE OF THE TOTAL ENVIRONMENT
(2014)
Article
Environmental Sciences
Lucas Rocha-Melogno, Rebecca Yoo, Osvaldo Broesicke, Achilles Kallergis, Jose Garcia, Estela Herbas, Annelisse Torrez-Daza, Ann Johnson, Daniel Boey, Victoria Beard, Seth H. Frisbie, Susan Murcott, Joe Brown
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Environmental Sciences
Raquel Rojas, Eva Vanderlinden, Jose Morillo, Jose Usero, Hicham El Bakouri
SCIENCE OF THE TOTAL ENVIRONMENT
(2014)
Article
Environmental Sciences
F. Amato, A. Alastuey, J. de la Rosa, Y. Gonzalez Castanedo, A. M. Sanchez de la Campa, M. Pandolfi, A. Lozano, J. Contreras Gonzalez, X. Querol
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2014)
Article
Chemistry, Analytical
Michel Rocha Baqueta, Augusto Cesar Costa-Santos, Ana Paula Rebellato, Gisele Marcondes Luz, Juliana Azevedo Lima Pallone, Federico Marini, Alexsandro Lara Teixeira, Douglas N. Rutledge, Patricia Valderrama
Summary: This study reports the essential element composition of new Brazilian Canephora coffees and applies chemometric tools for analysis. The results demonstrate the suitability of this method for origin and species discrimination based on the inorganic fraction of coffee.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Mengjie Li, Jiapeng Wang, You Zhou, Yang Chen, Lingying Xia
Summary: A novel photoelectrochemical biosensor based on gold nanoparticles and specific structures was developed for highly sensitive detection of mercury ion. The multiple sandwich structures hindered electron supply and light harvesting, resulting in a weakened PEC signal, while the specific structures extinguished the PEC signal, enabling quantitative detection of Hg2+. The sensor exhibited high selectivity and stability, with potential applications in environmental detection, biological analysis, and medical research.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Mohamed A. Korany, Rasha M. Youssef, Marwa A. A. Ragab, Mostafa A. Afify
Summary: A stability-indicating fit-for-purpose method was developed for the determination of HC, TL, and PS in syrup dosage form. The method successfully separated CL from THY and quantified the analytes using HPLC-DAD. The robustness of the method was assessed through statistical analysis and self-validation.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Lingling Lin, Minyu Li, Ping Li, Chenqing Ye, Huanglong Zhuang, Shaohuang Weng, Feng Chen
Summary: This study developed a highly sensitive and selective electrochemical sensor for simultaneous detection of dopamine and uric acid. The sensor exhibited excellent anti-interference and stability, and could accurately measure dopamine and uric acid in human urine samples.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Peifang Chen, Caiyun Jiang, Zhouping Wang, Hong-zhen Lian, Xiaoyuan Ma
Summary: In this study, a high-performance SERS-active aptasensor was successfully developed for the quantitative analysis of AFB1 in cereal grains, which is of great significance in the field of food safety.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
E. Abas, C. Marina-Montes, C. Perez-Marin, J. Puimedon, J. Anzano
Summary: This study conducted a comprehensive measurement of natural and anthropogenic radionuclides in soil, water, and air in different locations around Deception Island in Antarctica. The results revealed significant levels of 210Pb and anthropogenic 137Cs in soil samples near old human settlements and facilities, as well as detectable levels of 137Cs and 60Co in water samples from old hunting areas. The findings also suggested potential resuspension processes based on higher-than-expected air quality results.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Joao Franciso Allochio, Nayara A. dos Santos, Nathalia dos S. Conceicao, Clara S. D. Baptista, Keyller B. Borges, Valdemar Lacerda Jr, Wanderson Roma
Summary: This study developed a fiber spray ionization mass spectrometry (FSI-MS) method, which shows great potential in detecting illicit drugs. Compared with paper spray ionization mass spectrometry (PSI-MS), FSI-MS demonstrates higher sensitivity in COC detection.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Dina A. Ahmed, Ola G. Hussein, Mamdouh R. Rezk, Mohamed Abdelkawy, Yasmin Rostom
Summary: The main goal of this study was to develop two green chromatographic techniques, HPLC and TLC, for the determination of alcaftadine (ALF) in pharmaceutical formulation and biological samples. The developed HPLC technique showed high efficiency and minimal environmental impact, successfully identifying ALF in the presence of its degradate. The TLC method provided a stability indicating study for ALF and was determined to be safe, green, and eco-friendly.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Abdullah Taner Bisgin
Summary: A green, speedy, and handy method for separation and determination of four commonly used food colorants was established using vortex assisted sequential-simultaneous liquid phase micro-extraction (VA-SS-LPME). The method does not require any instrumental chromatographic techniques. The procedure includes sequential separation steps using different extractants and simultaneous UV-vis spectrophotometric determination steps. The method is environmentally friendly and applicable for determination of colorants in food and pharmaceuticals.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Yifan Zhang, Tong Zhang, Wenjing Ba, Li Liu, Yuan Rao, Xiaodan Zhang, Hanhan Zhang, Xiu Jin
Summary: This paper proposes a novel spectral transfer modelling method based on neural network architecture searching for the asymptomatic prediction of Akizuki pear cork spot disorder. The experiments show that the model by this method is more effective, achieving an accuracy of 82.61%.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Krzysztof Greda, Maja Welna, Anna Szymczycha-Madeja, Pawel Pohl
Summary: For the first time, a dispersive micro-solid phase extraction (D-mu SPE) based on graphene oxide was used for the ultrasensitive determination of Cd. With this method, Cd can be efficiently extracted from a mixture of alkali and alkaline earth metals without the need for an elution step. The combination of D-mu SPE and SAGD OES significantly reduces matrix effects and improves the tolerance of Cd to alkali metals. The method shows simplicity in the measurement system and the commercially available nanosorbent used.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
P. K. Fathima Anjila, G. R. Tharani, Anand Sundaramoorthy, Venkat Kumar Shanmugam, Karthikeyan Subramani, Shanmugavel Chinnathambi, Ganesh N. Pandian, Vimala Raghavan, Andrews Nirmala Grace, Singaravelu Ganesan, Mangaiyarkarasi Rajendiran
Summary: This work proposes a rapid and sensitive spectroscopic method for detecting melamine in food products using rare-earth Terbium-doped Graphene Quantum Dots (Tb-GQDs) synthesized by microwave and simple chemical conjugation methods. The synthesized Tb-GQDs show a spherical shape with a size of approximately 6 nm and a quantum yield of 52%. The maximum detection limit for melamine concentration in milk and milk products is found to be 0.31 μM. The dual emitting Tb-GQDs provide a sensitive and effective platform for real-time detection of melamine in food samples, particularly in milk, and show promising potential in the food industry.
MICROCHEMICAL JOURNAL
(2024)
Review
Chemistry, Analytical
Piyush Dey, Mandeep Kaur, Akhil Khajuria, Dilmeet Kaur, Manpreet Singh, Hema Kumari Alajangi, Neha Singla, Gurpal Singh, Ravi Pratap Barnwal
Summary: Environmental issues, such as the uncontrolled release of dangerous pollutants, have significant impacts on human health. Traditional methods for detecting pollutants require specialized personnel and equipment, but nanotechnology has improved the performance of biosensors. This article discusses the use of nanotechnology in pollutant detection and the associated techniques.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Sa Dong, Qiuyun Shi, Lingjun Guan, Yulong Wang, Pengyan Liu, Cunzheng Zhang, Jianguo Feng
Summary: In this study, a highly sensitive indirect competitive chemiluminescence enzyme immunoassay (icCLEIA) method was developed for the determination of sodium pentachlorophenolate (PCP-Na) and its metabolite pentachlorophenol (PCP). The method showed high specificity and affinity with a detection limit of 0.0032 ng/mL for PCP-Na and 0.0192 ng/mL for PCP. The method had no cross reaction with other chlorophenols compounds except for PCP. The average recoveries in chicken, pork and fish samples were 81.3-105.8% with low coefficient of variation (CV).
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Palaniappan Ilayaraja, Murugan Manivannan, Paramasivam Parthiban
Summary: Nirmatrelvir, an antiviral drug used for the treatment of COVID-19, has been recommended by the World Health Organization. We developed an optimized analytical method for the quantification of Nirmatrelvir and its products, with high sensitivity and a wide linear range. The method also meets the requirements for greenness evaluation.
MICROCHEMICAL JOURNAL
(2024)