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4841
Greenhouse gas emissions (GHGE), water footprint and nitrogen loss associated with food consumption among adults: findings from the updated LEBANese natiONal food consumption surve...
Published 2025-01-01“…Abstract Background Lebanon is grappling with numerous environmental challenges, including water scarcity, landfill waste, deforestation, and rising air pollution. Food choices significantly influence global greenhouse gas emissions and environmental impacts, making it crucial to evaluate the environmental footprints (EFPs) of Lebanon’s current dietary habits. …”
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4842
Gaussian Process Regression Total Nitrogen Prediction Based on Data Decomposition Technology and Several Intelligent Algorithms
Published 2023-01-01“…Total nitrogen (TN) is one of the important indicators to reflect the degree of water pollution and measure the eutrophication status of lakes and reservoirs.To improve the accuracy of TN prediction,based on the empirical wavelet transform (EWT) and wavelet packet transform (WPT) decomposition technology,this paper proposes a Gaussian process regression (GPR) prediction model optimized by osprey optimization algorithm (OOA),rime optimization algorithm (ROA),bald eagle search (BES) and black widow optimization algorithm (BWOA) respectively.Firstly,the TN time series is decomposed into several more regular subsequence components by EWT and WPT respectively.Then,the paper briefly introduces the principles of OOA,ROA,BES,and BWOA algorithms and applies OOA,ROA,BES,and BWOA to optimize GPR hyperparameters.Finally,EWT-OOA-GPR,EWT-ROA-GPR,EWT-BES-GPR,EWT-BWOA-GPR,WPT-OOA-GPR,WPT-ROA-GPR,WPT-BES-GPR,WPT-BWOA-GPR models (EWT-OOA-GPR and other eight models for short) are established to predict the components of TN by the optimized super-parameters.The final prediction results are obtained after reconstruction,and WT-OOA-GPR,WT-ROA-GPR,WT-BES-GPR and WT-BWOA-GPR models based on wavelet transform (WT) are built.Eight models,including EWT-OOA-SVM based on support vector machine (SVM),the paper compares the unoptimized EWT-GPR,WPT-GPR models,and the uncomposed OOA-GPR,ROA-GPR,BES-GPR,and BWOA-GPR models.The models were verified by the monitoring TN concentration time series data of Mudihe Reservoir,an important drinking water source in China,from 2008 to 2022.The results are as follows.① The average absolute percentage error of eight models such as EWT-OOA-GPR for TN prediction is between 0.161% and 0.219%,and the coefficient of determination is 0.999 9,which is superior to other comparison models,with higher prediction accuracy and better generalization ability.② EWT takes into account the advantages of WT and EMD.WPT can decompose low-frequency and high-frequency signals at the same time.Both of them can decompose TN time series data into more regular modal components,significantly improving the accuracy of model prediction,and the decomposition effect is better than that of the WT method.③ OOA,ROA,BES,and BWOA can effectively optimize GPR hyperparameters and improve GPR prediction performance.…”
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4843
Comparison of the extraction efficiencies of four different solvents used in trace metal digestion of selected soils within Abakaliki, Nigeria
Published 2015-07-01“…Soil pollution by trace metals is one of the major global environmental challenges facing us today. …”
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4844
Effect of feeding rate and composition for bioconversion of wastewater treatment plant sludge from the milk and creamer processing industries using black soldier fly larvae
Published 2025-01-01“…Wastewater treatment plant (WWTP) produces sludge deposits needing further treatment and handling to prevent pollution. Food and beverage industry sludge, rich in organic matter and nutrients, serves as a biomass source. …”
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4845
Co-optimising frequency-containment services from zero-carbon sources in electricity grids dominated by Renewable Energy Sources
Published 2025-03-01“…Therefore, it becomes critical to investigate alternative ways to guarantee grid stability without resorting to polluting assets, as emissions targets would be unattainable otherwise. …”
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4846
Super Dosing of IP6 Phytase in Phosphorus-Deficit Diets to Replace Added Phosphorus and Evaluate Growth Performance, Nutrient Digestibility and Bone Mineralization of Broiler Chick...
Published 2025-01-01“… Phosphorus in phytate is poorly available to monogastric animals due to their lack of the phytase enzyme, leading to increased phosphorus excretion and environmental pollution. Additionally, broiler diets high in phytate and low in available phosphorus negatively affect growth performance, nutrient absorption, and bone mineralization. …”
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4847
Atmospheric Wet Deposition of PCDD/Fs in the Ambient Air
Published 2021-05-01“…Abstract Wet deposition is an important mechanism for removing air pollutants from the atmosphere. The total PCDD/Fs-WHO2005-TEQ wet deposition from 2018–2020 was investigated for Beijing and Tianjin City in this study. …”
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4848
Synthesis, Characterization, and Evaluation of the Remediation Activity of Cissus quadrangularis Zinc Oxide Nanoparticle-Activated Carbon Composite on Dieldrin in Aqueous Solution
Published 2022-01-01“…This study recommends testing the remediation potential of the synthesized nanocomposite on other persistent organic pollutants.…”
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4849
Enhanced CH4 emissions from global wildfires likely due to undetected small fires
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4850
Study of the impact on emissions and engine performance of diesel fuel additives made from cotton and castor blended seed oils
Published 2025-01-01“…Many approaches have been implemented in order to reduce the emissions of particular pollutants without compromising engine performance. …”
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4851
Precipitation Chemistry and Occurrence of Acid Rain over the Oil-Producing Niger Delta Region of Nigeria
Published 2010-01-01“…Crude oil exploration and gas flaring in the Niger Delta, and multiplicity of cottage industries in Awka, impacted on the inorganic ion pollution of the rainwater. This may have public health implications in the region.…”
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4852
Application of microbially induced calcite precipitation to mitigate soil frost heave
Published 2023-04-01“…This study aims to investigate the possibility of using the microbially induced calcite precipitation method to control soil frost heave for less pollution introduction to the soil.METHODS: In this study, the Sporosarcina Pasteurii bacterium was used for calcite precipitation. …”
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4853
Nutrient Management Programs, Nitrogen Fertilizer Practices, and Groundwater Quality in Nebraska’s Central Platte Valley (U.S.), 1989–1998
Published 2001-01-01“…Given the societal concern about groundwater pollution from agricultural sources, public programs have been proposed or implemented to change farmer behavior with respect to nutrient use and management. …”
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4854
Integration of carbon dioxide sensor with GNSS receiver for dynamic air quality monitoring applications
Published 2024-01-01“…Air pollution is a significant problem in big cities due to the rapid increase of anthropogenic activities and severe traffic congestion. …”
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4855
Time Series Prediction of COD<sub>Mn</sub> in Dianchi Lake Based on Data Decomposition and NARX Optimization
Published 2024-07-01“…The permanganate index (COD<sub>Mn</sub>) is one of the important indicators for measuring the degree of pollution of water bodies by reducing substances. To improve the prediction accuracy of COD<sub>Mn</sub>, a WPT-SHIO-NARX COD<sub>Mn</sub> time series prediction model is proposed, which combines wavelet packet transform (WPT), success history intelligent optimization (SHIO) algorithm, and nonlinear autoregressive neural network (NARX). …”
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4856
Clinico-spirometrical correlation of newly detected COPD patients with known tobacco smoking exposure or biomass smoke exposure presenting to a teaching institution in Vadodara, Gu...
Published 2025-01-01“…Indoor and outdoor air pollution are major issues in many nations, including India. …”
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4857
Accident Management System Based on Vehicular Network for an Intelligent Transportation System in Urban Environments
Published 2018-01-01“…A consequence of this has been congestion of traffic, more accidents, and pollution. Accidents are a still major cause of death, despite the development of sophisticated systems for traffic management and other technologies linked with vehicles. …”
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4858
Effect of Palm Kernel Shell Ash Supplement with Egg Shell Ash on Stabilized Lateritic Soil for a Road Work
Published 2025-01-01“…These materials can contribute to environmental degradation, including air and water pollution, and adversely affect local ecosystems. This study explores the effects of Palm Kernel Shell Ash (PKSA) and Egg Shell Ash (ESA) on the stabilization of lateritic soil for use in road pavement applications. …”
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4859
Impact of COVID-19 Control Measures on Trace Gases (NO2, HCHO and SO2) and Aerosols over India during Pre-monsoon of 2020
Published 2020-10-01“…In this present study we evaluate and quantify the changes in pollutants across six different geographical zones along with the six most populous cities in the country. …”
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4860
Effects of Precipitation on the Air Quality Index, PM2.5 Levels and on the Dry Deposition of PCDD/Fs in the Ambient Air
Published 2023-03-01“…This is because rainwater removes particles or dissolved gaseous pollutants from the atmosphere and brings aerosols to the ground. …”
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