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Metals in a computer. Thirty 24 h samples were collected using portable low-volume samplers across representative urban environments. Open Access — free for readers, with article processing charges (APC) paid by authors or their institutions Oct 27, 2025 · This study assessed the concentrations and spatial patterns of heavy metals in fine particulate matter with aerodynamic diameter below 2. In this study, a systematic study on the catalytic cracking of XLPE using metal ion-loaded ZSM-5 nanosheets was conducted Metals is an international, peer-reviewed, open access journal published monthly online by MDPI. 68 mg L−1 to Copper (Cu), Zinc (Zn), and Cadmium (Cd), respectively, and LC50 values of 0. We compiled long-term studies on the effect of management practices on SOC from Iowa, USA—an agricultural region with relatively high-quality soil data—to highlight constraints on Apr 19, 2024 · This study sought to estimate the potential impact of floodplain forest vegetation on sediment and phosphorus loading along the Iowa River in Iowa, USA. 12 mg Jun 14, 2025 · Accurate temperature measurement is a key parameter that determines the quality of additive manufactured components in directed energy deposition processes. The Portuguese Society of Materials (SPM), and the Spanish Materials Society (SOCIEMAT) are affiliated with Metals and their members receive a discount on the article processing charges. Elemental Oct 20, 2025 · Microstructure design is a main issue when targeting a target material’s properties. These concerns resulted in the implementation of comprehensive policies and treatments to improve the sediment and water quality. Optical pyrometers which are used to provide in-process temperature data require accurate emissivity data of the metal surface. 86 and 0. policy prohibits regulation of agricultural runoff because it is a nonpoint source. Extensive Aug 19, 2023 · The restoration of soil organic matter (SOM, as measured by soil organic carbon (SOC)) within the world’s agricultural soils is imperative to sustaining crop production and restoring other ecosystem services. Analyzing policy texts from China (1973–2024), this study develops a three-dimensional analytical framework—Instrument Type, Policy Objective, and Implementation Domain—integrated with social network analysis to investigate the Aug 21, 2025 · Near-complete (>99%) dissolution of lithium and cobalt was achieved by the leaching of black mass from spent (end-of-life) lithium-ion batteries (LiBs) using 4 M H2SO4 or HCl at 60 °C. In this study, the percentages of detection and violation of regulations were compared over region, season, and water source, and factors affecting the Jun 14, 2025 · Accurate temperature measurement is a key parameter that determines the quality of additive manufactured components in directed energy deposition processes. It is imperative to identify and operationalize sustainability strategies into core administrative, planning, design, construction, operational, and maintenance activities for the transportation infrastructure systems by integrating sustainability into decision-making processes Apr 4, 2023 · Arsenic and atrazine are two water contaminants of high public health concern in Iowa. Nitrate pollution presents a difficult problem for rural and urban communities, and it contributes to the immense Gulf of Mexico Hypoxia Zone. Metals is an international, peer-reviewed, open access journal published monthly online by MDPI. Current U. Ecotoxicological tests showed LC20 values of 0. Within these plots, we examined the Agricultural intensification has had the undesirable effect of degrading water quality throughout the United States. This paper Oct 11, 2025 · Cross-linked polyethylene (XLPE) has been widely used in high-voltage cables due to its superior properties, but its thermoset cross-linked structure makes it difficult to recycle. With limited research on smaller cities, especially in the American Midwest, the goal of this research was to examine the spatial patterns of air temperature across multiple small to medium-sized cities in Iowa, a relatively rural US state. This study addresses this limitation by integrating Urban Weather Generator (UWG) simulations with CCWorldWeatherGen projections to produce microclimate-adjusted and future Feb 1, 2024 · The need to incorporate sustainability principles and practices is increasing for environmental and economic reasons. Catalytic pyrolysis offers a feasible pathway for converting XLPE into high-value chemicals. At 60 °C, 2 M H2SO4 or 2 M HCl performed similarly to the 4 M H2SO4/HCl Oct 1, 2025 · Human activities have led to severe aquatic pollution and significant concerns about the ecological health of the Lianjiang River Basin (LRB). Process-specific emissivity data for metals used in these processes is not readily available. 16, 19. Thirty monitoring plots were established in forested conservation easements and similar public land along the Iowa River within the spatial extent of the two-, five-, and ten-year-flood return intervals. The Raccoon River Watershed upstream of Metals is an international, peer-reviewed, open access journal published monthly online by MDPI. In this study, a systematic study on the catalytic cracking of XLPE using metal ion-loaded ZSM-5 nanosheets was conducted . In this study, thirty surface dust samples were collected from UPGs to determine the toxic metals contents, their risk and disease burden to local residents, and their Oct 11, 2025 · Critical metals constitute essential raw materials for clean energy transition, making their policy evolution highly significant for global resource governance. It is therefore essential to focus on the relations between properties and Oct 19, 2025 · Surface dust serves as a significant carrier and potential source of various pollutants in urban environments. Open Access — free for readers, with article processing charges (APC) paid by authors or their institutions Mar 17, 2025 · Typical Meteorological Year (TMY) datasets, widely used in building energy modeling, overlook Urban Heat Island (UHI) effects and future climate trends by relying on long-term data from rural stations such as airports. 12 and 1. 25, 44. Herein, we explore the concentrations, sources, and degree of metal contamination in filtered water (FW), suspended solids Oct 17, 2025 · In this study, we evaluated the cytotoxicity and antioxidant activity of the soil ciliate Rigidohymena tetracirrata (Gellért, 1942) Berger 2011, exposed to single and bimetallic mixtures of heavy metals (HMs) for 24 h. However, limited attention has been paid to toxic metals in underground parking garages’ (UPGs) surface dust. Raising the temperature to 90 °C did not increase the overall extraction of lithium or cobalt, but it increased the rate of extraction. The occurrence of arsenic and atrazine in drinking water from Iowa’s private wells and public water systems was investigated over several decades. 5 μm and coarse particulate matter with aerodynamic diameter below 10 μm in Santo Domingo, Dominican Republic, during 2022. S. This paper May 11, 2023 · Streambank erosion is a major contributor to watershed suspended sediments and phosphorus exports in many regions, but in Iowa and other midwestern states, the load contribution from streambanks is not considered by state nutrient reduction strategies. The study’s objectives were to evaluate the annual bank erosion rates measured in Iowa using erosion pins and aerial imagery and assess how Nov 16, 2024 · Thorough investigations into air temperature variation across urban environments are essential to address concerns about city livability. k5n inv ncl mfzopq q6fll lwva 0ukpgr 5z npyphwl 2ykf