scholarly journals Performance of ozone and peroxone on the removal of endocrine disrupting chemicals (EDCs) coupled with cost analysis

2020 ◽  
Vol 82 (4) ◽  
pp. 640-650
Author(s):  
T. Olmez-Hanci ◽  
S. Dogruel ◽  
A. D. Allar Emek ◽  
C. Eropak Yılmazer ◽  
S. Çınar ◽  
...  
Keyword(s):  
Endocrine Disruptors ◽  
Textile Industry ◽  
Lower Cost ◽  
Wastewater Treatment Plants ◽  
Endocrine Disrupting Chemicals ◽  
Additional Treatment ◽  
Wwtp Effluent ◽  
Endocrine Disrupting ◽  
Removal Efficiencies ◽  
Oxidation Efficiency

Abstract Micropollutants such as endocrine disruptors are one of the most important groups of chemicals polluting water resources. Conventional treatment systems may not be effective for the removal of endocrine disrupting chemicals (EDCs), and the fate of these chemicals should be carefully monitored in the effluent of wastewater treatment plants (WWTPs). Additional treatment methods such as advanced oxidation processes can be used for the removal of endocrine disruptors. This study presents the existence of endocrine disruptors in 4 different effluents: (i) municipal WWTP effluent, (ii) textile industry WWTP effluent, (iii) organized industrial zone (OIZ) WWTP effluent and (iv) pharmaceutical industry discharge and also presents their removal efficiencies by ozonation and peroxone oxidation. A broad spectrum of removal efficiencies was observed for the EDCs present in the samples since the oxidation efficiency of wastewaters containing EDCs mainly depends on the wastewater matrix and on the type of the EDCs. Ozonation was found to be a lower-cost option than peroxone oxidation at the investigated conditions.

Effect of wastewater chlorination on endocrine disruptor removal

2013 ◽  
Vol 67 (7) ◽  
pp. 1551-1556 ◽  
Author(s):  
C. Noutsopoulos ◽  
D. Mamais ◽  
V. Samaras ◽  
T. Bouras ◽  
M. Marneri ◽  
...  
Keyword(s):  
Wastewater Treatment Plants ◽  
Endocrine Disrupting Chemicals ◽  
Wastewater Reuse ◽  
Endocrine System ◽  
Secondary Effluent ◽  
Batch Tests ◽  
Toxic Metabolites ◽  
Endocrine Disrupting ◽  
Water Courses ◽  
Removal Efficiencies

Endocrine disrupting chemicals (EDCs) are compounds of mainly anthropogenic origin that interfere with the endocrine system of animals and humans thus causing a series of disorders. Wastewater treatment plants are one of the major routes for transporting such chemicals to the water courses. In the context of this study, several chlorination batch tests were performed in order to assess the effectiveness of chlorination to remove bisphenol A (BPA), triclosan (TCS), nonylphenol (NP) and its ethoxylates (NP1EO and NP2EO) from secondary effluent. According to the results, an appreciable removal of NP, BPA and TCS to the order of 60–84% was observed as an effect of moderate chlorination doses. This was not the case for NP1EO and NP2EO as even at high chlorine doses, removal efficiencies were lower (37% for NP1EO and 52% for NP2EO). Removal efficiencies of NP, BPA and TCS are practically independent of contact time, although this was not the case for NP1EO and NP2EO. Based on toxicity experiments, it is anticipated that following chlorination of the target chemicals, production of more toxic metabolites is taking place. Therefore the effectiveness of chlorination to remove EDCs is questionable and more research is needed to guarantee safe wastewater reuse.

scholarly journals Epigenetic modifications associated with in utero exposure to endocrine disrupting chemicals BPA, DDT and Pb

2019 ◽  
Vol 34 (4) ◽  
pp. 309-325 ◽  
Author(s):  
Chinonye Doris Onuzulu ◽  
Oluwakemi Anuoluwapo Rotimi ◽  
Solomon Oladapo Rotimi
Keyword(s):  
Endocrine Disruptors ◽  
Endocrine Disrupting Chemicals ◽  
Endocrine System ◽  
Environmental Chemicals ◽  
Epigenetic Mechanisms ◽  
Epigenetic Alterations ◽  
Endocrine Disrupting ◽  
Non Coding Rnas ◽  
Hormone System ◽  
Developmental Windows

Abstract Endocrine disrupting chemicals (EDCs) are xenobiotics which adversely modify the hormone system. The endocrine system is most vulnerable to assaults by endocrine disruptors during the prenatal and early development window, and effects may persist into adulthood and across generations. The prenatal stage is a period of vulnerability to environmental chemicals because the epigenome is usually reprogrammed during this period. Bisphenol A (BPA), lead (Pb), and dichlorodiphenyltrichloroethane (DDT) were chosen for critical review because they have become serious public health concerns globally, especially in Africa where they are widely used without any regulation. In this review, we introduce EDCs and describe the various modes of action of EDCs and the importance of the prenatal and developmental windows to EDC exposure. We give a brief overview of epigenetics and describe the various epigenetic mechanisms: DNA methylation, histone modifications and non-coding RNAs, and how each of them affects gene expression. We then summarize findings from previous studies on the effects of prenatal exposure to the endocrine disruptors BPA, Pb and DDT on each of the previously described epigenetic mechanisms. We also discuss how the epigenetic alterations caused by these EDCs may be related to disease processes.

scholarly journals Effects of endocrine disruptors in the development of the female reproductive tract

2014 ◽  
Vol 58 (2) ◽  
pp. 153-161 ◽  
Author(s):  
Elaine Maria Frade Costa ◽  
Poli Mara Spritzer ◽  
Alexandre Hohl ◽  
Tânia A. S. S. Bachega
Keyword(s):  
Endocrine Disruptors ◽  
Hormone Receptors ◽  
Reproductive Tract ◽  
Polycystic Ovary ◽  
Endocrine Disrupting Chemicals ◽  
Public Health Problem ◽  
Female Reproductive Tract ◽  
Major Public Health Problem ◽  
Endocrine Disrupting ◽  
Environmental Agencies

Environmental agencies have identified a growing number of environmental contaminants that have endocrine disrupting activity, and these can become a major public health problem. It is suggested that endocrine disruptors could account for the higher-than-expected increase in the prevalence of some non-communicable diseases, such as obesity, diabetes, thyroid diseases, and some cancers. Several endocrine Disrupting Chemicals (EDCs), such as pesticides, bisphenol A, phthalates, dioxins, and phytoestrogens, can interact with the female reproductive system and lead to endocrine disruption. Initially, it was assumed that EDCs exert their effects by binding to hormone receptors and transcription factors, but it is currently known that they may also alter the expression of enzymes involved in the synthesis or catabolism of steroids. Biomonitoring studies have identified these compounds in adults, children, pregnant women, and fetuses. Among the diseases of the female reproductive tract associated with EDCs exposure are the following: precocious puberty, polycystic ovary syndrome, and premature ovarian failure. The different populations of the world are exposed to a great number of chemicals through different routes of infection; despite the various available studies, there is still much doubt regarding the additive effect of a mixture of EDCs with similar mechanisms of action.

scholarly journals Disruptores endocrinos y su camino hacia el desequilibrio metabólico

2020 ◽  
Vol 7 (1) ◽  
pp. 38-42
Author(s):  
P. Sánchez ◽  
M. Zanabria ◽  
S. Latorre ◽  
J. Calvache ◽  
A. Coy ◽  
...  
Keyword(s):  
Endocrine Disruptors ◽  
Endocrine Disruptor ◽  
Endocrine Disrupting Chemicals ◽  
Endocrine Effects ◽  
Endocrine Effect ◽  
Endocrine Disrupting

El presente artículo de revisión tiene como objetivo presentar, de forma resumida, la evidencia que existe sobre las repercusiones metabólicas a nivel de obesidad y diabetes, que se genera como consecuencia de la exposición a sustancias químicas exógenas, denominadas disruptores endocrinos (DE), a las cuales nos exponemos de forma cotidiana y que afectan nuestra salud y la de nuestra descendencia. Adicionalmente, con la presente revisión hacemos un llamado no solo a la comunidad médica, sino a los sectores involucrados en la producción, distribución y reglamentación del uso de estas sustancias, pues cada vez hay más evidencia de los efectos nocivos que pueden generar y debemos evitar su uso. Los datos se obtuvieron de estudios clínicos aleatorizados y de una revisión en idioma español e inglés de los últimos 15 años, que incluyó los términos DeCS: disruptores endocrinos, con alternativa DeCS: sustancias disruptoras endocrinas y efecto disruptor endocrino, así como términos MeSH: endocrine disruptors y alternativas MeSH: disruptors, endocrine; endocrine disrupting chemicals; chemicals, endocrine disrupting; endocrine disruptor effect; disruptor effect, endocrine; effect, endocrine disruptor; endocrine disruptor effects; disruptor effects, endocrine; effects, endocrine disruptor.

Removal of endocrine-disrupting chemicals from textile industry effluents by nanofiltration

2021 ◽  
Vol 211 ◽  
pp. 411-421
Author(s):  
A.D. Allar Emek ◽  
C. Eropak Yılmazer ◽  
S. Çınar ◽  
O. Kiraz ◽  
M.E. Paşaoğlu ◽  
...  
Keyword(s):  
Textile Industry ◽  
Endocrine Disrupting Chemicals ◽  
Endocrine Disrupting

scholarly journals Endocrine disrupting chemicals: harmful substances and how to test them

2002 ◽  
Vol 18 (2) ◽  
pp. 489-494 ◽  
Author(s):  
Nicolás Olea-Serrano ◽  
Mariana F. Fernández-Cabrera ◽  
Rosa Pulgar-Encinas ◽  
Fátima Olea-Serrano
Keyword(s):  
Endocrine Disruptors ◽  
Endocrine Disruption ◽  
Endocrine Disrupting Chemicals ◽  
Chemical Substances ◽  
Dose Time ◽  
Governmental Organizations ◽  
Non Governmental Organizations ◽  
Endocrine Disrupting ◽  
Regulatory Bodies ◽  
Estimation Of Risk

This paper presents an analysis of the opinions of different groups from: scientists, international regulatory bodies, non-governmental organizations and industry; with an interest in the problem of identifying chemical substances with endocrine disrupting activity. There is also discussion of the consequences that exposure to endocrine disruptors may have for human health, considering concrete issues related to: the estimation of risk; the tests that must be used to detect endocrine disruption; the difficulties to establish an association between dose, time of exposure, individual susceptibility, and effect; and the attempts to create a census of endocrine disruptors. Finally, it is proposed that not all hormonal mimics should be included under the single generic denomination of endocrine disruptors.

Endocrine disruptors and polycystic ovary syndrome: a focus on Bisphenol A and its potential pathophysiological aspects

2014 ◽  
Vol 17 (3) ◽  
Author(s):  
Eleni Palioura ◽  
Eleni Kandaraki ◽  
Evanthia Diamanti-Kandarakis
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Bisphenol A ◽  
Endocrine Disruptors ◽  
Polycystic Ovary ◽  
Endocrine Disrupting Chemicals ◽  
Unknown Etiology ◽  
Ovary Syndrome ◽  
Endocrine Disrupting ◽  
Underlying Causes ◽  
The Many

AbstractPolycystic ovary syndrome (PCOS) is a heterogeneous disorder of unknown etiology that may arise from a combination of a number of underlying genetic interactions and predispositions with environmental factors. Endocrine disruptors and, in particular, Bisphenol A may represent one of the many underlying causes of the syndrome as they are experimentally linked to metabolic and reproductive derangements resembling PCOS-related disorders. Exposure to endocrine-disrupting chemicals may act as an environmental modifier to worsen symptoms of PCOS in affected females or to contribute to the final phenotype of the syndrome in genetically predisposed individuals.

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