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Disinfection Byproducts in Chlorinated Drinking Water
International Journal of Water and Wastewater Treatment SciO p Forschene n HUB for Sc i e n t i f i c R e s e a r c h ISSN 2381-5299 | Open Access RESEARCH ARTICLE Volume 4 - Issue 2 | DOI: http://dx.doi.org/10.16966/2381-5299.156 Disinfection Byproducts in Chlorinated Drinking Water Malia Vester1, Hany F Sobhi2 and Mintesinot Jiru1* 1Department of Natural Sciences, Coppin State University, Maryland, USA 2Center for Organic Synthesis, Department of Natural Sciences, Coppin State University, Maryland, USA *Corresponding author: Mintesinot Jiru, Department of Natural Sciences, Coppin State University, Maryland, USA, Tel: 410-951-4139; E-mail: [email protected] Received: 07 Jul, 2018 | Accepted: 14 Nov, 2018 | Published: 20 Nov, 2018 Citation: Vester M, Sobhi HF, Jiru M (2018) Disinfection Byproducts in Chlorinated Drinking Water. Int J Water Wastewater Treat 4(2): dx.doi. org/10.16966/2381-5299.156 Copyright: © Vester M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Abstract Trihalomethanes (THMs) are disinfection byproducts formed through the reaction of chlorine and organic matter. There are four forms of Trihalomethanes: chloroform, bromoform, dibromochloromethane and bromodichloromethane. Studies have shown that chloroform, a principal disinfection byproduct, is carcinogenic in rodents. Although the presence of these hazardous materials are constantly being monitored by Water Treatment Plant and the Environmental Protection Agency (EPA), they continue to be present at an unpredictable levels and the full effects of these byproducts are not fully understood. -
Toxicological Profile for Bromodichloromethane
BROMODICHLOROMETHANE 89 CHAPTER 5. POTENTIAL FOR HUMAN EXPOSURE 5.1 OVERVIEW Bromodichloromethane has been identified in at least 238 of the 1,854 hazardous waste sites that have been proposed for inclusion on the EPA National Priorities List (NPL) (ATSDR 2017). However, the number of sites in which bromodichloromethane has been evaluated is not known. The number of sites in each state is shown in Figure 5-1. Of these sites, 233 are located within the United States, 2 are located in the Virgin Islands, and 3 are located in Puerto Rico (not shown). Figure 5-1. Number of NPL Sites with Bromodichloromethane Contamination • The most likely route of exposure for the general public to bromodichloromethane is through ingestion, inhalation, and dermal contact of chlorinated drinking water. • A median bromodichloromethane intake of 2.8–4.2 µg/day from drinking water has been estimated; inhalation and dermal exposure would add to this daily intake. BROMODICHLOROMETHANE 90 5. POTENTIAL FOR HUMAN EXPOSURE • Bromodichloromethane is formed as a byproduct of water disinfection methods using chlorination. This is the primary source of bromodichloromethane in the environment. • Its principal use is as a chemical intermediate for organic synthesis and as a chemical reagent. • Volatilization is an important fate process. Bromodichloromethane evaporates from sources and enters the environment as a gas, which is slowly broken down in air. Residual bromodichloromethane may be broken down slowly by bacteria. • In the atmosphere, bromodichloromethane is thought to undergo slow degradation through oxidative pathways, with a half-life of about 2–3 months. 5.2 PRODUCTION, IMPORT/EXPORT, USE, AND DISPOSAL 5.2.1 Production The principal anthropogenic source of bromodichloromethane is its unintentional formation as a byproduct during the chlorination of water containing organic materials and bromide. -
Status of Industry Efforts to Replace Halon Fire Extinguishing Agents
STATUS OF INDUSTRY EFFORTS TO REPLACE HALON FIRE EXTINGUISHING AGENTS Robert T. Wickham, P.E. March 16, 2002 WICKHAM ASSOCIATES NOTICE This document is disseminated under the sponsorship of the U.S. Environmental Protection Agency in the interest of information exchange. The views expressed in this report are those of the author and do not necessarily reflect those of the US Environmental Protection Agency. The US Environmental Protection Agency does not assume liability for the contents or use thereof and further the Agency does not endorse products or manufacturers. Trade or manufacturer's names appear herein solely because they are considered essential to the objective of this report. The following commercial products (requiring a trademark designation ® or ™) are mentioned in this report. Due to the frequency of usage, trademarks are not indicated. Mention of a product does not constitute endorsement or rejection of the product. Ansul FE-25 Argonite FE-36 Argotec FM-200 CEA-410 Halotron I CEA-614 Inergen CEA-308 NAF P-IV Envirogel NAF S-III FE-13 NN100 FE-227 Triodide FE-241 There are no restrictions on copying or distribution of this document. Additional copies of this report are available from ….. Wickham Associates 9 Winding Brook Drive Stratham, New Hampshire 03885 USA Tel: +603-772-3229 Fax: +603-772-7305 email: [email protected] The report is available at http://home.attbi.com/~wickham/downloads.htm for downloading in Adobe Acrobat portable document format (pdf). Preface This report is not intended to be a market study, but instead a snapshot of the progress industry and the government are making in employing non ozone depleting alternatives to halons in the fire protection sector. -
Liquefied Gas Conversion Chart
LIQUEFIED GAS CONVERSION CHART Cubic Feet / Pound Pounds / Gallon Product Name Column A Column B Acetylene UN/NA: 1001 14.70 4.90 CAS: 514-86-2 Air UN/NA: 1002 13.30 7.29 CAS: N/A Ammonia Anhydrous UN/NA: 1005 20.78 5.147 CAS: 7664-41-7 Argon UN/NA: 1006 9.71 11.63 CAS: 7440-37-1 Butane UN/NA: 1075 6.34 4.86 CAS: 106-97-8 Carbon Dioxide UN/NA: 2187 8.74 8.46 CAS: 124-38-9 Chlorine UN/NA: 1017 5.38 11.73 CAS: 7782-50-5 Ethane UN/NA: 1045 12.51 2.74 CAS: 74-84-0 Ethylene Oxide UN/NA: 1040 8.78 7.25 CAS: 75-21-8 Fluorine UN/NA: 1045 10.17 12.60 CAS: 7782-41-4 Helium UN/NA: 1046 97.09 1.043 CAS: 7440-59-7 Hydrogen UN/NA: 1049 192.00 0.592 CAS: 1333-74-0 1. Find the gas you want to convert. 2. If you know your quantity in cubic feet and want to convert to pounds, divide your amount by column A 3. If you know your quantity in gallons and want to convert to pounds, multiply your amount by column B 4. If you know your quantity in pounds and want to convert to gallons, divide your amount by column B If you have any questions, please call 1-800-433-2288 LIQUEFIED GAS CONVERSION CHART Cubic Feet / Pound Pounds / Gallon Product Name Column A Column B Hydrogen Chloride UN/NA: 1050 10.60 8.35 CAS: 7647-01-0 Krypton UN/NA: 1056 4.60 20.15 CAS: 7439-90-9 Methane UN/NA: 1971 23.61 3.55 CAS: 74-82-8 Methyl Bromide UN/NA: 1062 4.03 5.37 CAS: 74-83-9 Neon UN/NA: 1065 19.18 10.07 CAS: 7440-01-9 Mapp Gas UN/NA: 1060 9.20 4.80 CAS: N/A Nitrogen UN/NA: 1066 13.89 6.75 CAS: 7727-37-9 Nitrous Oxide UN/NA: 1070 8.73 6.45 CAS: 10024-97-2 Oxygen UN/NA: 1072 12.05 9.52 CAS: 7782-44-7 Propane UN/NA: 1075 8.45 4.22 CAS: 74-98-6 Sulfur Dioxide UN/NA: 1079 5.94 12.0 CAS: 7446-09-5 Xenon UN/NA: 2036 2.93 25.51 CAS: 7440-63-3 1. -
Evaluating Analytical Methods for Detecting Unknown Chemicals in Recycled Water
PROJECT NO. 4992 Evaluating Analytical Methods for Detecting Unknown Chemicals in Recycled Water Evaluating Analytical Methods for Detecting Unknown Chemicals in Recycled Water Prepared by: Keith A. Maruya Charles S. Wong Southern California Coastal Water Research Project Authority 2020 The Water Research Foundation (WRF) is a nonprofit (501c3) organization which provides a unified source for One Water research and a strong presence in relationships with partner organizations, government and regulatory agencies, and Congress. The foundation conducts research in all areas of drinking water, wastewater, stormwater, and water reuse. The Water Research Foundation’s research portfolio is valued at over $700 million. The Foundation plays an important role in the translation and dissemination of applied research, technology demonstration, and education, through creation of research‐based educational tools and technology exchange opportunities. WRF serves as a leader and model for collaboration across the water industry and its materials are used to inform policymakers and the public on the science, economic value, and environmental benefits of using and recovering resources found in water, as well as the feasibility of implementing new technologies. For more information, contact: The Water Research Foundation Alexandria, VA Office Denver, CO Office 1199 North Fairfax Street, Suite 900 6666 West Quincy Avenue Alexandria, VA 22314‐1445 Denver, Colorado 80235‐3098 Tel: 571.384.2100 Tel: 303.347.6100 www.waterrf.org [email protected] ©Copyright 2020 by The Water Research Foundation. All rights reserved. Permission to copy must be obtained from The Water Research Foundation. WRF ISBN: 978‐1‐60573‐503‐0 WRF Project Number: 4992 This report was prepared by the organization(s) named below as an account of work sponsored by The Water Research Foundation. -
Ozone Depleting Substances
Ozone Depleting Substances What are they? Ozone depleting substances are chemicals that destroy the earth’s protective ozone layer. They include: • chlorofluorocarbons (CFCs) • halons • carbon tetrachloride (CCl4) • methyl chloroform (CH3CCl3) • hydrobromofluorocarbons (HBFCs) • hydrochlorofluorocarbons (HCFCs) • methyl bromide (CH3Br) • bromochloromethane (CH2BrCl) The use of these chemicals is controlled by the Montreal Protocol on Substances that Deplete the Ozone Layer (the Montreal Protocol). There are other ozone depleting substances, but their ozone depleting effects are very small, so they are not controlled by the Montreal Protocol. One kilogram of halon 1211 can destroy 50 tonnes of ozone What is ozone depleting potential? Ozone depleting potential is a measure of how much damage a chemical can cause to the ozone layer compared with a similar mass What did we use ozone depleting of trichlorofluoromethane (CFC-11). CFC-11, with an ozone depleting potential of 1.0, is substances for? used as the base figure for measuring ozone depletion potential. The higher the number, The main uses of ozone depleting substances the more damage a chemical can cause to include; CFCs and HCFCs in refrigerators and the ozone layer. Bromotrifluoromethane air conditioners, HCFCs and halons in fire (halon -1301) has an ozone depleting potential extinguishers, CFCs and HCFCs in foam, CFCs of 10.0. Carbon dioxide (CO2) is a naturally and HCFCs as aerosol propellants and methyl occurring greenhouse gas, but has an ozone bromide for fumigation of soil, structures and depleting potential of 0. goods to be imported or exported. Have we stopped using ozone Why do we still use some ozone depleting substances? depleting substances? Production of most ozone depleting Some substances with a high ozone depleting substances has been phased out under the potential are still used in quarantine and Montreal Protocol. -
Table 1 : List of the Declarable Substances (1) Prohibited
DQ2000001-03 Table 1 : List of the Declarable Substances (13th Edition) (1) Prohibited Substances *Intentional addition is prohibited, excluding exempt items Substance Category/ No. Scope and Threshold Level Key Regulations Examples of Use Name - Substances prohibited to manufacture under the Industrial Safety and Health Brake friction material, 1 Asbestos Prohibited Act (Japan) filler, adiabatic material - REACH Regulation (EC) No 1907/2006 Detailed Chemical List CAS No. Asbestos 1332-21-4 Actinolite 77536-66-4 Amosite 12172-73-5 Anthophyllite 77536-67-5 Chrysotile 12001-29-5 Crocidolite 12001-28-4 Tremolite 77536-68-6 Substance Category/ No. Scope and Threshold Level Key Regulations Examples of Use Name Content exceeding 100 Cadmium/cadmium ppm in homogeneous - EU RoHS Directive 2011/65/EC 2 compounds material, excluding exempt - China RoHS items Content exceeding 20 ppm EU Battery Directive 2006/66/EC, in batteries including 2013/56/EU storage batteries Pigment, electronic materials, plating, Homogenous packaging fluorescent bulb, materials containing electrode,batteries cadmium with gross concentration of cadmium, EU Directive 94/62/EC mercury, hexavalent chromium, and lead exceeding 100 ppm and that contain cadmium [Exemption] The exemptions listed in the EU Directive 2011/65/EC. Detailed Chemical List CAS No. Cadmium 7440-43-9 Cadmium oxide 1306-19-0 Cadmium sulfide 1306-23-6 Cadmium chloride 10108-64-2 Cadmium sulfate 10124-36-4 Substance Category/ No. Scope and Threshold Level Key Regulations Examples of Use Name Content exceeding 1000 Chromium VI ppm in homogeneous - EU RoHS Directive 2011/65/EC 3 compounds material, excluding exempt - China RoHS items Homogenous packaging Pigment, catalyst, material containing plating, dye, surface hexavalent chromium with treatment gross concentration of EU Directive 94/62/EC cadmium, mercury, hexavalent chromium, and lead exceeding 100 ppm [Exemption] The exemptions listed in the EU Directive 2011/65/EC. -
Halons Technical Options Committee 2018 AssessMent Report
Halons Technical Options Committee 2018 Assess ment Report Volume 1 Montreal Protocol on Substances that Deplete the Ozone Layer Ozone Secretariat MONTREAL PROTOCOL ON SUBSTANCES THAT DEPLETE THE OZONE LAYER REPORT OF THE HALONS TECHNICAL OPTIONS COMMITTEE DECEMBER 2018 VOLUME 1 2018 ASSESSMENT REPORT i Montreal Protocol on Substances that Deplete the Ozone Layer Report of the Halons Technical Options Committee December 2018 Volume 1 2018 ASSESSMENT REPORT The text of this report is composed in Times New Roman Co-ordination: Halons Technical Options Committee Composition of the report: Halons Technical Options Committee Reproduction: Ozone Secretariat Date: December 2018 Under certain conditions, printed copies of this report are available from: UNITED NATIONS ENVIRONMENT PROGRAMME Ozone Secretariat, P.O. Box 30552, Nairobi, Kenya This document is also available in portable document format from the Ozone Secretariat's website: https://ozone.unep.org/sites/default/files/Assessment_Panel/Assessment_Panels/TEAP/R eports/HTOC/HTOC_assessment_2018.pdf No copyright involved. This publication may be freely copied, abstracted and cited, with acknowledgement of the source of the material. ISBN: 978-9966-076-48-9 iii Disclaimer The United Nations Environment Programme (UNEP), the Technology and Economic Assessment Panel (TEAP) Co-chairs and members, the Technical Options Committees Co-chairs and members, the TEAP Task Forces Co-chairs and members, and the companies and organisations that employ them do not endorse the performance, worker safety, or environmental acceptability of any of the technical options discussed. Every industrial operation requires consideration of worker safety and proper disposal of contaminants and waste products. Moreover, as work continues - including additional toxicity evaluation - more information on health, environmental and safety effects of alternatives and replacements will become available for use in selecting among the options discussed in this document. -
ACE Tips for Filing EPA ODS
Automated Commercial Environment ACE Tips for Filing EPA ODS June, 2018 Ozone-depleting substances (ODS) deplete the stratospheric ozone layer when the chlorine and bromine atoms that they contain come into contact with ozone molecules. One chlorine atom can destroy over 100,000 ozone molecules before it is removed from the stratosphere. ODS that release chlorine include chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), carbon tetrachloride, and methyl chloroform. ODS that release bromine include halons and methyl bromide. HTS code Ozone-Depleting Substance 2903.14.0000 Carbon tetrachloride What commodities 2903.19.6010 Methylchloroform (1,1,1-Trichloroethane) are ODS used in? 2903.39.1520 Methyl bromide 2903.71.0000 Chlorodifluoromethane (HCFC-22) ODS have been used 2903.72.0020 Dichlorotrifluoroethane (HCFC-123) for refrigeration, air 2903.73.0000 Dichlorofluoroethanes (HCFC-141, 141b) conditioning, insulation, 2903.74.0000 Chlorodifluoroethanes (HCFC-142, 142b) solvents, aerosol 2903.75.0000 Dichloropentafluoropropanes propellants, and in other (HCFC-225, 225ca, 225cb) sectors. Currently, the United 2903.76.0010 Bromotrifluoromethane (Halon 1301) States is in the 2903.76.0050 Bromochlorodifluoromethane (Halon 1211), process of phasing bromotrifluoromethane (Halon 1301), and out HCFCs, but in the dibromotetrafluoroethanes (Halon 2402), Other interim limited imports are 2903.77.0010 Trichlorofluoromethane (CFC-11) allowed. CFCs, 2903.77.0020 Trichlorotrifluoroethanes (CFC-113, CFC-113a) methyl bromide, halon, 2903.77.0030 -
Trihalomethanes in Drinking-Water
WHO/SDE/WSH/05.08/64 English only Trihalomethanes in Drinking-water Background document for development of WHO Guidelines for Drinking-water Quality WHO information products on water, sanitation, hygiene and health can be freely downloaded at: http://www.who.int/water_sanitation_health/ © World Health Organization 2005 This document may be freely reviewed, abstracted, reproduced and translated in part or in whole but not for sale or for use in conjunction with commercial purposes. Inquiries should be addressed to: [email protected]. The designations employed and the presentation of the material in this document do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. The mention of specific companies or of certain manufacturers’ products does not imply that they are endorsed or recommended by the World Health Organization in preference to others of a similar nature that are not mentioned. Errors and omissions excepted, the names of proprietary products are distinguished by initial capital letters. The World Health Organization does not warrant that the information contained in this publication is complete and correct and shall not be liable for any damages incurred as a result of its use. Preface One of the primary goals of WHO and its member states is that “all people, whatever their stage of development and their social and economic conditions, have the right to have access to an adequate supply of safe drinking water.” A major WHO function to achieve such goals is the responsibility “to propose .. -
List of Lists
United States Office of Solid Waste EPA 550-B-10-001 Environmental Protection and Emergency Response May 2010 Agency www.epa.gov/emergencies LIST OF LISTS Consolidated List of Chemicals Subject to the Emergency Planning and Community Right- To-Know Act (EPCRA), Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) and Section 112(r) of the Clean Air Act • EPCRA Section 302 Extremely Hazardous Substances • CERCLA Hazardous Substances • EPCRA Section 313 Toxic Chemicals • CAA 112(r) Regulated Chemicals For Accidental Release Prevention Office of Emergency Management This page intentionally left blank. TABLE OF CONTENTS Page Introduction................................................................................................................................................ i List of Lists – Conslidated List of Chemicals (by CAS #) Subject to the Emergency Planning and Community Right-to-Know Act (EPCRA), Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) and Section 112(r) of the Clean Air Act ................................................. 1 Appendix A: Alphabetical Listing of Consolidated List ..................................................................... A-1 Appendix B: Radionuclides Listed Under CERCLA .......................................................................... B-1 Appendix C: RCRA Waste Streams and Unlisted Hazardous Wastes................................................ C-1 This page intentionally left blank. LIST OF LISTS Consolidated List of Chemicals -
Maine Remedial Action Guidelines (Rags) for Contaminated Sites
Maine Department of Environmental Protection Remedial Action Guidelines for Contaminated Sites (RAGs) Effective Date: May 1, 2021 Approved by: ___________________________ Date: April 27, 2021 David Burns, Director Bureau of Remediation & Waste Management Executive Summary MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION 17 State House Station | Augusta, Maine 04333-0017 www.maine.gov/dep Maine Department of Environmental Protection Remedial Action Guidelines for Contaminated Sites Contents 1 Disclaimer ...................................................................................................................... 1 2 Introduction and Purpose ............................................................................................... 1 2.1 Purpose ......................................................................................................................................... 1 2.2 Consistency with Superfund Risk Assessment .............................................................................. 1 2.3 When to Use RAGs and When to Develop a Site-Specific Risk Assessment ................................. 1 3 Applicability ................................................................................................................... 2 3.1 Applicable Programs & DEP Approval Process ............................................................................. 2 3.1.1 Uncontrolled Hazardous Substance Sites ............................................................................. 2 3.1.2 Voluntary Response Action Program