Miljøvidenskab, miljøteknik og miljøteknologi

Arsenic contamination in drinking water and associated adverse outcomes is one of the major health issues in more than 50 countries worldwide. The scenario is getting even more detrimental with increasing number of affected people and newer sites reported from all over the world. Apart from drinking water, the presence of arsenic has been found in various other dietary sources. Threatening the health of millions of people due to arsenic¿s toxicity and carcinogenicity, the major routes of arsenic exposure for humans are either through drinking water or crops. This edited volume brings together a diverse group of environmental science, sustainability, and health researchers to address the challenges posed by global mass poisoning caused by arsenic water contamination. The book sheds light on this global environmental issue and proposes solutions to aquatic contamination through multi-disciplinary sustainable approaches and case studies from different parts of world. This book addresses the problem of arsenic by pursuing a holistic approach. It presents the status quo in different parts of the world and provides essential information on food-related arsenic exposure risks for humans and possible preventive and curative measures for tackling arsenic poisoning. The mechanisms of arsenic uptake, translocation, and distribution in plants and grains are also explained. In closing, the book reviews a variety of prospective sustainable solutions to the problem of arsenic accumulation in soil and water.The book comprises three sections. First section describes the routes of exposure to environmental arsenic and its transport in soil and aquatic ecosystems including its source and distribution in specific locations. Second section explains the health risks linked to arsenic exposure in food and the environment. Third section addresses sustainable arsenic contamination mitigation strategies using the potential applications of recent biotechnological techniques, bioremediation, phytoremediation, genetic engineering, nanotechnology, and in silico approaches.The book is intended for a broad audience including researchers, scientists, and readers with diverse backgrounds including agriculture, environmental science, food science, environmental management, and human health. It can also be used as an important reference guide for undergraduate and graduate students, university faculties, and environmentalists. The book may serve as a reference to environment and sustainability researchers, students, and policy makers.

This book looks deeply into the prospects for using ethanol as a greener alternative to fossil fuels and the technical and scientific issues that surround them. Ethanol, with its numerous advantages, has emerged as a promising contender to replace gasoline as a fuel source. Currently, it is commercially available as a blend with gasoline, commonly known as E10 and E25, utilizing various ratios of ethanol. Despite its clear benefits over gasoline, the widespread adoption of ethanol as a fuel remains hindered by its limited availability. In this insightful book, we aim to explore the multifaceted challenges surrounding ethanol's full integration into our energy landscape, employing a comprehensive approach through review manuscripts. Leading worldwide experts, known for their deep understanding of ethanol as a fuel, have contributed to the book. Their valuable insights and contributions enrich the book's content, offering readersa comprehensive exploration of the subject matter. This book is a compelling resource for researchers, energy professionals, and anyone interested in understanding the challenges and opportunities associated with the integration of ethanol as a substitute for gasoline.

This volume discusses climate change impacts on groundwater quality in arid and semi-arid regions, and provides human health risk assessments due to pollution of surface and groundwater. The book presents recent trends in monitoring groundwater management and implementing pollution mitigation strategies, including practices involving remote sensing and GIS techniques, entropy water quality index, weighted arithmetic water quality index, fuzzy logic applications, and improved irrigation methods. The book also outlines hydrological processes in arid and semi-arid regions and hydrochemical properties of surface and groundwater as a necessary background for understanding how pollution impacts groundwater quality and resources, and how geographical modeling of hydrological processes can aid in human health risk assessments. The book is intended for academics, administrators, policymakers, social scientists, and professionals involved in the various aspects of climate change impact on groundwater quality, hydrological process, pollution mitigation strategies, sustainable development, and environmental planning and management. 

This book presents information on the origin and distribution of microplastics, evaluates the methods of their detection, documents their interactions with natural systems, and analyzes the current understanding of their management. Owing to the size, varied compositions, pathways of transport, accumulation and myriad processes of interactions with ecosystems, the microplastics pose severe threats to ecosystem services and natural environmental systems. Therefore, the environmental challenges that microplastics present and the strategies to mitigate their harmful impacts are of great importance to the scientific community, and only a few publications exist that collate this information in a single resource. The book aims to be a comprehensive resource for students, professionals and practitioners of environmental studies on microplastics and how to better understand the threats they pose and the practices to manage them. 

This book presents the coupled Thermo-Hydro-Mechanical-Chemical (THMC) processes in fractured rocks at varying scales from single fractures to fracture networks. It also discussed the implication and potential application of the advanced understanding of coupled THMC processes in fractured rocks for geotechnical and geo-energy engineering.

Bogen beskriver en række alternative energiløsnings muligheder, som giver inspiration og nytænkning indenfor nye energiformer, som andre kan arbejde videre med. Jørn Nielsen har udviklet flere styringer med digital udlæsning af følere, som kan aflæse en solfangers temperatur samt væske indholdet af tankens temperatur både i bunden og i toppen. I en 10-årig periode , hvor Jørn boede i Filippinerne, var han i 2006 med til at udvikle et 2 volts solcellepanel på cirka 30 watt.I bogen behandles emner om vind - sol - vand - bølge - lys -trykluft - jordvarme - strøm - brint - magnetisme - kosmisk stråling.