by Esther Mbuci Kinyua  , George William Atwoki Nyakairu  , Emmanuel Tebandeke  and Oghenekaro Nelson Odume

Received: 19 February 2023;  Published: 20 July 2023;  doi: 10.21926/aeer.2303039

Recently, microplastics have emerged as a major environmental pollutant and have been documented globally. Several studies have shown that microplastics can accumulate heavy metals and persistent organic pollutants as they pass through the environment due to their functional groups interacting with and complex these substances. While conventional wastewater treatment methods can reduce a significant amount of microplastics, many still make their way into rivers and oceans worldwide from their effluents. One of the [...]

by Zakhar Slukovskii  and Tatiana Shelekhova

Received: 09 March 2023;  Published: 05 July 2023;  doi: 10.21926/aeer.2303038

Core sediment (sapropel) samples were collected from Lake Okunozero, the Republic of Karelia, Russia, to assess the distribution of heavy metals and their main fractions, probable sources of pollution, and potential ecological and toxicological risks for the water body. Heavy metal concentrations were measured by the mass spectrometry method using an XSeries-2 ICP-MS. The sequential extraction of heavy metals from sapropel samples was performed using the scheme of Tessier. According to the Russian Interstate Standa [...]

by Shih-Ang Hsu

Received: 12 March 2023;  Published: 20 June 2023;  doi: 10.21926/aeer.2302037

For wind-wave interaction studies, from the literature, two criteria for the wind sea are used: one is the wave age and the other wave steepness. Analysis of pertinent datasets from a data buoy near the passage of Hurricane Matthew in 2016 indicates that = -15 + 1.3. Here is the wave age and is the wave steepness, where Cp is the phase speed of the peak wave, U10 is the wind speed at 10 m, Hs is the significant wave height, and Lp is the peak or dominant wave length. It is found that 87% of the variation betw [...]

by Christopher Lavers

Received: 23 November 2022;  Published: 12 June 2023;  doi: 10.21926/aeer.2302036

This paper reviews the growing importance of satellite imagery to provide Normalized Difference Vegetative Index (NDVI) maps, relevant to environmental land management assessment, in the context of resource and climate-related conflict based upon our own humanitarian project-related support. Near real-time space-based monitoring benefits land assessment, human rights observers, and Non-Governmental Organizations (NGOs), in the presence of unstable regimes or socio-economic upheaval. Access to areas to validate clai [...]

by Úrsula Oswald-Spring

Received: 06 November 2022;  Published: 06 June 2023;  doi: 10.21926/aeer.2302035

The present article studies the policy, numbers, and costs of disaster risk management (DRM) in Mexico, a country highly exposed to climate change, due to two oceans warming up. The PEISOR methodology facilitates interrelating complex interactions and pressures between the natural and the societal system (P), where dangerous effects (E) occur in extreme events, such as floods, landslides, and drought. The impacts (I) of global warming, the pressure of historical poverty, and vulnerable regions were affected by the [...]

by Andreas Miles-Novelo  and Craig A. Anderson

Received: 30 August 2022;  Published: 24 May 2023;  doi: 10.21926/aeer.2302034

As the climate crisis has progressed, scientists have begun to ask, "How does a rapidly warming ecosystem impact human behavior?" As aggression scholars and non-professional environmentalists, it has become increasingly clear that the impact of the climate crisis, without intervention, will dramatically increase humans' exposure to risk factors known to cause aggressive and violent behavior. This article describes a model that explains the indirect and direct effects of the climate crisis on aggression and violence [...]

by George William Nyakairu  , Muhammad Ntale  and Mariam Onize Usman

Received: 24 February 2023;  Published: 24 May 2023;  doi: 10.21926/aeer.2302033

Developing adsorbents with appreciable morphology will create new approaches for better phosphate adsorption performance. This study aims to investigate the design of an adsorbent by impregnating silver nanoparticles (AgNPs) onto calcium oxide-activated carbon (CaO-AC). The Ag/CaO-AC nanocomposite was used as an adsorbent to remove phosphate. Batch adsorption studies were performed to evaluate the effects of adsorbent dose, initial phosphate concentration, contact time, and pH on removing phosphate from an aqueous [...]

by Marcel Torrent

Received: 16 November 2022;  Published: 15 May 2023;  doi: 10.21926/aeer.2302032

This article quantifies the recycling potential of the metallic materials that make up three-phase induction motors. The data on the use of electric motors by type and power determines that the most significant recycling potential lies in this low-voltage motor which powers up to 75 kW. The work aims to show the possibility of such recycling in the European Union (EU). The metals used to make the various parts of the induction motor and the main recycling methods that allow their reuse are listed. It evaluates whic [...]

by Daniel Thiel

Received: 21 February 2023;  Published: 15 May 2023;  doi: 10.21926/aeer.2302031

This research aims to model and compare two strategies for locating new hydrogen refueling stations (HRS) in a context of high uncertainty on H2 demand and on the spatial distribution of demand points. The first strategy S1 represented by an agent-based model integrating a particle swarm optimization metaheuristic consists of finding the best HRS locations by adapting to the real evolution of the demand. A second strategy S2 consists in solving a classical capacitated p-median problem based on H2 consumption foreca [...]

by Sonica Sondhi  , Navleen Kaur Chopra  , Aditya Kumar  and Naveen Gupta

Received: 21 February 2023;  Published: 05 May 2023;  doi: 10.21926/aeer.2302030

A multicopper oxidase, laccases catalyze the four-electron reduction of the substrate with the use of molecular oxygen. Laccases are abundant in nature and can be found in virtually every form of life on the planet. Generally speaking, laccases are classified into three types: blue, white, and yellow. Plant, bacterial and fungal laccases all have the same trinuclear copper site for substrate reduction. Non-phenolic as well as phenolic molecules are both capable of being catalyzed by this enzyme. Laccases are used i [...]