DOCSLIB.ORG

Summary of External Peer Review and Public Comments and Disposition for Cyclic Aliphatic Bromide Cluster (HBCD)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Summary of External Peer Review and Public Comments and Disposition for Cyclic Aliphatic Bromide Cluster (HBCD) Office of Chemical Safety and United States Pollution Prevention Environmental Protection Agency September 2020 Summary of External Peer Review and Public Comments and Disposition for Cyclic Aliphatic Bromide Cluster (HBCD) Response to Support Risk Evaluation of Cyclic Aliphatic Bromide Cluster (HBCD) September 2020 Table of Contents ABBREVIATIONS ....................................................................................................................... 4 Content and Organization ............................................................................................................... 8 Systematic Review – Public and Peer Review Comments ........................................................... 16 Environmental Fate and Transport................................................................................................ 30 Environmental Release ................................................................................................................. 46 Occupational Exposure ................................................................................................................. 55 Environmental, General Population, and Consumer Exposure .................................................... 75 Environmental Hazard .................................................................................................................. 96 Human Health Hazard................................................................................................................. 108 Environmental Risk Characterization ......................................................................................... 125 Human Health Risk Characterization ......................................................................................... 135 General Risk Characterization .................................................................................................... 146 EPA published the Draft Risk Evaluation for Cyclic Aliphatic Bromide Cluster (HBCD) in June 2019 and accepted public comments until August 28, 2019. Materials on the draft risk evaluation are available in docket EPA-HQ-OPPT-2019-0237. EPA held a peer review meeting of EPA’s Science Advisory Committee on Chemicals (SACC) on the draft risk evaluation for this chemical’s condition of use on July 30-31, 2019. This document summarizes the public and external peer review comments that the EPA’s Office of Pollution Prevention and Toxics (OPPT) received for the risk evaluation of Cyclic Aliphatic Bromide Cluster (HBCD). It also provides EPA’s response to the comments received from the public and the peer review panel. EPA appreciates the valuable input provided by the public and peer review panel. The input resulted in numerous revisions to the risk evaluation document. Peer review charge questions1 are used to categorize the peer review and public comments into specific issues related to the five main themes. 1. Content, Organization and Clarity of the Document 2. Clarity in the Description of Literature Search, Literature Screening, and Data Evaluation 3. Environmental Exposure Assessment, Including Environmental Fate and Transport and Environmental Release Assessment 4. Hazard and Dose Response Assessment, Including Ecological, Occupational, General Population, and Consumer Receptors 5. Risk Characterization All peer review comments for the eight charge questions are presented first, organized by charge question. These are followed by the public comments. For each theme, general comments pertaining to all chemicals are presented first, and then additional comments pertaining to only one or several chemicals follow. 1 These are the questions that EPA submitted to the panel to guide the peer review process. Page 3 of 168 ABBREVIATIONS 7Q10 Lowest expected weekly flow over a ten-year period ADME Absorption, Distribution, Metabolism, and Excretion APF Assigned Protection Factors ATSDR Agency for Toxic Substances and Disease Registry BAF Bioaccumulation Factor BCF Bioconcentration Factor BMD Benchmark Dose Modeling BMDL Lower Confidence limit on the BMD BMR Benchmark Response CDR Chemical Data Reporting CHAD Consolidated Human Activity Database COC Concentration of Concern COU Condition of Use ECHA European Chemicals Agency ECOTOX ECOTOXicology knowledgebase E-FAST Exposure and Fate Assessment Screening Tool EPS Expanded Polystyrene ER Extra Risk ESD Emission Scenario Document EU European Union EURAR European Union Risk Assessment Report FR Federal Register GI tract Gastrointestinal tract g Gram HBCD/HBCDD Hexabromocyclododecane HERO Health and Environmental Research Online HIPS High Impact Polystyrene HPLC High Performance Liquid Chromatography HQ Headquarters hr Hour IECCU Indoor Environmental Concentrations in Buildings with Conditioned and Unconditioned Zones IIOAC Integrated Indoor-Outdoor Air Calculator KABAM KOW (based) Aquatic BioAccumulation Model kg Kilogram(s) Koa Octanol:Air Partition Coefficient L Liter(s) lb Pound LOAEL Lowest Observed Adverse Effect Level LOEC Lowest Observed Effect Concentration Log Koc Logarithmic Organic Carbon:Water Partition Coefficient Page 4 of 168 Log Kow Logarithmic Octanol:Water Partition Coefficient m3 Cubic Meter(s) MOA Mode of Action MOE Margin of Exposure MOEJ Ministry of Environment Government in Japan MSW Municipal Solid Waste MSWLF Municipal Solid Waste Landfills ND No Data NICNAS National Industrial Chemicals Notification and Assessment Scheme NIOSH National Institute for Occupational Safety and Health NOAEL No Observable Adverse Effect Level NOEC No Observed Effect Concentration OES Occupational Exposure Scenario ONU Occupational Non-User OPPT Office of Pollution Prevention and Toxics OSHA Occupational Safety and Health Administration PBDE Polybrominated Diphenyl Ether PBPK Physiologically Based Pharmacokinetic Model PDM Probabilistic Dilution Model PESS Potentially Exposed or Susceptible Subpopulations PNOR Particles Not Otherwise Regulated POD Point of Departure POPs Stockholm Convention on Persistent Organic Pollutants POTW Publicly Owned Treatment Works ppm Part(s) per Million RAR Risk Assessment Report RCRA Resource Conservation and Recovery Act REACH European Union’s Registration, Evaluation, Authorisation and Restriction of Chemicals SIPS Structural Insulated Panels SNUR Significant New Use Rule SOD Superoxide dismutase TGD Technical Guidance Document TRI Toxics Release Inventory TSCA Toxic Substances Control Act TSH Thyroid Stimulating Hormone TWA Time-Weighted Average UF Uncertainty Factor U.S. United States UNEP United Nations Environment Programme VVWM-PSC Variable Volume Water Model - Point Source Calculator WWT/WWTP Wastewater Treatment Plant XPS Extruded Polystyrene (i.e., Extruded Polystyrene foam) XPSA Extruded Polystyrene Association Page 5 of 168 List of Comments Comment # Docket File Submitter 24 EPA-HQ-OPPT-2019-0237-0024 Safer Chemicals Healthy Families 28 EPA-HQ-OPPT-2019-0237-0028 Environmental Protection Network 29 EPA-HQ-OPPT-2019-0237-0029 Earthjustice and Occupational Safety & Health Law Project LLC 30 EPA-HQ-OPPT-2019-0237-0030 Environmental Defense Fund 31 EPA-HQ-OPPT-2019-0237-0031 American Chemistry Council 33 EPA-HQ-OPPT-2019-0237-0033 Environmental Protection Network 41 EPA-HQ-OPPT-2019-0237-0041 State of Washington 43 EPA-HQ-OPPT-2019-0237-0043 MacRoy 44 EPA-HQ-OPPT-2019-0237-0044 Singla 45 EPA-HQ-OPPT-2019-0237-0045 Hartigan 47 EPA-HQ-OPPT-2019-0237-0047 Motor & Equipment Manufacturers Association 48 EPA-HQ-OPPT-2019-0237-0048 Environmental Protection Network 49 EPA-HQ-OPPT-2019-0237-0049 Alliance of Automobile Manufacturers 50 EPA-HQ-OPPT-2019-0237-0050 American Chemistry Council & NAFRA 51 EPA-HQ-OPPT-2019-0237-0051 American Chemistry Council 53 EPA-HQ-OPPT-2019-0237-0053 Alaska Community Action on Toxics 54 EPA-HQ-OPPT-2019-0237-0054 National Tribal Toxics Council 55 EPA-HQ-OPPT-2019-0237-0055 Occupational Safety & Health Law Project 56 EPA-HQ-OPPT-2019-0237-0056 Environmental Defense Fund 57 EPA-HQ-OPPT-2019-0237-0057 Safer Chemicals Healthy Families 58 EPA-HQ-OPPT-2019-0237-0058 Extruded Polystyrene Foam Association 59 EPA-HQ-OPPT-2019-0237-0059 UCSF 61 EPA-HQ-OPPT-2019-0237-0061 Environmental Risk Reduction and Project TENDR 62 EPA-HQ-OPPT-2019-0237-0062 Earthjustice 63 EPA-HQ-OPPT-2019-0237-0063 Toxics Use Reduction Institute Page 7 of 168 Content and Organization – Public and Peer Review Comments Charge Question 1.1: Please comment on the overall content, organization, and presentation of the draft risk evaluation for HBCD. Charge Question 1.2: Please provide suggestions for improving the clarity of the information presented in the documents. # Summary of Peer Review Comments for Specific Issues EPA/OPPT Response Related to Charge Question 1 Inconsistencies/errors SACC SACC COMMENTS: EPA stated in the draft risk evaluation that • A committee member expressed some concern that there are discrepancies “reuse, disposal, and recycling of HBCD- regarding exposure assessments of polystyrene (PS) insulation exposure, containing products from legacy uses are not particularly on page 39 where text indicates reuse and/or disposal will not be within the conditions of use of the draft risk evaluated. (p. 91) evaluation.” This statement applied to use and disposal of articles such as electronics devices for which HBCD manufacture, processing, and distribution for such use had ceased, but not to use and disposal of polystyrene insulation. EPA evaluated exposure from use of EPS and XPS containing HBCD; recycling of EPS and reuse of XPS; and disposal of EPS and XPS in
Load more

Recommended publications
  • Chapter 7.2. Pollution Status of Persistent
    LARGE MARINE ECOSYSTEMS: STATUS AND TRENDS Chapter 7.2. Polluton status of persistent organic pollutants Lead Author +LGHVKLJH7DNDGD /DERUDWRU\RI2UJDQLF*HRFKHPLVWU\7RN\R8QLYHUVLW\RI$JULFXOWXUHDQG7HFKQRORJ\ Contributng Author 5HL<DPDVKLWD /DERUDWRU\RI2UJDQLF*HRFKHPLVWU\7RN\R8QLYHUVLW\RI$JULFXOWXUHDQG7HFKQRORJ\ Chapter Citaton 7DNDGD+<DPDVKLWD5 &KDSWHU3ROOXWLRQVWDWXVRISHUVLVWHQWRUJDQLFSROOXWDQWV,Q,2& 81(6&2DQG81(3 Large Marine Ecosystems: Status and Trends8QLWHG1DWLRQV(QYLURQPHQW 3URJUDPPH1DLURELSS 164 POLLUTION AND ECOSYSTEM HEALTH 7.2 Pollution status of persistent organic pollutants SuMMary Persistent organic pollutants (POPs) are man-made chemicals used in industrial and agricultural applicatons; they are widely distributed throughout marine ecosystems. They accumulate in living tssues, become more concentrated through the food chain, and are toxic. POPs pose a health risk to marine biota at higher trophic levels and to human consumers of some sea foods, and have been regulated through the Stockholm Conventon on Persistent Organic Pollutants since 2004. Understanding the status, trends, and distributon of POPs in LMEs, and identfying pollutant sources, are important for assessing and maintaining marine ecosystem health, as well as for evaluatng the efectveness of regulaton. This assessment used plastc resin pellets as passive samplers of POPs in LMEs. The pellets, which are used in the manufacturing of plastc products, are found washed up on beaches all over the world. The pellets sorb and concentrate POPs from the surrounding seawater. Pellets from 193 locatons in 37 LMEs were collected by volunteers through the Internatonal Pellet Watch (IPW) programme between 2005 and 2014 and sent to laboratories to be analysed for three classes of POPs: PCBs (polychlorinated biphenyls), DDTs (dichlorodiphenyltrichloroethane and related chemicals), and HCHs (hexachlorocyclohexane isomers).
    [Show full text]
  • The Foundation for Global Action on Persistent Organic Pollutants: a United States Perspective
    The Foundation for Global Action on Persistent Organic Pollutants: A United States Perspective Office of Research and Development Washington, DC 20460 EPA/600/P-01/003F NCEA-I-1200 March 2002 www.epa.gov Disclaimer Mention of trade names or commercial products does not constitute endorsement or recommendation for use. Cover page credits: Bald eagle, U.S. FWS; mink, Joe McDonald/Corbis.com; child, family photo, Jesse Paul Nagaruk; polar bear, U.S. FWS; killer whales, Craig Matkin. Contents Contributors ................................................................................................. vii Executive Summary ....................................................................................... ix Chapter 1. Genesis of the Global Persistent Organic Pollutant Treaty ............ 1-1 Why Focus on POPs? ................................................................................................. 1-2 The Four POPs Parameters: Persistence, Bioaccumulation, Toxicity, Long-Range Environmental Transport ......................................................... 1-5 Persistence ......................................................................................................... 1-5 Bioaccumulation ................................................................................................. 1-6 Toxicity .............................................................................................................. 1-7 Long-Range Environmental Transport .................................................................. 1-7 POPs
    [Show full text]
  • Addressing Persistent Organic Pollutants
    Minnesota Journal of Law & Inequality Volume 30 Issue 1 Article 3 June 2012 Arctic Justice: Addressing Persistent Organic Pollutants Elizabeth Burleson Stephanie Dodson Dougherty Follow this and additional works at: https://lawandinequality.org/ Recommended Citation Elizabeth Burleson & Stephanie Dodson Dougherty, Arctic Justice: Addressing Persistent Organic Pollutants, 30(1) LAW & INEQ. 57 (2012). Available at: https://scholarship.law.umn.edu/lawineq/vol30/iss1/3 Minnesota Journal of Law & Inequality is published by the University of Minnesota Libraries Publishing. 57 Arctic Justice: Addressing Persistent Organic Pollutants Elizabeth Burlesont & Stephanie Dodson Doughertytt Introduction Persistent Organic Pollutants (POPs), anthropogenic chemicals produced for or by agricultural and industrial uses, contaminate all regions of the world.! There are three general categories of POPs: pesticides (including insecticides, herbicides, and fungicides), industrial chemicals, and unintentionally produced byproducts of certain chemical and combustion processes.2 The pesticide dichlorodiphenyltrichloroethane (DDT) is perhaps the most well known of the POPs.' It was heavily relied upon during World War II to control the spread of certain diseases and is still used to control malaria in several developing nations.' Another POP is a class of chemicals collectively known as polychlorinated biphenyls (PCBs), which are widely used as dielectric fluid in transformers and capacitors. Dioxins are an example of unintentionally produced POPs.' These are chemicals released by incomplete combustion or by the manufacture of certain pesticides.' Although these chemicals are produced for beneficial purposes (or as a byproduct), it has become apparent t. Professor Elizabeth Burleson has an LL.M. from the London School of Economics and Political Science and a J.D. from the University of Connecticut School of Law.
    [Show full text]
  • Assessment of Global Megatrends — an Update
    Assessment of global megatrends — an update Global megatrend 10: Increasing environmental pollution Cover design: EEA Layout: EEA/Pia Schmidt Legal notice The contents of this publication do not necessarily reflect the official opinions of the European Commission or other institutions of the European Union. Neither the European Environment Agency nor any person or company acting on behalf of the Agency is responsible for the use that may be made of the information contained in this report. Copyright notice © European Environment Agency, 2014 Reproduction is authorised, provided the source is acknowledged, save where otherwise stated. The present chapter was authored by Tobias Lung with contributions from John van Aardenne, Michael Asquith, Thomas Henrichs, Frank Wugt Larsen, Anke Lükewille, Anita Pirc Velkavrh and Teresa Ribeiro. European Environment Agency Kongens Nytorv 6 1050 Copenhagen K Denmark Tel.: +45 33 36 71 00 Fax: +45 33 36 71 99 Web: eea.europa.eu Enquiries: eea.europa.eu/enquiries Assessment of global megatrends — an update Global megatrend 10: Increasing environmental pollution Assessment of global megatrends — an update Europe is bound to the rest of the world through its five-yearly flagship report on the European an enormous number of systems — environmental, environment's state and outlook (SOER 2010). economic, social, political and others. Such The exploratory analysis summarised 11 global networks enable complex flows of materials megatrends grouped into five clusters — social, and ideas across the globe, producing uncertain technological, economic, environmental and feedbacks and knock-on effects over time. governance. Introducing the issues succinctly, it Greenhouse gas emissions in Europe today can sought to trigger a discussion about how Europe affect the climate in distant locations and far into should monitor and assess future changes in order the future.
    [Show full text]
  • Characteristics and Health Risk Assessment of PM2.5-Bound Pahs During Heavy Air Pollution Episodes in Winter in Urban Area of Beijing, China
    atmosphere Article Characteristics and Health Risk Assessment of PM2.5-Bound PAHs during Heavy Air Pollution Episodes in Winter in Urban Area of Beijing, China Mei Luo 1,2,4,†, Yuanyuan Ji 2,3,†, Yanqin Ren 1, Fuhong Gao 3, Hao Zhang 1, Lihui Zhang 1, Yanqing Yu 1 and Hong Li 2,* 1 Department of Urban Construction, Beijing City University, Beijing 100083, China; [email protected] (M.L.); [email protected] (Y.R.); [email protected] (H.Z.); [email protected] (L.Z.); [email protected] (Y.Y.) 2 State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; [email protected] 3 College of Earth Sciences, Jilin University, Changchun 130061, China; [email protected] 4 Beijing Municipal Research Institute of Environmental Protection, National Engineering Research Center of Urban Environmental Pollution Control, Beijing 100037, China * Correspondence: [email protected] † These authors contributed equally to this work. Abstract: PM2.5 level has decreased significantly in Beijing in recent years due to the strict air quality control measures taken in Jingjinji Region and the surrounding areas. However, the variation characteristics of the concentrations of PM2.5-bound polycyclic aromatic hydrocarbons (PAHs) in Beijing in recent years are still not so clear. In order to understand the pollution status of PM2.5- Citation: Luo, M.; Ji, Y.; Ren, Y.; Gao, bound PAHs in Beijing, fifteen PAHs were measured in a typical urban area of Beijing from 1 March F.; Zhang, H.; Zhang, L.; Yu, Y.; Li, H.
    [Show full text]
  • Persistent Lipophilic Contaminants and Other Chemical Residues in The
    1 PERSISTENT LIPOPHILIC CONTAMINANTS AND OTHER CHEMICAL RESIDUES IN THE SOUTHERN HEMISPHERE Des W. Connell1,Gregory J.Miller2, Munro R.Mortimer2, Glen R. Shaw2 and Shelly M. Anderson2 1 Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong on leave from the Faculty of Environmental Sciences, Griffith University, Nathan, Qld 4111, Australia. 2 Envirotest, Mt. Gravatt Research Park, Nathan Qld4111, Australia Abstract: Data on the levels of persistent lipophilic contaminants and other chemicals has been reviewed and the dominant persistent lipophilic contaminants in the Southern Hemisphere found to be the chlorohydrocarbons commonly described as the DDTs, HCH’s and the PCBs. The distribution patterns suggest that long range transport, probably by global distillation, occurred with these substances. Endosulfan residues appear significant in areas of usage but the data is limited. The data is in accord with a reduction in usage of chlorohydrocarbons in developed countries but an increase in usage in many tropical countries. A systematic comparison of data on the Northern and Southern Hemispheres indicates that the Northern Hemisphere is generally more contaminated than the Southern Hemisphere. It also suggests that the process of equilibration between the two hemispheres is relatively slow. In addition with the HCB’s there is an equatorial to polar gradation in concentration probably as a result of global distillation. With the HCH’s relatively high 2 concentrations exist in the tropics probably due to their heavy usage in these regions. With the HCB’s, DDTs and PCBs the concentrations appear to be more localised in relation to the sources since these substances are less volatile than the compounds mentioned previously.
    [Show full text]
  • Persistent Organic Pollutants
    PERSISTENT ORGANIC POLLUTANTS An Assessment Report on: DDT-Aldrin-Dieldrin-Endrin-Chlordane Heptachlor-Hexachlorobenzene Mirex-Toxaphene Polychlorinated Biphenyls Dioxins and Furans Prepared by: L. Ritter, K.R. Solomon, J. Forget Canadian Network of Toxicology Centres 620 Gordon Street Guelph ON Canada and M. Stemeroff and C.O'Leary Deloitte and Touche Consulting Group 98 Macdonell St., Guelph ON Canada For: The International Programme on Chemical Safety (IPCS) within the framework of the Inter-Organization Programme for the Sound Management of Chemicals (IOMC) This report is produced for the International Programme on Chemical Safety (IPCS). The work is carried out within the framework of the Inter-Organization Programme for the Sound Management of Chemicals (IOMC). The report does not necessarily represent the decisions or the stated policy of the United Nations Environment Programme, the International Labour Organisation, or the World Health Organization. The International Programme on Chemical Safety (IPCS) is a joint venture of the United Nations Environment Programme, the International Labour Organisation, and the World Health Organization. The main objective of the IPCS is to carry out and disseminate evaluations of the effects of chemicals on human health and the quality of the environment. Supporting activities include the development of epidemiological, experimental laboratory, and risk-assessment methods that could produce internationally comparable results, and the development of human resources in the field of chemical safety. Other activities carried out by the IPCS include the development of know-how for coping with chemical accidents, strengthening capabilities for prevention of an response to chemical accidents and their follow-up, coordination of laboratory testing and epidemiological studies, and promotion of research on the mechanisms of the biological action of chemicals.
    [Show full text]
  • Pathways of Organic Chemical Contamination in Ecosystems - Padma T
    ENVIRONMENTAL AND ECOLOGICAL CHEMISTRY – Vol. III – Pathways of Organic Chemical Contamination in Ecosystems - Padma T. Venkatraman PATHWAYS OF ORGANIC CHEMICAL CONTAMINATION IN ECOSYSTEMS Padma T. Venkatraman College of William and Mary, USA Keywords: Persistent Organic Pollutants, Global transport, Enantiomer ratios, Stable isotopes. Contents 1. Introduction 2. Sources and Input of Organic Pollutants to the Environment 2.1. Diffusive versus Point Sources 2.2. Important Classes of Organic Pollutants 2.3. Degradable versus Persistent Pollutants 2.4. Pollutants of Emerging Concern 2.5. Compounds and Mixtures 3. Transport pathways within ecosystems 3.1. Effect of Chemical Properties 3.2. Environmental Factors Affecting Transport 4. Degradation pathways 4.1. Photodegradation 4.2. Hydrolysis 4.3. Biodegradation 5. Spatial scales of pollutant transport pathways 5.1. Local Transport 5.2. Regional Transport 5.3. National Scale 5.4. Continental Scale 5.5. Global Transport 5.5.1. Evidence in Support of Global Distillation 5.5.2. Cold Condensation and Accumulation 5.5.3 Significance of Global Transport 6. Use of geochemicalUNESCO tracers to track contaminant – EOLSS pathways through ecosystems 6.1. Isomer Ratios 6.1.1. Measurement of Isomer Ratios 6.1.2. UseSAMPLE of Isomer Ratios to Study ContaminantCHAPTERS Pathways 6.2. Enantiomer Ratios 6.2.1. Measurement of Enantiomer Ratios 6.2.2. Use of Enantiomer Ratios to Study Contaminant Pathways 6.3. Stable Isotope Ratios 6.3.1. Measurement of Stable Isotope Ratios 6.3.2. Use of Elemental Stable Isotope Ratios to Study Contaminant Pathways 6.3.3. Use of Compound Specific Stable Isotope Ratios (CSIRs) to Study Contaminant Pathways 7.
    [Show full text]
  • The Influence of Ecological Processes on the Accumulation of Persistent Organochlorines in Aquatic Ecosystems
    master The influence of ecological processes on the accumulation of persistent organochlorines in aquatic ecosystems Olof Berglund DISTRIBUTION OF THIS DOCUMENT IS IKLOTED FORBGN SALES PROHIBITED eX - Department of Ecology Chemical Ecology and Ecotoxicology Lund University, Sweden Lund 1999 DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document. The influence of ecologicalprocesses on the accumulation of persistent organochlorinesin aquatic ecosystems Olof Berglund Akademisk avhandling, som for avlaggande av filosofie doktorsexamen vid matematisk-naturvetenskapliga fakulteten vid Lunds Universitet, kommer att offentligen forsvaras i Bla Hallen, Ekologihuset, Solvegatan 37, Lund, fredagen den 17 September 1999 kl. 10. Fakultetens opponent: Prof. Derek C. G. Muir, National Water Research Institute, Environment Canada, Burlington, Canada. Avhandlingen kommer att forsvaras pa engelska. Organization Document name LUND UNIVERSITY DOCTORAL DISSERTATION Department of Ecology Dateofi=" Sept 1,1999 Chemical Ecology and Ecotoxicology S-223 62 Lund CODEN: SE-LUNBDS/NBKE-99/1016+144pp Sweden Authors) Sponsoring organization Olof Berglund Title and subtitle The influence of ecological processes on the accumulation of persistent organochlorines in aquatic ecosystems Abstract Several ecological processes influences the fate, transport, and accumulation of persistent organochlorines (OCs) in aquatic ecosystems. In this thesis, I have focused on two processes, namely (i) the food chain bioaccumulation of OCs, and (ii) the trophic status of the aquatic system. To test the biomagnification theory, I investigated PCB concentrations in planktonic food chains in lakes. The concentra­ tions of PCB on a lipid basis did not increase with increasing trophic level. Hence, I could give no support to the theory of bio­ magnification.
    [Show full text]
  • Comprehensive Assessment of Toxic Chemical Pollutants at Trombay Region
    Summary Anthropogenic activities like industrial production and transportation, a wide range of chemical pollutants such as trace and toxic metals, pesticides, polycyclic aromatic hydrocarbons etc. eventually found their way into various environmental compartments. These pollutants get distributed among soil, water bodies, air and if left unattended can cause serious health risk to all exposed ecosystem components including human beings. These compounds may produce immediate toxicity to ecosystems or exhibit long term effects such as mutagenicity, carcinogenicity or biomagnify (concentrations of pollutant increase per unit body weight) in higher trophic organism of the food chain. Thus regular monitoring of these toxic chemicals in all the environmental matrices is unquestionably essential for reclaiming our natural resources. This report describes some of the activities of Environmental Assessment Division which are having direct relevance to the public health and regulatory bodies. Extensive studies were carried out in our laboratories for the Trombay site, over the years; on the organic as well as inorganic pollution in the environment to understand inter compartmental behaviour of these chemical pollutants. In this report attempt has been made to compare the data on various toxic chemical pollutants that are being monitored regularly at Trombay site and their levels are compared with existing regulations. For monitoring, methodologies have been standardized for characterization of toxic chemical pollutants using different analytical techniques. Regular sample collection from different environmental matrices has been done. Sample analysis has been carried out using different analytical instruments such as high performance liquid chromatograph, ion chromatograph, gas chromatograph, atomic absorption spectrophotometer, and differential pulse anodic stripping voltammetry. Major portion of the study covers Air quality monitoring of toxic chemical pollutants, as the other matrices water and soil are less likely to be polluted at the study site.
    [Show full text]
  • Soil Pollution: a Hidden Reality
    SOIL POLLUTION: A HIDDEN REALITY THANKS TO THE FINANCIAL SUPPORT OF RUSSIAN FEDERATION SOIL POLLUTION: AHIDDEN ISBN 978-92-5-130505-8 REALITY 9 789251 305058 I9183EN/1/04.18 SOIL POLLUTION AHIDDEN REALITY SOIL POLLUTION AHIDDEN REALITY Authors Natalia Rodríguez Eugenio, FAO Michael McLaughlin, University of Adelaide Daniel Pennock, University of Saskatchewan (ITPS Member) Reviewers Gary M. Pierzynski, Kansas State University (ITPS Member) Luca Montanarella, European Commission (ITPS Member) Juan Comerma Steffensen, Retired (ITPS Member) Zineb Bazza, FAO Ronald Vargas, FAO Contributors Kahraman Ünlü, Middle East Technical University Eva Kohlschmid, FAO Oxana Perminova, FAO Elisabetta Tagliati, FAO Olegario Muñiz Ugarte, Cuban Academy of Sciences Amanullah Khan, University of Agriculture Peshawar (ITPS Member) Edition, Design & Publication Leadell Pennock, University of Saskatchewan Matteo Sala, FAO Isabelle Verbeke, FAO Giulia Stanco, FAO FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS Rome, 2018 DISCLAIMER AND COPYRIGHT Recommended citation Rodríguez-Eugenio, N., McLaughlin, M. and Pennock, D. 2018. Soil Pollution: a hidden reality. Rome, FAO. 142 pp. The designations employed and the presentation of material in this information product do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations (FAO) concerning the legal or development 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 products of manufacturers, whether or not these have been patented, does not imply that these have been endorsed or recommended by FAO in preference to others of a similar nature that are not mentioned.
    [Show full text]
  • The Grasshopper Effect
    The Grasshopper Effect By: Avery, Colleen, Sasha, and Shyanne What is the Grasshopper Effect? ● Scientifically known as global distillation ● The Grasshopper Effect is when persistent organic pollutants and other chemicals are transported from one region to another through wind cycles and heat differences. The Grasshopper Effect (cont.) -it is more common for the chemicals to be released in warmer areas and travel to cooler areas ~ex. poles or mountain tops -process can occur multiple times due to condensation and evaporation ~pollutants released in South America can evaporate and condescend many times before becoming trapped in the cool arctic zones -when trapped chemicals accumulate in the soil, water, and air where they pollute living organisms and humans The Grasshopper Effect (cont.) Chemicals/Pollutants *POP Persistent organic pollutants -carbon based chemical compounds that include PCBs, pesticides, and wastes -POPs are the most common chemical to undergo global distillation, they are able to travel through the air and water far distances -are able to concentrate and bioaccumulate in organisms and humans -they can become a threat to human health and the environment even if the chemicals were not originally released in that area -mostly all POPs effect newborns through breast milk of a mother exposed to the chemicals. DDT (Dichlorodiphenyltrichloroethane) Source: Pesticides that include DDT are absorbed by the soil and bioaccumulated as it gets into plants that humans later eat. DDT also has lasting effects, still remaining in the soil for multiple years. Effects on the human body: DDT stores itself and accumulates in fat and oil cells. It is suspected to be a common cause of breast cancer and is linked to neurological problems such as Parkinsons.
    [Show full text]