Critical Reviews in Environmental Science and Technology (CRIT REV ENV SCI TEC )

Publisher: Taylor & Francis


Topics: Waste and wastewater treatment; Fate and transport of contaminants; Bioremediation; Soil contamination; Wetland function and design; Waste reduction, recycling, and reuse; Air, soil, and water contaminant biogeochemistry; Risk assessment and management; Environmental toxicology and epidemiology.

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    Critical reviews in environmental science and technology (Online), Critical reviews in environmental science and technology, CRC journals critical reviews in environmental science and technology
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    Document, Periodical, Internet resource
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Taylor & Francis

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    • Publisher last contacted on 25/03/2014
    • 'Taylor & Francis (Psychology Press)' is an imprint of 'Taylor & Francis'
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Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Delineating accurate nutrient fluxes and distributions in multimedia environments requires the integration of vast amounts of information. Such nutrient flows may be related to atmospheric deposition, agricultural runoff, and urbanization effect on surface and groundwater systems. Two types of significant undertakings for nutrient management have been in place for sustainable development. While many environmental engineering technologies for nutrient removal have been developed to secure tap water sources and improve the drinking water quality, various watershed management strategies for eutrophication control are moving to highlight the acute need for monitoring the dynamics and complexities that arise from nutrient impacts on water quality status and ecosystem state, both spatially and temporally. These monitoring methods and data are associated with local point measurements, air-borne remote sensing, and space-borne satellite images of spatiotemporal nutrient distributions leading to the generation of accurate environmental patterns. Within this context, several key water quality constituents, including total nitrogen, total phosphorus, chlorophyll-a concentration, colored dissolved organic matter (dissolved organic carbon or total organic carbon), harmful algal blooms (e.g., cyanobacterial toxins or microcystin concentrations), and descriptors of ecosystem states, such as total suspended sediment (or turbidity), transparency (e.g., Secchi disk depth), and temperature, will be of major concern. Considering the advancements, challenges, and accomplishments related to remote sensing technologies in the past four decades, we present a thorough literature review of contemporary state-of-the-art technologies of remote sensing platforms and sensors that may be employed to support essential scientific missions, and provide an in-depth discussion and new insight into various inversion methods (or models) to improve the estimation accuracy. In this study, the spectrum of these remote sensing technologies and models is first divided into groups based on chronological order associated with different platforms and sensors, although some of them may be subject to mission-oriented arrangements. Case-based and location-based studies were cited, organized, and summarized to further elucidate tracks of application potential that support future, forward-looking, cost-effective, and risk-informed nutrient management plans. The comprehensive reviews presented here should echo real-world observational evidence by using integrated sensing, monitoring, and modeling techniques to improve environmental management, policy analysis, and decision making.
    Critical Reviews in Environmental Science and Technology 01/2015; 45(2).
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    ABSTRACT: Water quality criteria are an indispensable part of water recycling projects aiming to ensure the protection of public health and the environment. In addition, criteria can affect the development, public acceptance and the economic viability of water recycling projects. Currently no uniform criteria exist, but they diverge, often greatly, between countries/states. Here we briefly present the evolution of recycling criteria worldwide and discuss emerging issues related to ecological and public health risks that have not addressed adequately in existing criteria. We specifically focus on EU countries and present their water recycling status based on the published data and the existing (or non-existing) recycling frameworks. Data gathered from public agencies reveal a high potential for recycling in the EU that could potentially contribute to ensuring that fresh water is available for all sectors and to protect the environment, but it has not expanded at the expected rates. The lack of water recycling criteria was thought as the most important cause for this delay. In the last decade, however, several countries and particularly these located in the Mediterranean basin, established relevant regulations. Similarities and differences as well as potential benefits and drawbacks of these regulations are discussed and interpreted with these of the other world. Moreover major challenges, the future views, and the necessity for establishing common regulations at an EU level are considered.
    Critical Reviews in Environmental Science and Technology 01/2015; (in press).
  • [Show abstract] [Hide abstract]
    ABSTRACT: Conventional water treatment consumes large quantities of coagulant and produces even greater volumes of sludge. Coagulant recovery (CR) presents an opportunity to reduce both the sludge quantities and the costs they incur, by regenerating and purifying coagulant before reuse. Recovery and purification must satisfy stringent potable regulations for harmful contaminants, while remaining competitive with commercial coagulants. These challenges have restricted uptake and lead research towards lower-gain, lower-risk alternatives. This review documents the context in which CR must be considered, before comparing the relative efficacies and bottlenecks of potential technologies, expediting identification of the major knowledge gaps and future research requirements.
    Critical Reviews in Environmental Science and Technology 12/2014; 44(24).
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    ABSTRACT: Advanced oxidation processes (AOPs) constitute important, promising, efficient, and environmental-friendly methods developed to principally remove persistent organic pollutants (POPs) from waters and wastewaters. Generally, AOPs are based on the in situ generation of a powerful oxidizing agent, such as hydroxyl radicals (•OH), obtained at a sufficient concentration to effectively decontaminate waters. This critical review presents a precise and overall description of the recent literature (period 1990–2012) concerning the main types of AOPs, based on chemical, photochemical, sonochemical, and electrochemical reactions. The principles, performances, advantages, drawbacks, and applications of these AOPs to the degradation and destruction of POPs in aquatic media and to the treatment of waters and waste waters have been reported and compared.
    Critical Reviews in Environmental Science and Technology 12/2014; 44(23).
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    ABSTRACT: Nitrate contamination of drinking water sources has become one of the most important water quality concerns across the United States. Nitrate presents unique water treatment challenges and small water systems are particularly affected by the high costs of addressing nitrate impacted supplies. The goal of this investigation was to provide an overview of nitrate treatment options, highlighting the most recent advances and elucidating costs and common problems in application. No single treatment option is ideal for all situations; new technologies continue to be investigated to effectively remove nitrate while limiting cost and maximizing sustainability.
    Critical Reviews in Environmental Science and Technology 10/2014; 44(20).
  • Critical Reviews in Environmental Science and Technology 10/2014;
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    ABSTRACT: Phosphorus is known to be an important contributor to eutrophication of aquatic systems,1 but the role of organic phosphorus is often overlooked. This review uses a meta-analysis approach to investigate inorganic and organic phosphorus in organic fertilizers, soils and waters, including the quantification of organic phosphorous forms such as monoesters, diesters, and inositol hexakisphosphate. Across these media, organic phosphorus comprised 22–46% of the total phosphorus (by mass of phosphorus). Bioavailable organic phosphorus appears to be more mobile than recalcitrant forms. Organic phosphorus may represent a significant risk for eutrophication, and the risk may vary according to the season, but conclusions are hampered by a lack of data.
    Critical Reviews in Environmental Science and Technology 10/2014; 44(19).
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    ABSTRACT: Historically, municipal solid waste landfills have been designed and operated as disposal facilities with suboptimal degradation under anaerobic conditions, resulting in slow waste stabilization and generation of landfill gas rich in methane and high strength leachate. Recently, aerobic bioreactor landfilling is being promoted as a promising method that enhances waste stabilization while producing a relatively weaker leachate and no methane generation. The authors review transformation processes and benefits associated with aerobic bioreactor landfilling. Factors affecting the operation of aerobic bioreactor landfills were detailed and performance indicators were defined with technical and operational considerations. The article emphasizes conditions for economic viability of the technology and concludes with outlining existing gaps and future research needs to improve the understanding and performance of aerobic bioreactor landfilling.
    Critical Reviews in Environmental Science and Technology 08/2014; 44(16).
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    ABSTRACT: The monitoring of human exposures to diesel exhaust continues to be a vexing problem for specialists seeking information on the potential health effects of this ubiquitous combustion product. Exposure biomarkers have yielded a potential solution to this problem by providing a direct measure of an individual's contact with key components in the exhaust stream. Spurred by the advent of new, highly sensitive, analytical methods capable of detecting substances at very low levels, there have been numerous attempts at identifying a stable and specific biomarker. Despite these new techniques, there is currently no foolproof method for unambiguously separating diesel exhaust exposures from those arising from other combustion sources.Diesel exhaust is a highly complex mixture of solid, liquid, and gaseous components whose exact composition can be affected by many variables, including engine technology, fuel composition, operating conditions, and photochemical aging. These factors together with those related to exposure methodology, epidemiological necessity, and regulatory reform can have a decided impact on the success or failure of future research aimed at identifying a suitable biomarker of exposure. The objective of this review is to examine existing information on exposure biomarkers for diesel exhaust and to identify those factors and trends that have had an impact on the successful identification of metrics for both occupational and community settings. The information will provide interested parties with a template for more thoroughly understanding those factors affecting diesel exhaust emissions and for identifying those substances and research approaches holding the greatest promise for future success.
    Critical Reviews in Environmental Science and Technology 08/2014; 44(16).
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    ABSTRACT: Cyanobacteria (blue-green algae) are most primitive prokaryotic photosynthetic organisms, that have survived and flourished on the planet for more than three billion years and produced the oxygen that enabled aerobic metabolism. Anabaena is a genus of filamentous cyanobacteria, known for its nitrogen fixing abilities and is one of cyanobacterial genera that produce toxins. Because of plasmid DNA, the non-toxic strain of Anabaena flos-aquae, transformed into a toxic strain that producing neuro-toxins. The major toxins those were produced by this species are anatoxin-a, homoanatoxin-a and anatoxin-a(s). Presence of these toxins in the source of fresh water makes water toxic and every year so many reports on death of animals were documented. Several studies have been done over this toxic cyanobacteriam and showed that under controlled environment this species is very useful for human being. However presence of this alga in the water sources makes environment toxic. Several analytical methods were reported for the detection of these toxins. The present review will be focused on the detailed literature survey on fresh water cyanobacteriam, Anabaena flos-aquae, with respect to its importance and cure.
    Critical Reviews in Environmental Science and Technology 07/2014; 44(18):1995-2037.
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    ABSTRACT: This review examines the potential environmental impact of radiofrequency (RF) fields emitted by mobile phone base station antennas and other sources of RF radiation. Overall, many alarming investigations were found but most are characterised by severe methodological shortcomings. For this reason these studies do not provide any evidence that observed biological effects are associated with exposure to the electromagnetic fields. So far, the studies do not prove that environmental exposures to mobile phone base station radiation (and other environmental RF exposures) are harmful to wildlife.
    Critical Reviews in Environmental Science and Technology 06/2014; 44(12).
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    ABSTRACT: Online drinking water quality monitoring technologies have made significant progress for source water surveillance and water treatment plant operation. The use of these technologies in the distribution system has not been favorable due to the high costs associated with installation, maintenance, and calibration of a large distributed array of monitoring sensors. This has led to a search for newer technologies that can be economically deployed on a large scale. This paper includes a brief description of important parameters for drinking water and current available technologies used in the field. The paper also provides a thorough review of the advances in sensor technology for measurement of common water quality parameters (pH, turbidity, free chlorine, dissolved oxygen, and conductivity) in drinking water distribution systems.
    Critical Reviews in Environmental Science and Technology 06/2014; 44(12).
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    ABSTRACT: The use of chemicals by society has many benefits but contamination of the environment is an unintended consequence. One example is the organochlorine compound hexachlorocyclohexane (HCH). During the 1980s, when HCH was banned in many countries, the brominated flame retardant, hexabromocyclododecane (HBCD), found increasing use. The persistent, bioaccumulative, and toxic characteristics of HBCD are, 30 years later, likely to warrant global action on production and use under the Stockholm Convention on persistent organic pollutants. Historical lessons have taught us that we need to control the use of chemicals and programs are in place worldwide in an attempt to do so.
    Critical Reviews in Environmental Science and Technology 05/2014; 44(13).
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    ABSTRACT: In the last decade, extensive studies have been conducted to understand the chemical and biological processes of nanoparticles and their effects on ecological functions and human health. This review focuses on the nature and properties of natural nanoparticles (NNPs) and their influence on the physical, chemical, and biological processes in plant-soil-water systems. The NNPs are involved directly or indirectly in numerous soil processes such as aggregate formation, nutrient retention, microbial activities, and water purification and pollution mitigation and thus affect soil/environment quality and human health. This paper is intended to provide a brief review of recent progress in related fields.
    Critical Reviews in Environmental Science and Technology 05/2014;