Endocrine-Disrupting Compounds in Water Environment: Analytics and Impact on Living Organisms

2021 ◽  
pp. 1-20
Author(s):  
Justyna Kapelewska ◽  
Urszula Kotowska ◽  
Joanna Karpińska
Keyword(s):  
Water Environment ◽  
Endocrine Disrupting Compounds ◽  
Endocrine Disrupting ◽  
Living Organisms

scholarly journals Nonylphenol and Its Ethoxylates in Water Environment

2019 ◽  
pp. 1-14 ◽  
Author(s):  
Kouakou Yao Salomon ◽  
N’doufou Gnosseith Huberson Claver ◽  
Akpo Kouakou Sylvain
Keyword(s):  
Photocatalytic Oxidation ◽  
Water Environment ◽  
Endocrine Disrupting Compounds ◽  
Inhibitory Effect ◽  
Primary Objective ◽  
Endocrine Disrupting ◽  
Removal Technologies ◽  
Living Organisms ◽  
Physical And Chemical

Endocrine disrupting compounds (EDCs), including Alkylphenols and their ethoxylates, precisely Nonylphenol and its ethoxylates, are organic molecules that are of greatest current concern because of their ability to have a toxic or an inhibitory effect on living organisms by their presence or accumulation in environment such as water, sediments, soils and atmosphere. They are used in the production of surfactants, industrial formulations, pharmaceuticals, personal care products etc... The primary objective of this article is to review the literature concerning classification of Nonylphenol and its ethoxylates based on physical and chemical characteristics and technical feasibility of their usages. It also involved different ways of their introduction into environment, analytical methods (HPLC, GC-MS, GC-MS-TOF) for their environmental detection and quantification, and finally methods for their removal. Technologies proposed for nonylphenol and its ethoxylates degradation includes biodegradation, physical processes, conventional and non-conventional adsorption-oriented processes and photodegradation processes including photocatalytic oxidation which have a potential to reach complete mineralization.

Ionic Liquids as Green Solvents for the Treatment of Endocrine Disrupting Compounds Using Liquid Membranes

2016 ◽  
Vol 5 (6) ◽  
pp. 258-270
Author(s):  
Santhi Raju Pilli ◽  
Tamal Banerjee ◽  
Kaustubha Mohanty
Keyword(s):  
Endocrine Disruptors ◽  
Liquid Membrane ◽  
Endocrine Disrupting Compounds ◽  
Membrane Technology ◽  
Liquid Membranes ◽  
Green Solvents ◽  
Endocrine Disrupting ◽  
Water And Wastewater ◽  
Living Organisms ◽  
Supported Ionic Liquid Membranes

Presence of endocrine disruptors in water and wastewater pose a serious threat to all living organisms. The removal of such disruptors is a major challenge especially most of the time they are present in trace amounts. Several technologies were tested to see if 100% removal can be achieved. Most of the existing technologies failed to achieve the target and have their own limitations. Membrane technology and especially liquid membrane technology has of late generated extreme interest among the researchers working with pollutants in trace amounts. In this work, experiments on three endocrine disruptors such as BPA, PCP and ES are carried out using supported ionic liquid membranes to see their removal efficiencies. The effects of various process parameters were studied to optimize them.

Environmental significance of atrazine in aqueous systems and its removal by biological processes: an overview

2013 ◽  
Vol 8 (2) ◽  
pp. 159-178 ◽  
Keyword(s):  
Drinking Water ◽  
Ground Water ◽  
Water Environment ◽  
Biological Processes ◽  
Biological Degradation ◽  
Environmental Significance ◽  
Carbon And Nitrogen ◽  
Carbon Nitrogen Ratio ◽  
Nitrogen Ratio ◽  
Living Organisms

Atrazine, a chlorinated s-triazine group of herbicide is one of the most widely used pesticides in the World. Due to its extensive use, long half-life and various toxic properties, it has very high environmental significance. Up to 22 mg l-1 of atrazine was found in ground water whereas permissible limit of atrazine is in ppb level in drinking water. As per Indian standard there should not be any pesticide present in drinking water. Among many other treatment processes available, Incineration, adsorption, chemical treatment, phytoremediation and biodegradation are the most commonly used ones. Biological degradation of atrazine depends upon various factors like the operating environment, external carbon and nitrogen sources, carbon/ nitrogen ratio (C/N), water content and the bacterial strain. Although, general atrazine degradation pathways are available, the specific pathways in specific conditions are not yet clearly defined. In this paper extensive review has been made on the occurrence of atrazine in surface and ground water bodies, probable sources and causes of its occurrence in water environment, the toxicity of atrazine on various living organisms and its removal by biological processes.

Nanofiltration of endocrine disrupting compounds

2003 ◽  
Vol 3 (5-6) ◽  
pp. 321-327 ◽  
Author(s):  
M. Gallenkemper ◽  
T. Wintgens ◽  
T. Melin
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Endocrine Disrupting Compounds ◽  
Municipal Wastewater Treatment ◽  
Water And Wastewater Treatment ◽  
Wide Range ◽  
Endocrine Disrupting ◽  
Municipal Wastewater Treatment Plants ◽  
Set Up

Endocrine disrupting compounds can affect the hormone system in organisms. A wide range of endocrine disrupters were found in sewage and effluents of municipal wastewater treatment plants. Toxicological evaluations indicate that conventional wastewater treatment plants are not able to remove these substances sufficiently before disposing effluent into the environment. Membrane technology, which is proving to be an effective barrier to these substances, is the subject of this research. Nanofiltration provides high quality permeates in water and wastewater treatment. Eleven different nanofiltration membranes were tested in the laboratory set-up. The observed retention for nonylphenol (NP) and bisphenol A (BPA) ranged between 70% and 100%. The contact angle is an indicator for the hydrophobicity of a membrane, whose influence on the permeability and retention of NP was evident. The retention of BPA was found to be inversely proportional to the membrane permeability.

scholarly journals Transformation of Contaminants of Emerging Concern (CECs) during UV-Catalyzed Processes Assisted by Chlorine

Catalysts ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1432
Author(s):  
Edyta Kudlek
Keyword(s):  
Hydrogen Peroxide ◽  
Water Samples ◽  
Water Environment ◽  
Toxicity Assessment ◽  
Contaminants Of Emerging Concern ◽  
Post Processing ◽  
Processing Water ◽  
Living Organisms ◽  
Trace Concentrations ◽  
By Products

Every compound that potentially can be harmful to the environment is called a Contaminant of Emerging Concern (CEC). Compounds classified as CECs may undergo different transformations, especially in the water environment. The intermediates formed in this way are considered to be toxic against living organisms even in trace concentrations. We attempted to identify the intermediates formed during single chlorination and UV-catalyzed processes supported by the action of chlorine and hydrogen peroxide or ozone of selected contaminants of emerging concern. The analysis of post-processing water samples containing benzocaine indicated the formation of seven compound intermediates, while ibuprofen, acridine and β-estradiol samples contained 5, 5, and 3 compound decomposition by-products, respectively. The number and also the concentration of the intermediates decreased with the time of UV irradiation. The toxicity assessment indicated that the UV-catalyzed processes lead to decreased toxicity nature of post-processed water solutions.

scholarly journals Effects of the Hedgehog signalling inhibitor itraconazole on developing rat ovaries

2021 ◽  
Author(s):  
Hanna Katarina Lilith Johansson ◽  
Camilla Taxvig ◽  
Gustav Peder Mohr Olsen ◽  
Terje Svingen
Keyword(s):  
Endocrine Disrupting Chemicals ◽  
Endocrine Disrupting Compounds ◽  
Perinatal Period ◽  
Endocrine Function ◽  
Ovary Development ◽  
Knock Out ◽  
Female Reproductive Health ◽  
Endocrine Disrupting ◽  
Hh Signaling ◽  
Knock Out Mice

Abstract Early ovary development is considered to be largely hormone independent, yet there are associations between fetal exposure to endocrine disrupting chemicals and reproductive disorders in women. This can potentially be explained by perturbations to establishment of ovarian endocrine function rather than interference with an already established hormone system. In this study we explore if Hedgehog (HH) signaling, a central pathway for correct ovary development, can be disrupted by exposure to HH-disrupting chemicals, using the antifungal itraconazole as model compound. In the mouse Leydig cell line TM3, used as a proxy for ovarian theca cells, itraconazole exposure had a suppressing effect on genes downstream of HH signaling, such as Gli1. Exposing explanted rat ovaries (gestational day 22 or postnatal day 3) to 30 µM itraconazole for 72 h induced significant suppression of genes in the HH signaling pathway with altered Ihh, Gli1, Ptch1, and Smo expression similar to those previously observed in Ihh/Dhh knock-out mice. Exposing rat dams to 50 mg/kg bw/day in the perinatal period did not induce observable changes in the offspring’s ovaries. Overall, our results suggest that HH signal disruptors may affect ovary development with potential long-term consequences for female reproductive health. However, potent HH inhibitors would likely cause severe teratogenic effects at doses lower than those causing ovarian dysgenesis, so the concern with respect to reproductive disorder is for the presence of HH disruptors at low concentration in combination with other ovary or endocrine disrupting compounds.

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