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Toxicity of Pesticides on Health and Environment

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889456444 Year: Pages: 124 DOI: 10.3389/978-2-88945-644-4 Language: English
Publisher: Frontiers Media SA
Subject: Medicine (General) --- Public Health
Added to DOAB on : 2019-01-23 14:53:43
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Public policy is regularly shaken by health crises or unexpected discoveries; future directions in toxicology assessment are therefore urgently needed. Convergent evidences suggest endocrine or nervous disrupting effects of pesticides, as well as effects on wildlife and the environment. These effects are amplified by the use of surfactants and/or combinations of different active principles. The usual concepts of regulatory toxicology are challenged by endocrine, nervous or immune disruption, or epigenetic effects. Indeed, most pollutants alter cell-cell communication systems to promote chronic diseases. They may accumulate in the food chain. Mixtures effects with other pollutants may change their bioavailability and their toxicity. The lack of scientific knowledge in these matters has large costs for public health. This Research Topic focuses on the toxic effects of pesticides associated with large scale cultivation of genetically modified (GM) plants.

Pesticides - Use and Misuse and Their Impact in the Environment

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ISBN: 9789535179986 9781838800475 9781838800482 Year: Pages: 136 DOI: 10.5772/intechopen.78909 Language: English
Publisher: IntechOpen
Subject: Plant Sciences
Added to DOAB on : 2019-10-03 07:51:53

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The book, ""Pesticides - Use and Misuse and their Impact in the Environment"", contains relevant information on diverse pesticides encountered in both anthropogenic and natural environments. This book provides valuable information about the toxicity of several agrochemicals that can negatively influence the health of humans and ecosystems.

In Catastrophic Times: Resisting the Coming Barbarism

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Book Series: Critical Climate Change ISBN: 9781785420092 9781785420108 9781785420221 Year: Pages: 156 DOI: 10.14619/016 Language: English
Publisher: Open Humanities Press
Subject: Environmental Sciences
Added to DOAB on : 2017-04-16 00:08:00
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There has been an epochal shift: the possibility of a global climate crisis is now upon us. Pollution, the poison of pesticides, the exhaustion of natural resources, falling water tables, growing social inequalities – these are all problems that can no longer be treated separately. The effects of global warming have a cumulative impact, and it is not a matter of a crisis that will “pass” before everything goes back to “normal.” Our governments are totally incapable of dealing with the situation. Economic warfare obliges them to stick to the goal of irresponsible, even criminal, economic growth, whatever the cost. It is no surprise that people were so struck by the catastrophe in New Orleans. The response of the authorities – to abandon the poor whilst the rich were able to take shelter – is a symbol of the coming barbarism.

Modern Sample Preparation Approaches for Separation Science

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ISBN: 9783039214112 / 9783039214129 Year: Pages: 282 DOI: 10.3390/books978-3-03921-412-9 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General) --- Analytical Chemistry
Added to DOAB on : 2019-12-09 11:49:15
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This book will provide the most recent knowledge and advances in Sample Preparation Techniques for Separation Science. Everyone working in a laboratory must be familiar with the basis of these technologies, and they often involve elaborate and time-consuming procedures that can take up to 80% of the total analysis time. Sample preparation is an essential step in most of the analytical methods for environmental and biomedical analysis, since the target analytes are often not detected in their in-situ forms, or the results are distorted by interfering species. In the past decade, modern sample preparation techniques have aimed to comply with green analytical chemistry principles, leading to simplification, miniaturization, easy manipulation of the analytical devices, low costs, strong reduction or absence of toxic organic solvents, as well as low sample volume requirements.Modern Sample Preparation Approaches for Separation Science also provides an invaluable reference tool for analytical chemists in the chemical, biological, pharmaceutical, environmental, and forensic sciences.

Keywords

vitamins --- extraction --- determination --- review --- sample preparation --- matrix solid phase dispersion --- sorbent --- miniaturization --- on-line --- blueberry --- non-anthocyanin polyphenol --- vortex-assisted dispersive liquid-liquid microextraction --- response surface methodology --- desirability function approach --- nail --- curie temperature --- high-frequency heating --- liquid chromatography–tandem mass spectrometry --- caffeine --- amlodipine --- gas chromatography --- hydrogel --- hormones --- pectin --- polyvinyl alcohol --- sample preparation --- in-tube SPME --- UHPLC-MS/MS --- organic-based monoliths --- antipsychotics --- plasma samples --- schizophrenic’ patients --- salting-out assisted liquid–liquid extraction --- sugaring-out assisted liquid–liquid extraction --- hydrophobic-solvent assisted liquid–liquid extraction --- subzero-temperature assisted liquid–liquid extraction --- phenolic compounds --- sorbent-based techniques --- multi-spheres adsorptive micro-extraction (MSA?E) --- floating sampling technology --- caffeine and acetaminophen tracers --- environmental water matrices --- vortex-assisted dispersive liquid-liquid microextraction --- China herbal tea --- pesticides residue --- aflatoxins --- UPLC-MS/MS --- vortex-synchronized matrix solid-phase dispersion --- crab shells --- ionic liquids --- anthraquinones --- Cassiae Semen --- sample preparation --- nanocomposite --- pathogenic --- enrichment --- nucleic acid isolation --- sample preparation with TLC/HPTLC --- solvent front position extraction --- solvent delivery with a moving pipette --- automation --- LC–MS/MS --- environmental analysis --- whole water --- trace analysis --- SPE --- large volume --- in-line filter --- sand --- flow rate --- pharmaceuticals --- hormones --- pesticides --- space instrumentation --- liquid chromatography --- oligopeptides --- trapping system --- membrane-based microextraction --- barbiturates --- simultaneous determination --- whole blood --- urine --- liver --- sample preparation --- oxylipins --- protein precipitation --- liquid–liquid extraction --- solid-phase extraction --- biological samples --- chlorophenoxy acid herbicides --- HPLC --- hydrophobic in-tube solid-phase microextraction --- poly (OMA-co-TRIM) monolithic column --- rice grains --- gold --- sample preparation --- preconcentration --- geological samples

Solid Phase Extraction: State of the Art and Future Perspectives

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ISBN: 9783039211586 / 9783039211593 Year: Pages: 176 DOI: 10.3390/books978-3-03921-159-3 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General)
Added to DOAB on : 2019-08-28 11:21:27
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This book is a collection of 13 innovative papers describing the state of the art and the future perspectives in solid-phase extraction covering several analytical fields prior to the use of gas or liquid chromatographic analysis. New sorptive materials are presented including carbon nanohorn suprastructures on paper support, melamine sponge functionalized with urea–formaldehyde co-oligomers, chiral metal–organic frameworks, UiO-66-based metal–organic frameworks, and fabric phase sorptive media for various applications. Solid-phase extraction can be applied in several formats aside from the conventional cartridges or mini-column approach, e.g., online solid-phase extraction, dispersive solid-phase microextraction, and in-syringe micro-solid-phase extraction can be very helpful for analyte pre-concentration and sample clean-up. Polycyclic musks in aqueous samples, 8-Nitroguanine in DNA by chemical derivatization antibacterial diterpenes from the roots of salvia prattii, perfluoroalkyl substances (PFASs) in aater samples by bamboo charcoal-based SPE, parabens in environmental water samples, benzotriazoles as environmental pollutants, organochlorine pesticide residues in various fruit juices and water samples and synthetic peptide purification are among the applications cited in this collection. All these outstanding contributions highlight the necessity of this analytical step, present the advantages and disadvantages of each method and focus on the green analytical chemistry guidelines that have to be fulfilled in current analytical practices.

Multi-Walled Carbon Nanotubes

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ISBN: 9783039212293 / 9783039212309 Year: Pages: 184 DOI: 10.3390/books978-3-03921-230-9 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Chemical Engineering
Added to DOAB on : 2019-08-28 11:21:27
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Since their discovery, multi-walled carbon nanotubes (MWCNTs) have received tremendous attention due to their unique electrical, optical, physical, chemical, and mechanical properties. Remarkable advances have been made in the synthesis, purification, structural characterization, functionalization, and application of MWCNTs. Their particular characteristics make them well suited for a plethora of applications in a number of fields, namely nanoelectronics, nanofluids, energy management, (electro)catalysis, materials science, construction of (bio)sensors based on different detection schemes, multifunctional nanoprobes for biomedical imaging, and sorbents for sample preparation or removal of contaminants from wastewater. They are also useful as anti-bacterial agents, drug delivery nanocarriers, etc. The current relevant application areas are countless. This Special Issue presents original research and review articles that address advances, trends, challenges, and future perspectives regarding synthetic routes, structural features, properties, behaviors, and industrial or scientific applications of MWCNTs in established and emerging areas.

Keywords

water based nanofluid --- carbon-nanotubes --- boundary layer --- heat generation --- thermal radiation --- curved stretching sheet --- numerical solution --- Single-Walled Carbon Nanotube (SWCNT) --- Multi-Walled Carbon Nanotube (MWCNT) --- MHD --- Casson model --- stretching sheet --- non-linear thermal radiation --- HAM --- zeolitic imidazolate framework --- multi-walled carbon nanotubes --- magnetic solid phase extraction --- organochlorine pesticides --- agricultural irrigation water --- Pd-CNT nanohybrids --- functionalized CNTs --- polarity --- semi-homogeneous catalysis --- heck reaction --- nanomaterials --- multi-walled carbon nanotubes --- synthesis methods --- electrochemical properties --- electrochemical sensors --- electroanalysis --- sensing applications --- multiwalled carbon nanotubes --- gold(I) --- gold(III) --- adsorption --- elution --- gold nanoparticles --- adsorption --- multi-walled carbon nanotubes --- nonylphenol --- kinetics --- multi-walled carbon nanotubes --- graphene oxide --- cerium oxide --- lubricating oil additives --- multi-wall carbon nanotube (MWCNT) --- azide-alkyne click chemistry --- RAFT polymerization --- PMMA --- carbon nanotubes --- composites --- radar absorbing materials --- complex permittivity --- chloride diffusion --- cement mortars --- carbon nanotubes --- mechanical properties --- electrical properties --- hydrophobic drugs --- drug delivery --- functionalized carbon nanotubes --- dissolution rate --- nanomedicine --- polymeric composites --- silicone rubber --- Ionic liquid --- carbon materials --- structural --- EMI shielding --- n/a

Advances in Chitin/Chitosan Characterization and Applications

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ISBN: 9783038978022 9783038978039 Year: Pages: 414 DOI: 10.3390/books978-3-03897-803-9 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Biochemistry
Added to DOAB on : 2019-04-25 16:37:17
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Functional advanced biopolymers have received far less attention than renewable biomass (cellulose, rubber, etc.) used for energy production. Among the most advanced biopolymers known is chitosan. The term chitosan refers to a family of polysaccharides obtained by partial de-N-acetylation from chitin, one of the most abundant renewable resources in the biosphere. Chitosan has been firmly established as having unique material properties as well as biological activities. Either in its native form or as a chemical derivative, chitosan is amenable to being processed—typically under mild conditions—into soft materials such as hydrogels, colloidal nanoparticles, or nanofibers. Given its multiple biological properties, including biodegradability, antimicrobial effects, gene transfectability, and metal adsorption—to name but a few—chitosan is regarded as a widely versatile building block in various sectors (e.g., agriculture, food, cosmetics, pharmacy) and for various applications (medical devices, metal adsorption, catalysis, etc.). This Special Issue presents an updated account addressing some of the major applications, including also chemical and enzymatic modifications of oligos and polymers. A better understanding of the properties that underpin the use of chitin and chitosan in different fields is key for boosting their more extensive industrial utilization, as well as to aid regulatory agencies in establishing specifications, guidelines, and standards for the different types of products and applications.

Keywords

aerogels --- chitosan --- ionic liquids --- ionogels --- zinc–chitosan complexes --- characterization --- bio-sorbent --- phosphate --- adsorption --- mechanism --- thermodynamic --- chitosan --- hydrogel --- phase transition --- gelation mechanism --- chitosan --- defense responses --- fruits --- nanoparticles --- plant growth --- pesticides --- Boron --- chitosan --- iron(III) hydroxide --- neodymium --- sorption --- chitin --- chitosan --- chitosan derivative --- chitin derivative --- oral care --- skin care --- hear care --- marine resources --- over-the counter-drug --- polymer carrier --- chitin --- chitosan --- nanostructured biomaterial --- polymer --- self-masking nanosphere lithography --- cicada --- chitosan --- self-assembled --- polyelectrolyte complex --- nanoparticle --- drug delivery --- Citrobacter --- biosynthesis --- bioflocculant --- chitosan --- metabolic pathway --- PEO/chitosan blend --- swelling --- mechanical properties --- wet and dried states --- chitosan --- biological activity --- medical applications --- chitosan --- PCL --- strontium --- scaffolds --- craniofacial engineering --- chitin --- chitosan --- derivatization --- controlled functionalization --- click chemistry --- graft copolymer --- cyclodextrin --- dendrimer --- ionic liquids --- chitin deacetylases --- chitosan --- chitooligosaccharides --- carbohydrate esterases --- structure --- substrate specificity --- deacetylation pattern --- binary --- chitosan --- desorption --- iron --- lead --- mercury --- salt effects --- single --- sorption competition --- chitosan supported copper --- heterogeneous catalyst --- organosilicon compound --- easily recyclable --- chitosan --- papermaking --- wet-end --- coating --- wastewater --- ionic cross-linking --- eco-friendly formulations --- thermal transition sol-gel --- drug delivery systems --- MTDSC --- DSC --- gene delivery --- non-viral vectors --- chitosan structure --- pDNA --- siRNA --- TEOS --- methylene blue --- chitosan --- modelling --- cross-linking --- interpenetrating --- XRD --- FTIR

Efficiency of Bank Filtration and Post-Treatment

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ISBN: 9783039213054 / 9783039213061 Year: Pages: 352 DOI: 10.3390/books978-3-03921-306-1 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:15
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Riverbank filtration (RBF) schemes for the production of drinking water are increasingly challenged by new constituents of concern, such as organic micropollutants and pathogens in the source water and hydrological flow variations due to weather extremes. RBF and new technology components are integrated and monitoring and operating regimes are adopted to further optimize water treatment in bank filtration schemes for these new requirements. This Special Issue presents results from the EU project AquaNES “Demonstrating synergies in combined natural and engineered processes for water treatment systems” (www.aquanes.eu). Additionally, papers from other research groups cover the efficiency of bank filtration and post-treatment, advantages and limitations of combining natural and engineered processes, parameter-specific assessment of removal rates during bank filtration, and the design and operation of RBF wells. The feasibility, design, and operation of RBF schemes under specific site conditions are highlighted for sites in the US, India, and South Korea

Keywords

riverbank filtration --- removal efficacy --- dissolved organic carbon (DOC) --- pesticides --- pharmaceutical residues --- riverbank filtration --- organic matter degradation --- manganese --- riverbed --- climate change --- floods --- droughts --- column experiments --- PHREEQC --- decentralized capillary nanofiltration --- anoxic --- suboxic --- organic micropollutants --- bank filtrate --- groundwater --- sulphate --- dissolved organic matter --- high temperature --- sub-oxic conditions --- organic matter composition --- PARAFAC-EEM --- LC-OCD --- redox sensitivity --- micropollutants --- oxypurinol --- gabapentin --- river bank filtration --- hydrological trends --- sustainable water production --- well structure remodeling --- point-bar alluvial setting --- riverbank filtration --- site investigation --- hydrochemistry --- subsurface geology --- riverbank filtration --- organic micropollutants --- water quality --- environmental monitoring --- riverbank filtration --- collector wells --- performance --- entrance velocity --- river bank filtration --- attenuation --- organic micropollutants --- pharmaceuticals --- riverbank filtration --- small communities --- disinfection by-products --- trihalomethanes --- riverbank filtration (RBF) --- Krishna River --- southern India --- water treatment --- water quality --- salinity --- river bank filtration --- ultrafiltration --- surface water treatment --- energy efficiency --- out/in membrane comparison --- inline electrolysis --- bank filtration --- biofilm --- clogging --- filter cake --- pathogen barrier --- pressure loss --- slow sand filtration --- electro-chlorination --- smart villages --- disinfection --- river bank filtration --- rural water supply, online monitoring --- dissolved organic matter --- fluorescence excitation-emission matrix --- LC-OCD --- Nakdong River --- riverbank filtration --- bank filtration --- drinking water treatment --- inorganic chemicals --- organic micropollutants --- Ganga --- Yamuna --- Damodar --- riverbank filtration --- water quality --- organic carbon --- nitrate --- heavy metals --- microorganisms --- riverbank filtration --- riverside water source --- analytical method --- mirror-image method --- optimization --- riverbank filtration --- water quality --- bank filtrate portion --- iron --- manganese --- microorganisms --- system costs --- water supply --- storage tank --- drinking water hydropower --- turbine --- energy generation --- renewable energy

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