scholarly journals Glyphosate Pollution Treatment and Microbial Degradation Alternatives, a Review

2021 ◽  
Vol 9 (11) ◽  
pp. 2322
Author(s):  
María Luisa Castrejón-Godínez ◽  
Efraín Tovar-Sánchez ◽  
Leticia Valencia-Cuevas ◽  
Marcos Eduardo Rosas-Ramírez ◽  
Alexis Rodríguez ◽  
...  

Glyphosate is a broad-spectrum herbicide extensively used worldwide to eliminate weeds in agricultural areas. Since its market introduction in the 70’s, the levels of glyphosate agricultural use have increased, mainly due to the introduction of glyphosate-resistant transgenic crops in the 90’s. Glyphosate presence in the environment causes pollution, and recent findings have proposed that glyphosate exposure causes adverse effects in different organisms, including humans. In 2015, glyphosate was classified as a probable carcinogen chemical, and several other human health effects have been documented since. Environmental pollution and human health threats derived from glyphosate intensive use require the development of alternatives for its elimination and proper treatment. Bioremediation has been proposed as a suitable alternative for the treatment of glyphosate-related pollution, and several microorganisms have great potential for the biodegradation of this herbicide. The present review highlights the environmental and human health impacts related to glyphosate pollution, the proposed alternatives for its elimination through physicochemical and biological approaches, and recent studies related to glyphosate biodegradation by bacteria and fungi are also reviewed. Microbial remediation strategies have great potential for glyphosate elimination, however, additional studies are needed to characterize the mechanisms employed by the microorganisms to counteract the adverse effects generated by the glyphosate exposure.

1998 ◽  
Vol 17 (2) ◽  
pp. 105-110 ◽  
Author(s):  
Daniel M. Byrd ◽  
William H. Benson ◽  
Keith R. Solomon ◽  
John A. Thomas ◽  
William J. Waddell

During the American College of Toxicology's Symposium on Endocrine Modulators (Valley Forge, PA, November 1996), the speakers evaluated relevant scientific information and discussed three general ideas, as follows: (1) The available epidem iological data are inconsistent with significant increases in observed human health effects that might relate to the modulation of the endocrine system. (2) Environm ental contarn in ants have produced toxic effects in wildlife at specific locations. In select instances, the adverse effects observed may involve modulation of endocrine pathways. (3) Additional research focused on endocrine modulation is desirable in order to address this issue within a sound, scientificframework.


2013 ◽  
Vol 726-731 ◽  
pp. 175-178
Author(s):  
Zhi Min Cao ◽  
Zhen Zhen Wu ◽  
Zhi Fen Lin

There is an essential need to use computation-based quantitative structureactivity relationship (QSAR) modeling for providing information about the physicochemical properties of chemicals and their environmental fate as well as their human health effects. The major aims of this paper is to explore ways to predict and to identify hazardous combinations of chemicals relevant to humans and the environment. So we use QSAR modeling for toxicological predictions determine the potential adverse effects of reactive organic compounds in risk assessment.


2020 ◽  
Vol 42 (3) ◽  
pp. 25-25

Abstract The Strategic Approach to International Chemicals Management (SAICM) has published a policy brief that addresses chemicals of concern in products such as textiles, toys, building materials, and electronics, and efforts to minimize their adverse effects on human health and the environment. The policy brief titled, “Understanding Chemicals in Products,” is a contribution from the Global Environment Facility (GEF)-funded project on “Global Best Practices on Emerging Chemical Policy Issues of Concern under SAICM.”


Atmosphere ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 462
Author(s):  
Manousos-Ioannis Manousakas

Research related to ambient particulate matter (PM) remains very relative today due to the adverse effects PM have on human health. [...]


2015 ◽  
Vol 26 (3) ◽  
pp. 389-406 ◽  
Author(s):  
Maria Francesca Milazzo ◽  
Francesco Spina

Purpose – The purpose of this paper is to quantify the human health impacts of soy-biodiesel production with the aim to discuss about its environmental sustainability. Design/methodology/approach – The integrated use of two current approaches, risk assessment (RA) and life cycle assessment (LCA), has allowed improvement of the potentialities of both in obtaining a more complete analysis. The implementation of a life cycle indicator for the assessment of the impacts on the human health, integrating the features of both approaches, is the main focus of this paper. Findings – It has been found that, although the biodiesel is a green fuel, it has some criticalities in its life cycle, which cannot be disregarded. In fact, even if biodiesel is essentially a clean fuel there are some phases, prior to the industrial phase, that can cause negative effects on human health and ecosystems. Practical implications – Results suggest some measures which can be adopted to substantially reduce human health impacts. Further alternative could be analysed in future to gain more insight about the use of biodiesel fuels. Originality/value – The estimation of the impacts of a process producing biodiesel has been made by using a novel approach. The novelty is associated with the calculation of the impacts on human health by using the transfer factors applied in RA. The use of such factors, properly modified in order to estimate the impacts on a wider scale than a site-dimension, allows defining a holistic approach, as LCA and RA are used as complete units but at the same time can be related to each other.


2009 ◽  
Vol 7 (S1) ◽  
pp. S75-S93 ◽  
Author(s):  
Mark D. Sobsey ◽  
Suresh D. Pillai

A consideration of available evidence for some known and well-characterized waterborne pathogens suggests that the diversity of pathogen virulence mechanisms and properties is too great to specifically predict the emergence and future human health impacts of new waterborne pathogens. However, some future emerging pathogens are existing microbes that will be discovered to cause disease. Some will arise from existing ones by either predictable evolutionary and adaptation changes or by unpredictable changes involving a variety of biotic and abiotic mechanisms. Many, and perhaps most, emerging waterborne human pathogens will be zoonotic agents or come from other non-human reservoirs. The emergence of some waterborne pathogens will be related to antibiotic use, resulting in emerging antibiotic-resistant waterborne pathogens. Reliably predicting pathogen emergence and human health effects based on VFARs or other properties of microbes and their hosts is not possible at this time. This is because of (1) the diversity of microbes and their virulence and pathogenicity properties, (2) their ability to change unpredictably, (3) their intimate and diverse interrelationships with a myriad of hosts and dynamic natural and anthropogenic environments and (4) the subtle variations in the immune status of individuals. The best available approach to predicting waterborne pathogen emergence is through vigilant use of microbial, infectious disease and epidemiological surveillance. Understanding the microbial metagenome of the human body can also lead to a better understanding of how we define and characterize pathogens, commensals and opportunists.


Author(s):  
PA Ganichev

Introduction: Polymer products have become inexpensive, convenient and widely used in all spheres of everyday life recently. Microplastics are found in seawater, wastewater, fresh water, foodstuffs, and air. Over the past few years, the presence of microplastics in treated tap and bottled water has been reported, raising questions and concerns about their potential human health effects. Objective: To summarize and systematize the results of studying health effects of exposure to microplastics in potable water. Materials and methods: A literature review was done based on ten topical articles and reviews published in 2014–2021 out of 64 sources found in the PubMed and Scopus international databases and the Russian Science Citation Index (RSCI). Results and conclusions: Generalization and systematization of the published research data demonstrated the lack of strong evidence to draw conclusions about human health effects of microplastics. Information on toxicokinetics and toxicodynamics of ingested microplastic particles is absent just like the studies of the most common shapes and sizes of plastic particles and health risks from exposure to such particles in drinking water.


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