نتایج جستجو برای: dbps

تعداد نتایج: 390  

Journal: :Environmental toxicology and chemistry 2002
Silvano Monarca Susan D Richardson Donatella Feretti Mario Grottolo Alfred D Thruston Claudia Zani Giancarlo Navazio Patrizia Ragazzo Ilaria Zerbini Adriana Alberti

The aims of this research were to study the influence of peracetic acid (PAA) on the formation of mutagens in surface waters used for human consumption and to assess its potential application for the disinfection of drinking water. The results obtained using PAA were compared to those found with sodium hypochlorite (NaClO) and chlorine dioxide (ClO2). The Ames test, root anaphase aberration ass...

Journal: :Chemosphere 2010
Kheng Soo Tay Noorsaadah Abd Rahman Mhd Radzi Bin Abas

This study investigated the reaction kinetics and degradation mechanism of parabens (methylparaben, ethylparaben, propylparaben and butylparaben) during ozonation. Experiments were performed at pH 2, 6 and 12 to determine the rate constants for the reaction of protonated, undissociated and dissociated paraben with ozone. The rate constants for the reaction of ozone with dissociated parabens (3....

2013
Afshin Takdastan Azadeh Eslami

Introduction: The removal of organic precursors of disinfection byproducts (DBPs), i.e. natural organic matter (NOM), prior to disinfection is considered as the most effective approach to minimise the formation of DBPs. Trihalomethanes (THMs) as the main group of DBPs are categorized and considered to have the potentiality of increasing the rate of liver, kidney and CNS adverse effects. Methods...

Journal: :Environmental Health Perspectives 1999
C P Weisel H Kim P Haltmeier J B Klotz

Exposure to disinfection by-products (DBPs) of drinking water is multiroute and occurs in households serviced by municipal water treatment facilities that disinfect the water as a necessary step to halt the spread of waterborne infectious diseases. Biomarkers of the two most abundant groups of DBPs of chlorination, exhaled breath levels of trihalomethanes (THMs) and urinary levels of two haloac...

2018
Karin van Veldhoven Pekka Keski-Rahkonen Dinesh K. Barupal Cristina M. Villanueva Laia Font-Ribera Augustin Scalbert Barbara Bodinier Joan O. Grimalt Christian Zwiener Jelle Vlaanderen Lützen Portengen Roel Vermeulen Paolo Vineis Marc Chadeau-Hyam Manolis Kogevinas

BACKGROUND Exposure to disinfection by-products (DBPs) in drinking water and chlorinated swimming pools are associated with adverse health outcomes, but biological mechanisms remain poorly understood. OBJECTIVES Evaluate short-term changes in metabolic profiles in response to DBP exposure while swimming in a chlorinated pool. MATERIALS AND METHODS The PISCINA-II study (EXPOsOMICS project) i...

2017
R. Haas E. Alenciks S. Meddle G. S. Fraley

Several putative deep brain photoreceptors (DBPs) have been identified, such as melanopsin, opsin 5, and vertebrate ancient opsin. The aim of this study was to elucidate the role of DBPs in gonadal regulation in the Pekin drake. As previously reported, we observed opsin-like immunoreactivity (-ir) in the lateral septum (LS), melanopsin-ir in the premammillary nucleus (PMM), and opsin 5-ir in th...

Journal: :Journal of Cleaner Production 2022

With respect to sustainable product management, the transition circular battery value chains requires that stakeholders have access high-quality data for decision-making purposes. In such a context, digital passports (DBPs) can act as valuable source and thus enable greater sustainability circularity. The present paper presents DBP concept an electric vehicle (EVB), delineates, first time, resp...

Journal: :Journal of Biological Research - Bollettino della Società Italiana di Biologia Sperimentale 2013

Journal: :Water 2022

Biological activated carbon (BAC) filtration is an effective technology for the removal of natural organic matter. However, one potential drawback BAC, especially old that effluents can contain soluble microbial products released from biofilm, which are recognized as more toxic nitrogenous DBPs (N-DBPs) precursors. So far, limited studies reported risk DBP formation potentials (FPs) increase ca...

2013
Xiao Wei Xin Chen Xia Wang Weiwei Zheng Dong Zhang Dajun Tian Songhui Jiang Choon Nam Ong Gengsheng He Weidong Qu

Drinking water chlorination plays a pivotal role in preventing pathogen contamination against water-borne disease. However, chemical disinfection leads to the formation of halogenated disinfection by products (DBPs). Many DBPs are highly toxic and are of health concern. In this study, we conducted a comprehensive measurements of DBPs, including iodoacetic acid (IAA), iodoform (IF), nine haloace...

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