Persistent Organic Pollutants (POPs): Monitoring, Impact and Treatment [Working Title]最新文献

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Role and Effect of Persistent Organic Pollutants to Our Environment and Wildlife 持久性有机污染物对环境和野生动物的作用和影响

Persistent Organic Pollutants (POPs): Monitoring, Impact and Treatment [Working Title] Pub Date : 2022-01-20 DOI: 10.5772/intechopen.101617

Nisha Gaur, Dhiraj Dutta, Aman Jaiswal, Rama Dubey, Dev Vrat Kamboj

引用次数: 1

Impact of PCBs, Furan and Dioxin on Hepatocarcinogenesis 多氯联苯、呋喃和二恶英对肝癌发生的影响

Persistent Organic Pollutants (POPs): Monitoring, Impact and Treatment [Working Title] Pub Date : 2022-01-13 DOI: 10.5772/intechopen.101526

M. Helal, S. Ghanem, A. El-Sikaily

{"title":"Impact of PCBs, Furan and Dioxin on Hepatocarcinogenesis","authors":"M. Helal, S. Ghanem, A. El-Sikaily","doi":"10.5772/intechopen.101526","DOIUrl":"https://doi.org/10.5772/intechopen.101526","url":null,"abstract":"Stockholm Convention defined polychlorinated biphenyls (PCBs) as a group of persistent organic pollutants (POPs) such as dioxin/furan, dichlorodiphenyltrichloroethane, polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins, aldrin, polychlorinated dibenzofurans and organometallic compounds (such as organotin and organomercury) which share the same characteristics of being persistent, bioaccumulative and toxic and can travel long distance through various media. They have diverse health impacts with different underlined molecular mechanisms. Recently, PCBs were referred as potent carcinogens with persistent existence in the environment. As the liver is the organ of detoxification, it is the major target organ for toxic effects induced by environmental contaminants, including PCBs. PCBs, furan and dioxin exert their hepatocarcinogenic effect through different mechanisms such as induction of oxidative stress, an increase of reactive oxygen species (ROS), mutagenic induction to oncogenes and epigenetic alteration to hepatic cells. In this chapter, we will provide an updated overview about PCBs, furan and dioxins, their impact on liver cancer initiation and progression on various in vivo and in vitro systems and its underlined molecular mechanisms. Also, a special emphasis will be directed to highlight zebrafish as in vivo model system to analyse the hepatocarcinogenic effect of these pollutants.","PeriodicalId":413700,"journal":{"name":"Persistent Organic Pollutants (POPs): Monitoring, Impact and Treatment [Working Title]","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115329451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Physiochemical Properties and Removal Methods of Phenolic Compounds from Waste Waters 废水中酚类化合物的理化性质及去除方法

Persistent Organic Pollutants (POPs): Monitoring, Impact and Treatment [Working Title] Pub Date : 2022-01-07 DOI: 10.5772/intechopen.101545

Y. Gucbilmez

{"title":"Physiochemical Properties and Removal Methods of Phenolic Compounds from Waste Waters","authors":"Y. Gucbilmez","doi":"10.5772/intechopen.101545","DOIUrl":"https://doi.org/10.5772/intechopen.101545","url":null,"abstract":"In this chapter, phenol and chlorophenols are investigated in terms of their production histories, physiochemical properties, pollution resources, and removal methods. It is seen that both phenol and chlorophenols are highly toxic compounds, produced from natural and anthropogenic sources, which are hazardous to both humans and the environment even at very low concentrations. The typical industries which produce phenol and chlorophenol pollution are petrochemical, textile, plastics, resin, dye, pharmaceutical, iron and steel, pulp and paper industries as well as the petroleum refineries, and coal gasification operations. Phenol is a highly corrosive and nerve poisoning agent. It causes harmful health effects, such as sour mouth, diarrhea, and impaired vision. It is also toxic for the ecosystem with toxicity levels ranging between 10-24 mg/L for humans, 9-25 mg/l for fish, and lethal blood concentration around 150-mg/100 ml. Chlorophenols found in natural waters or drinking water also cause serious health problems such as histopathological alterations, genotoxicity, mutagenicity, and carcinogenicity among others. Due to the aforementioned reasons, the phenolic compounds in wastewaters or drinking water must be removed using a suitable wastewater treatment method such as adsorption, extraction, electrochemical oxidation, biodegradation, catalytic wet air oxidation, or enzyme treatment among others.","PeriodicalId":413700,"journal":{"name":"Persistent Organic Pollutants (POPs): Monitoring, Impact and Treatment [Working Title]","volume":"237 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122047034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2