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Limited information is available for how soil compaction affects carbon dioxide (CO2) efflux under different tillage systems. To improve understanding of the effects of compaction and tillage on soil CO2 efflux, an incubation study consisting of no tillage (NT), moldboard plow (MP), and ridge tillage (RT) was conducted to explore the relationships between CO2 efflux and bulk density, as well as pore...
The Hybrid Cells in Series model consists of a plug flow cell – first and second well-mixed cells in series that represent advective-dispersive transport pollutants in river reaches. The key model parameters are the cell residence times (α, T1, and T2), which require parameter optimization to calibrate the model and to identify the sensitivity of model parameters. The least square error optimization...
In recent years have seen increasing evidence linking occupational and environmental exposure to toxic pollutants with human male reproductive disorders. The aim of this study was to collect epidemiological information on male reproductive health to explore the effects of electronic waste (e-waste) environmental pollution on male genital health in Wenling, one of the world’s biggest e-waste recycling...
Lead (Pb) contamination of urban soil is a threat to human health, and reducing the risk of Pb-contaminated soil is a continuing international concern. Soil stabilization technique has been considered as apromising remediation technique to facilitate the immobilization of Pb in soil. The purpose of this study was to evaluate the effects of different amendments, including H₃PO₄, Ca(H₂PO₄)₂, H₃PO₄+Ca(H₂PO₄)₂,...
This study measured trace elements and assessed fluoride levels in groundwater in Azerbaijan. We investigated endemic diseases in regions of Azerbaijan using the aforementioned data. Geographic regions were classified as an endemic region or not by using a support vector machine (SVM). Classification accuracy for the SVM classifier was determined to be 76.92%.
To assess the erosion resistance of soils beneath Robinia pseudoacacia (Robinia), soil anti-scouribility (AS) and its relevant structural properties in an age sequence of 4-, 11-, 24-, 37-, and 43-year-old Robinia, lands and one adjacent cropland (CK) were studied through a simulated flow scouring experiment on a hilly Loess Plateau. Soils from the six-stage Robinia planting were hypothesized to differ...
To evaluate the associations between traffic-related air pollution (TRAP) and children’s attention spans, an analysis was performed in a cross-sectional epidemiological study. Two primary schools were chosen based on the levels of traffic density and ambient air pollutants. School A is located in a clean area and School B in a polluted area. Two-hundred and eighty-two students from three third-grade...
What is the relationship with environmental factors of phytoplankton community dynamics in saline lakes? We analyzed a data set of phytoplankton community and environmental parameters in seasonal periods (i.e., summer and autumn) in order to describe seasonal variations within the phytoplankton community and its relationship with environmental variables in Chagan Nur Lake on the Ordos Plateau in China...
In situ stabilization of cadmium (Cd) in soil by the addition of Fe-rich amendments (e.g., red mud or RM) has been suggested as an effective and low-cost method. A combined soil-sand pot experiment was conducted to investigate the influence of the addition of RM on iron plaque formation and Cd accumulation in rice plants. Two experiments were conducted: 1. A hydroponic trial with 20 cultivars for...
As urbanization increases, urban runoff becomes an increasingly more important component of urban non-point pollution. In this study, the Storm Water Management Model was used to simulate the quantity and quality of runoff in a highly urbanized catchment. Data from three rainfall events were collected and used for model calibration and validation. Model performance was assessed using the Nash-Sutcliffe...
The procedure of the rainfall–runoff (R-R) model, based on the instantaneous unit hydrograph (IUH) method and used to calculate the probable flows in 8 profiles of the Losse river (on the stretch from 5+476 to 7+596 km) for three flood scenarios (Qextreme, Q1% and Q10%), has been presented in this work. A computer program developed by the author was used to conduct the analyses, enabling the flows...
Our study investigates the historical achievements of agri-environmental and economic policies in order to ensure food security in the nations of Germany, France, the Netherlands, and Turkey. Various agroeconomic and environmental indicators are tested, such as per capita cereals, per capita meat production, per capita milk production, yield of cereals, gross agricultural production value, fertilizer...
The aim of our study was to examine the literature on the phenomenon of the so-called “Weekend Effect” (WE) in Warsaw and its outskirts. An analysis of the temporal and spatial distribution of ozone and nitrogen dioxide concentrations was made using hourly data on ozone and nitrogen dioxide concentrations in the period from May to September 2008 to 2012 from automatic air quality monitoring stations...
Our research was realized in segments of 80-year-old secondary spruce ecosystems selected in the buffer zone of Slovenský raj NP (western Carpathians). The vertical transect (635-1,110 m a.s.l.) consisted of three localities with six geobiocoenological plots. The Cr contents (mg kg-1) found in surface humus (0.38±0.04-2.18±0.22) and Ao horizons (0.20±0.03-3.16±0.32) of Skeli-Humic Podzols and Dystric...
There is convincing evidence that climatic variation and human activities are key factors impacting the hydrological behavior of a watershed. But little attention has been paid to such impacts on mesoscale and microscale forest basins, and key details remain unresolved. In this study, a small forest watershed in north China was selected as our study object. Separate evaluation and statistical methods...
There has been considerable international study on the etiology of rising mental disorders, such as ADHD, in human populations. As glyphosate is the most commonly used herbicide in the world, we sought to test the hypothesis that glyphosate use in agriculture may be a contributing environmental factor to the increase in healthcare utilization among individuals with diagnosed ADHD. State estimates...
This paper presents results from a research study in which the effects of steepness coefficient (S) for the activation function of a back propagation neural network (BPNN) were investigated, and optimum values of S for each activation function were suggested for environmental modeling purposes. A BPNN algorithm was implemented in Excel Visual Basic for Applications with built-in activation functions...
The aim of our study was to investigate the effectiveness of Fenton and photo-Fenton processes for removing anionic surfactants from aqueous solutions. The study was conducted using 200 mgL⁻¹ linear alkyl benzene Sulfonate (LAS) as a model of anionic surfactants. This study revealed that the mean removal efficiency of LAS in Fenton and photo-Fenton at 20 minutes reaction time at 100 mgL⁻¹ constant...
This paper describes a batch study on four different mixture ratios of household organic waste and cow manure. The biomethane potential test is used to evaluate the suitability of high solid anaerobic co-digestion of household organic waste and cow manure and its biodegradability. The maximum methane yield was observed for both co-digestions in R3 (247 mL/g VS) and R4 (244 mL/g VS). The percentages...
Greenhouse gas (GHG) emissions from municipal solid waste (MSW) management significantly contribute to high global warming potential (GWP). However, most studies have failed to facilitate identifying MSW management schemes capable of comprehensively meeting the goals from decision-makers at different hierarchical levels under uncertainties. This study develops an inexact bi-level linear programming...
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