Impact of introducing electric vehicles on ground-level O₃ and PM_2.5 in the Greater Tokyo Area: yearly trends and the importance of changes in the urban heat... by H. Hata, N. Mizushima, T. Ihara

“…This is due to the increased NO titration effect caused by the lowered planetary boundary layer height and due to the degradation of photochemistry related to O<span class="inline-formula">₃</span> formation caused by a decrease in temperature and biogenic volatile organic compounds (BVOCs). The mitigation of UHI would result in enhanced particle coagulation, with an increase in ground-level PM<span class="inline-formula">_2.5</span>. …”
Get full text

Volatile Organic Compounds and Carbonyls Pollution in Mexico City and an Urban Industrialized Area of Central Mexico by Elizabeth Vega, Omar Ramírez, Gabriela Sánchez-Reyna, Judith C. Chow, John G. Watson, Diego López-Veneroni, Monica Jaimes-Palomera

“…VOC emission sources associated with industrial processes (such as oil refineries, power plants, plastic manufacturing, asphalt production, and solvent usage), vehicular exhaust, evaporated gasoline, LPG, food cooking, and biogenic emissions were identified using the Positive Matrix Factorization (PMF) solution to the chemical mass balance (CMB) model. …”
Get full text

A new portable sampler of atmospheric methane for radiocarbon measurements by G. Zazzeri, G. Zazzeri, L. Wacker, N. Haghipour, P. Gautschi, T. Laemmel, T. Laemmel, S. Szidat, S. Szidat, H. Graven

“…<p>Radiocarbon (<span class="inline-formula">¹⁴</span>C) is an optimal tracer of methane emissions, as <span class="inline-formula">¹⁴</span>C measurements enable distinguishing between fossil methane and biogenic methane (CH<span class="inline-formula">₄</span>). …”
Get full text

Biofabrication of zinc oxide nanoparticles using Moringa oleifera, characterization and statistical optimization for their application in crystal violet adsorption by Meshayil M. Alsolmi, Noura El-Ahmady El-Naggar, Mashael I. Alqurashi, Ragaa A. Hamouda

“…Mo/ZnO-NPs exhibit a Zeta potential of − 21.9 mV, and X-ray diffraction (XRD) analysis confirms their crystallographic structure. The size of the biogenic Mo/ZnO-NPs ranges from 5.52 to 41.59 nm. This study was designed to estimate and maximize the ability of Mo/ZnO-NPs to remove crystal violet using Central Composite Design (CCD), considering pH (ranging from 3 to 11), incubation time (ranging from 30 to 150), nanoparticles concentrations (ranging from 0.2 to 1.8 mg/mL), and crystal violet concentrations (ranging from 25 to 125 ppm). …”
Get full text

The Petrogenesis of the Permian Podong Ultramafic Intrusion in the Tarim Craton, Western China: Constraints from C-He-Ne-Ar Isotopes by Mingjie Zhang, Pengyu Feng, Tong Li, Liwu Li, Juerong Fu, Peng Wang, Yuekun Wang, Zhongping Li, Xiaodong Wang

“…The CH4, C2H6, C3H8, and C4H10 hydrocarbon gases show normal or partial reversal distribution patterns of carbon isotope with carbon number and light δ13C1 value of CH4, indicating the hydrocarbon gases of biogenic origin. The δ13C of CO2 and CH4 suggested the magmatic volatile of the mantle mixed with the volatiles of thermogenic and crustal origins. …”
Get full text

Global decadal measurements of methanol, ethene, ethyne, and HCN from the Cross-track Infrared Sounder by K. C. Wells, D. B. Millet, J. F. Brewer, V. H. Payne, K. E. Cady-Pereira, R. Pernak, S. Kulawik, S. Kulawik, C. Vigouroux, N. Jones, E. Mahieu, M. Makarova, T. Nagahama, I. Ortega, M. Palm, K. Strong, M. Schneider, D. Smale, R. Sussmann, M. Zhou

“…The results reveal robust global distributions of the target VOCs from known biogenic, biomass burning, and industrial source regions, and they demonstrate the impact of anomalous events such as the 2015–2016 El Niño. …”
Get full text

Assessment of Impact of Meteorology and Precursor in Long-term Trends of PM and Ozone in a Tropical City by Christian Mark G. Salvador, Angeles D. Alindajao, Karen B. Burdeos, Mark Anthony M. Lavapiez, Jhon Robin Yee, Angel T. Bautista, Preciosa Corazon B. Pabroa, Rey Y. Capangpangan

“…Abstract Long-term trends of atmospheric pollutants, particularly ozone (O3) and particulate matter (PM) provide a direct evaluation of the response of the atmosphere to the environmental policies and the variability of anthropogenic and biogenic emissions. Here, we report the assessment of the temporal evolution of the air quality in a tropical urban city (Butuan) in the southern Philippines by evaluating the trends of meteorological conditions (i.e., temperature, R.H., boundary layer height), air pollutants (i.e., PM2.5, NO2, O3) and their precursors (Benzene, Toluene, and Xylene) from 2014 to 2020. …”
Get full text

Influence of quartz types on mechanical parameters in the early silurian Longmaxi shale, Sichuan Basin by Qin Zhang, Feng Liang, Qun Zhao, Wen Liu, Weiliang Kong, Wanli Gao, Xinyu Zhang, Guangyin Cai, Tianquan Qu, Zhen Qiu

“…Abstract Quartz is one of the most abundant minerals in shales, occurring predominantly in three forms: biogenic quartz (BQ), detrital quartz (DQ) and clay-transformed quartz (CTQ). …”
Get full text

In vitro modeling of feline gut fermentation: a comprehensive analysis of fecal microbiota and metabolic activity by Qianle Ren, Qianle Ren, Yuling Li, Mingmei Duan, Jinjun Li, Fangshu Shi, Yun Zhou, Wanjing Hu, Junfu Mao, Xiaoqiong Li

“…Additionally, substrates with a high carbon-to-nitrogen ratio promote the production of more SCFAs and biogenic amines, and enrich the Bacteroidaceae family, even when the total substrate amount is lower. …”
Get full text

RETRACTED ARTICLE: Synthesis of silver nanoparticles using Plantago lanceolata extract and assessing their antibacterial and antioxidant activities by Muhammad Zahir Shah, Zheng-Hui Guan, Ala Ud Din, Amjad Ali, Ata Ur Rehman, Kashif Jan, Shah Faisal, Shah Saud, Muhammad Adnan, Fazli Wahid, Saud Alamri, Manzer H. Siddiqui, Shamsher Ali, Wajid Nasim, Hafiz Mohkum Hammad, Shah Fahad

“…NPs showed efficient activity as compared to ACE, and finally, the bacterial growth was impaired by biogenic NPs. The lethal dose (LD50) of Ag. NPs against Agrobacterium tumefaciens, Proteus vulgaris, Staphylococcus aureus, and Escherichia coli were 45.66%, 139.71%, 332.87%, and 45.54%, with IC50 (08.02 ± 0.68), (55.78 ± 1.01), (12.34 ± 1.35) and (11.68 ± 1.42) respectively, suppressing the growth as compared to ACE. …”
Get full text

Identification of a novel heterozygous GPD1 missense variant in a Chinese adult patient with recurrent HTG-AP consuming a high-fat diet and heavy smoking by Xiao-Yao Li, Bei-Yuan Zhang, Xin-Ran Liang, Yan-Yu Han, Min-Hua Cheng, Mei Wei, Ke Cao, Xian-Cheng Chen, Ming Chen, Jian-Feng Duan, Wen-Kui Yu

“…In vitro, the corresponding plasmid was constructed and transfected into human renal HEK-293T cells, and GPD1 protein levels were detected. A biogenic analysis was performed to study the population frequency, conservation, and electric potential diagram of the new variant p.K327N. …”
Get full text

Urban ozone formation and sensitivities to volatile chemical products, cooking emissions, and NO_<i>x</i> upwind of and within two Los Angeles Basin cities by C. E. Stockwell, M. M. Coggon, R. H. Schwantes, C. Harkins, C. Harkins, B. Verreyken, B. Verreyken, B. Verreyken, C. Lyu, C. Lyu, Q. Zhu, Q. Zhu, Q. Zhu, L. Xu, L. Xu, L. Xu, J. B. Gilman, A. Lamplugh, A. Lamplugh, A. Lamplugh, J. Peischl, J. Peischl, J. Peischl, M. A. Robinson, M. A. Robinson, P. R. Veres, P. R. Veres, M. Li, M. Li, A. W. Rollins, K. Zuraski, K. Zuraski, S. Baidar, S. Baidar, S. Liu, T. Kuwayama, S. S. Brown, B. C. McDonald, C. Warneke

“…VOC sensitivity analyses show that anthropogenic VOCs (AVOC) enhance the mean daily maximum 8 h average ozone in Pasadena by 13 ppb, whereas biogenic VOCs (BVOCs) contribute 9.4 ppb. Of the ozone influenced by AVOCs, VCPs represent the largest fraction at 45 %, while cooking and fossil fuel VOCs are comparable at 26 % and 29 %, respectively. …”
Get full text

Reactive nitrogen in and around the northeastern and mid-Atlantic US: sources, sinks, and connections with ozone by M. Huang, M. Huang, G. R. Carmichael, K. W. Bowman, I. De Smedt, A. Colliander, M. H. Cosh, S. V. Kumar, A. B. Guenther, S. J. Janz, R. M. Stauffer, A. M. Thompson, N. M. Fedkin, R. J. Swap, J. D. Bolten, A. T. Joseph

“…It is highlighted that temporal variabilities of Nr and O<span class="inline-formula">₃</span> concentrations and fluxes on subregional to local scales respond to hydrological variability that can be influenced by precipitation and controllable human activities like irrigation. Deposition and biogenic emissions that are highly sensitive to interconnected environmental and plant physiological conditions, plus extra-regional sources (e.g., O<span class="inline-formula">₃</span>-rich stratospheric air and dense wildfire plumes from upwind regions), have been playing increasingly important roles in controlling pollutant budgets as local emissions decline owing to effective emission regulations and COVID lockdowns.…”
Get full text

Measurement Report: Changes in ammonia emissions since the 18th century in south-eastern Europe inferred from an Elbrus (Caucasus, Russia) ice-core record by M. Legrand, M. Legrand, M. Vorobyev, D. Bokuchava, S. Kutuzov, S. Kutuzov, A. Plach, A. Stohl, A. Khairedinova, V. Mikhalenko, M. Vinogradova, S. Eckhardt, S. Preunkert

“…Examination of ice deposited prior to 1850 CE, when agricultural activities remained limited, suggests an NH<span class="inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" id="M8" display="inline" overflow="scroll" dspmath="mathml"><mrow><msubsup><mi/><mn mathvariant="normal">4</mn><mo>+</mo></msubsup></mrow></math><span><svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="8pt" height="15pt" class="svg-formula" dspmath="mathimg" md5hash="a9b2fdba183dceff94210c316afa95ef"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="acp-25-1385-2025-ie00003.svg" width="8pt" height="15pt" src="acp-25-1385-2025-ie00003.png"/></svg:svg></span></span> ice concentration related to natural soil emissions representing <span class="inline-formula">∼</span> 20 % of the 1980–2009 CE NH<span class="inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" id="M10" display="inline" overflow="scroll" dspmath="mathml"><mrow><msubsup><mi/><mn mathvariant="normal">4</mn><mo>+</mo></msubsup></mrow></math><span><svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="8pt" height="15pt" class="svg-formula" dspmath="mathimg" md5hash="9837b1bc16c7511343fef307428ed3c8"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="acp-25-1385-2025-ie00004.svg" width="8pt" height="15pt" src="acp-25-1385-2025-ie00004.png"/></svg:svg></span></span> level, a level mainly related to current agricultural emissions that almost completely outweigh biogenic emissions from natural soil. These findings on historical NH<span class="inline-formula">₃</span> emission trends represent a significant contribution to the understanding of ammonia emissions in Europe over the last 250 years.…”
Get full text