Study on Environmental and Health Effects of HFO Refrigerants (Publication Number: M-917|2017)

Total Page:16

File Type:pdf, Size:1020Kb

Study on Environmental and Health Effects of HFO Refrigerants (Publication Number: M-917|2017) Study on environmental and health effects of HFO refrigerants (Publication number: M-917|2017) Report prepared for the Norwegian Environment Agency 22 December 2017 Study on environmental and health effects of HFO refrigerants Final Report RPA Report – Assured quality Project reference / title J972 / NEA HFO refrigerants Report status Final report David Fleet Dr James Hanlon Authors Dr Kate Osborne Max La Vedrine Paul Ashford (Anthesis-Caleb) Approved for issue by Meg Postle Date of issue 22 December 2017 Disclaimer The views and propositions expressed herein are, unless otherwise stated, those of Risk & Policy Analysts and do not necessarily represent any official view of the Norwegian Environment Agency or any other organisation mentioned in this report. List of abbreviations A2L Mildly flammable refrigerants category A5; non-A5 Article 5 Developing countries; non-Article 5 Developed countries BAU Business As Usual Cefic European Chemical Industry Council CF3C(O)H Trifluoroacetaldehyde - CF3COO Trifluoroacetate CFC Chlorofluorocarbon CLP Classification, Labelling and Packaging CMR Carcinogenic, mutagenic or toxic to reproduction CO2 Carbon dioxide COF2 Carbonyl fluoride CSR Chemical Safety Report EC10 10% effective concentration (the concentration that causes the measured effect in 10% of organisms) EC25 25% effective concentration (the concentration that causes the measured effect in 25% of organisms) EC50 Half maximum response dose (the concentration that causes the measured effect in 50% of organisms) ECHA European Chemicals Agency EEAP Environmental Effects Assessment Panel EUSES European Union System for the Evaluation of Substances GWP Global Warming Potential HC(O)Cl Formyl chloride HC(O)F Formyl fluoride HC(O)OH Formic acid HCFC Hydrochlorofluorocarbon HCFO Hydrochlorofluoroolefin HCHO Formaldehyde HCl Hydrochloric acid HF Hydrofluoric acid, hydrogen fluoride HFC Hydrofluorocarbon HFO Hydrofluoroolefin LC50 Lethal concentration for 50% of the population LOAEL Local Observed Adverse Effect Level MAC Mobile Air Conditioning MAK Maximum Concentration at the Workplace MIT-5 Mitigation 5 MoE Margin of Exposure MOS Margin Of Safety NO Nitric oxide NO3 Nitrate radical NOAEL No Observed Adverse Effect Level NOEC No Observed Effect Concentration NOEL No Observed Effect Level O3 Ozone ODS Ozone-depleting substance OECD Organization for Economic Cooperation and Development OEL Occupational exposure level OH Hydroxyl radical PEC Predicted Environmental Concentration PNEC Predicted No-Effect Concentration PPE Personal Protection Equipment ppm Parts per million ppt Parts per trillion QSAR Quantitative Structure Activity Relationship RAC Refrigeration & Air Conditioning RACHP Refrigeration, Air Conditioning and Heat Pumps RCR Risk Characterisation Ratio REACH Registration, Evaluation, Authorisation and Restriction of Chemicals SDS Safety Data Sheet SNAP Significant New Alternatives Policy STP Sewage Treatment Plan TEAP Technology and Economic Assessment Panel TFA Trifluoroacetic acid, CF3C(O)OH TFF Trifluoroacetyl fluoride, CF3COF TSCA Toxic Substances Control Act TWA Time-weighted average UNEP United Nations Environment Programme US EPA United States Environmental Protection Agency WMO World Meteorological Organization Table of contents Summary ................................................................................................................................... 12 1 Introduction ......................................................................................................................... 1 Background ..................................................................................................................................... 1 Objectives of the study ................................................................................................................... 1 Aims and structure of this report.................................................................................................... 1 2 Methodology ........................................................................................................................ 3 Overview of the methodology ........................................................................................................ 3 Task 1: Grey literature..................................................................................................................... 3 Task 2: Academic literature ............................................................................................................ 3 Task 3: Selection of relevance and data extraction- DistillerSR® .................................................... 4 2.4.1 Screening of the literature .............................................................................................. 4 2.4.2 Data extraction................................................................................................................ 4 2.4.3 Literature review outputs ............................................................................................... 4 Task 4: Consultation ........................................................................................................................ 4 Task 5: Assessing HFO projections ................................................................................................. 4 2.6.1 Introduction .................................................................................................................... 4 Task 6: Risk assessment for HFOs ................................................................................................... 5 2.7.1 VEGA ............................................................................................................................... 5 2.7.2 EUSES .............................................................................................................................. 5 3 Substance information .......................................................................................................... 6 Overview of HFOs and HFO blends currently used/likely to be used as refrigerants ..................... 6 HFO substances that are used/likely to be used as refrigerants .................................................... 7 3.2.1 HFO only refrigerants ...................................................................................................... 7 3.2.2 HFO blends .................................................................................................................... 12 HFO impurities .............................................................................................................................. 13 4 HFO emissions estimates - projected up to 2100 .................................................................. 15 Overview ....................................................................................................................................... 15 Projected emissions ...................................................................................................................... 15 4.2.1 Output from BAU scenarios up to 2050 ........................................................................ 16 4.2.2 Output from MIT-5 scenarios up to 2050 ..................................................................... 18 4.2.3 Discussion/comparison of the results from BAU and MIT-5 scenario up to 2050 ........ 21 The impact of ‘natural’ refrigerants on HFO consumption ........................................................... 22 5 Chemical processes and degradation products .................................................................... 24 Chemical processes ....................................................................................................................... 24 5.1.1 Atmospheric dispersion and degradation mechanisms ................................................ 24 Degradation products ................................................................................................................... 25 5.2.1 TFA ................................................................................................................................ 26 6 Environmental impacts ....................................................................................................... 29 Environmental compartments where TFA is found ...................................................................... 29 6.1.1 TFA in surface waters .................................................................................................... 29 6.1.2 TFA in soils ..................................................................................................................... 30 6.1.3 Terminal sinks and hotspots ......................................................................................... 30 Environmental effects of TFA ........................................................................................................ 32 6.2.1 Concentrations of TFA in the environment .................................................................. 32 6.2.2 Toxicity of TFA .............................................................................................................. 34 Environmental effects of other decomposition products ............................................................ 41 7 Human health impacts ........................................................................................................ 43 Hazards to human health .............................................................................................................
Recommended publications
  • Ammonia As a Refrigerant
    1791 Tullie Circle, NE. Atlanta, Georgia 30329-2305, USA www.ashrae.org ASHRAE Position Document on Ammonia as a Refrigerant Approved by ASHRAE Board of Directors February 1, 2017 Expires February 1, 2020 ASHRAE S H A P I N G T O M O R R O W ’ S B U I L T E N V I R O N M E N T T O D A Y © 2017 ASHRAE (www.ashrae.org). For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAE’s prior written permission. COMMITTEE ROSTER The ASHRAE Position Document on “Ammonia as a Refrigerant” was developed by the Society’s Refrigeration Committee. Position Document Committee formed on January 8, 2016 with Dave Rule as its chair. Dave Rule, Chair Georgi Kazachki IIAR Dayton Phoenix Group Alexandria, VA, USA Dayton, OH, USA Ray Cole Richard Royal Axiom Engineers, Inc. Walmart Monterey, CA, USA Bentonville, Arkansas, USA Dan Dettmers Greg Scrivener IRC, University of Wisconsin Cold Dynamics Madison, WI, USA Meadow Lake, SK, Canada Derek Hamilton Azane Inc. San Francisco, CA, USA Other contributors: M. Kent Anderson Caleb Nelson Consultant Azane, Inc. Bethesda, MD, USA Missoula, MT, USA Cognizant Committees The chairperson of Refrigerant Committee also served as ex-officio members: Karim Amrane REF Committee AHRI Bethesda, MD, USA i © 2017 ASHRAE (www.ashrae.org). For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAE’s prior written permission. HISTORY of REVISION / REAFFIRMATION / WITHDRAWAL
    [Show full text]
  • HFO-1234Yf) Combustion
    Kinetic Mechanism of 2,3,3,3-Tetrafluoropropene (HFO-1234yf) Combustion V.I. Babushok, G.T Linteris Engineering Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, USA Short communication To be submitted to “Journal of Fluorine Chemistry” Corresponding author: Valeri I. Babushok Engineering Laboratory National Institute of Standards and Technology Gaithersburg, MD, USA E-mail: [email protected] Phone: 301-975-8975 Keywords: R-1234yf; Refrigerant flammability, Burning velocity, Low ODP/GWP refrigerants, kinetic model. 1 Kinetic Mechanism of 2,3,3,3-Tetrafluoropropene (HFO-1234yf) Combustion V.I. Babushok, G.T Linteris Engineering Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, USA Abstract A kinetic model for 2,3,3,3-tetrafluoropropene (HFO-1234yf) high temperature oxidation and combustion is proposed. It is combined with the GRI-Mech-3.0 model, with the previously developed model for 2-bromo-3,3,3-trifluoropropene (2-BTP), and with the NIST C1-C2 hydrofluorocarbon model. The model includes 909 reactions and 101 species. Combustion equilibrium calculations indicate a maximum combustion temperature of 2076 K for an HFO- 1234yf volume fraction of 0.083 in air for standard conditions (298 K, 0.101 MPa). Modeling of flame propagation in mixtures of 2,3,3,3-tetrafluoropropene with oxygen- enriched air demonstrates that the calculated maximum burning velocity reproduces the experimentally observed maximum burning velocity within about ___%reasonably well. However, the calculated maximum is observed in lean mixtures in contrast to the experimental results showing the maximum burning velocity shifted to the rich mixtures of HFO-1234yf. Keywords: R-1234yf; rRefrigerant flammability; bBurning velocity; lLow ODP/GWP refrigerants; kinetic model.
    [Show full text]
  • Purification Process of Pentafluoroethane (HFC-125) Verfahren Zur Reinigung Von Pentafluorethan (HFC-125) Procédé De Purification Du Pentafluoroéthane (HFC-125)
    Europäisches Patentamt *EP001153907B1* (19) European Patent Office Office européen des brevets (11) EP 1 153 907 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) Int Cl.7: C07C 17/386 of the grant of the patent: 06.10.2004 Bulletin 2004/41 (21) Application number: 01109907.4 (22) Date of filing: 24.04.2001 (54) Purification process of pentafluoroethane (HFC-125) Verfahren zur Reinigung von Pentafluorethan (HFC-125) Procédé de purification du pentafluoroéthane (HFC-125) (84) Designated Contracting States: • Basile, Giampiero DE ES FR GB IT NL 15100 Alessandria (IT) (30) Priority: 09.05.2000 IT MI001006 (74) Representative: Jacques, Philippe et al Solvay S.A. (43) Date of publication of application: Département de la Propriété Industrielle, 14.11.2001 Bulletin 2001/46 Rue de Ransbeek, 310 1120 Bruxelles (BE) (73) Proprietor: Solvay Solexis S.p.A. 20121 Milano (IT) (56) References cited: EP-A- 0 626 362 EP-A- 0 985 650 (72) Inventors: • Azzali, Daniele 20021 Bollate (MI) (IT) Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). EP 1 153 907 B1 Printed by Jouve, 75001 PARIS (FR) EP 1 153 907 B1 Description [0001] The present invention relates to a purification process of pentafluoroethane (HFC-125) containing as impurity chloropentafluoroethane (CFC-115).
    [Show full text]
  • LIFE Country Overview Italy 2021
    Italy Overview This document provides an overview of LIFE in Italy. It showcases key data and some of the latest LIFE projects. You will also find contact details and other useful resources and a full list of current and recently-finished LIFE projects. Every year calls for project proposals are launched covering the LIFE programme’s priority areas. ABOUT LIFE The LIFE programme is the EU's funding instrument for the environment and climate action. It has been running since 1992 and has co-financed more than 5 400 projects across the EU and in third countries, mobilising over €12 billion and contributing more than €5.64 billion to the protection of the environment and climate. Types of LIFE project: Other types of LIFE funding: Traditional (Environment and Resource Efficiency; Nature NGO operating grants and Biodiversity; Environmental Governance and Natural Capital Financing Facility (NCFF) Information; Climate Change Mitigation; Climate Change Private Finance for Energy Efficiency (PF4EE) Adaptation; Climate Governance and Information). Integrated (Environment, Nature or Climate Action) NCFF and PF4EE are joint initiatives with the European Preparatory Investment Bank, which manages the two funds. Capacity-building For more information visit: https://cinea.ec.europa.eu/life_en Last update: 28/05/21 European Commission/CINEA (https://cinea.ec.europa.eu/life_en) – Page 1 – LIFE Environment and Resource Efficiency This LIFE priority area is aimed at developing, testing and demonstrating best practices, solutions and integrated approaches to environmental challenges, as well as improving the related knowledge base. To date, the LIFE Environment and Resource Efficiency strand (formerly the LIFE Environment Policy and Governance component) has co-financed 530 projects in Italy, representing a total investment of €964 million, of which €415 million has been provided by the EU.
    [Show full text]
  • Nitrogen Oxides in the Troposphere – What Have We Learned from Satellite Measurements?
    Eur. Phys. J. Conferences 1, 149–156 (2009) © EDP Sciences, 2009 THE EUROPEAN DOI: 10.1140/epjconf/e2009-00916-9 PHYSICAL JOURNAL CONFERENCES Nitrogen oxides in the troposphere – What have we learned from satellite measurements? A. Richtera Institute of Environmental Physics, University of Bremen, 28359 Bremen, Germany Abstract. Nitrogen oxides are key species in the troposphere where they are linked to ozone formation and acid rain. The sources of nitrogen oxides are anthropogenic to large extend, mainly through combustion of fossil fuels. Satellite observations of NO2 provide global measurements of nitrogen oxides since summer 1995, and these data have been applied for many studies on the emission sources and strengths, the chemistry and the transport of NOx. In this paper, an overview will be given on satellite measurements of NO2, some examples of typical applications and an outlook on future prospects. 1 NOx in the troposphere Nitrogen oxides play several important roles in the atmosphere. In the stratosphere, they act as catalysts in ozone destruction reducing ozone levels and at the same time form reservoir substances with the halogen oxides thereby reducing their ozone depletion potential. In the troposphere, photolysis of NO2 is the only known route for ozone formation. As ozone is also rapidly destroyed by reaction with NO, nitrogen oxides (NOx =NO+NO2)and ozone are often in photochemical equilibrium in the troposphere. In the presence of HO2 or peroxy radicals (RO2), NO2 is reformed without destruction of an ozone molecule leading to accumulating of O3. Thereby, high levels of NOx together with volatile organic compounds and sufficient illumination lead to photochemical smog.
    [Show full text]
  • RS44B (R453A) Safety Data Sheet
    RS44B (R453A) Safety Data Sheet 06/01/2015 SECTION 1: IDENTIFICATION Product identifier Product Form: Mixture Product Name: In USA as RS44B (R453A) Alternate Names: Blended FormulaIntended Use of the Product Refrigerant Name, Address, and Telephone of the Responsible Party Company ComStar International Inc. 20-45 128th Street, College Point, NY 11356 Emergency Telephone Number Emergency number :(800) 328-0142, (718) 445-7900 SECTION 2: HAZARDS IDENTIFICATION Classification of the Substance or Mixture Classification (GHS-US) Simple Asphyxiant Liquefied gas H280 Label Elements GHS-US Labeling Hazard Pictograms (GHS-US) : Signal Word (GHS-US) : Warning Hazard Statements (GHS-US) : H280 - Contains gas under pressure; may explode if heated May displace oxygen and cause rapid suffocation Precautionary Statements (GHS-US) : P410+P403 - Protect from sunlight. Store in a well-ventilated place Other Hazardsx Other Hazards Not Contributing to the Classification: Exposure may aggravate those with pre-existing eye, skin, or respiratory conditions. Liquid contact with eyes or skin may cause frostbite. Unknown Acute Toxicity (GHS-US) Not available SECTION 3: COMPOSITION/INFORMATION ON INGREDIENTS Substances-Name Product identifier % (w/W) Classification (GHS-US) 1,1,1,2,3,3,3 Heptafluoropropane (HFC 227) (CAS No) 431-89-0 5 Simple Asphyxiant Liquefied gas, H280 Pentafluoroethane (HFC125) (CAS No) 354-33-6 20 Simple Asphyxiant Liquefied gas, H280 1,1,1,2-Tetrafluoroethane (HFC-134a) (CAS No) 811-97-2 53.8 Simple Asphyxiant Liquefied gas, H280 Difluoromethane (HFC-32) (CAS No) 75-10-5 20 Simple Asphyxiant Flam. Gas 1, H220 Liquefied gas, H280 Butane (HC-R600) (CAS No) 106-97-8 0.6 Simple Asphyxiant Flam.
    [Show full text]
  • Ion Chromatographic Analysis of Disinfectant By-Products
    DCU Ion Chromatographic Analysis of Disinfectant By-Products For the award of D octor of Philosophy Leon Barron School of Chem ical Sciences Student ID: 97311006 V S > N C S R National Centra for Sansor Raiaireh Table of Contents Declaration 11 List of Figures 12 List of Tables 20 List of Abbreviations 22 List of Publications 23 List of Poster Presentations 24 List of Oral Presentations 25 List of Honours and A wards 2 5 Acknowledgements 26 Abstract 28 Chapter 1.0 Literature Review 30 1.0 Background 31 1.1 Current Water Treatment Methods 32 1.1.1 Ozonation 32 1.1.2 Chlorination 35 1.2 Factors Affecting the Formation of Disinfectant By- 36 Products 1.2.1 pH 36 1.2.2 Contact Time 37 1.2.3 Temperature and Season 37 1.2.4 Concentration and Properties of Natural Organic Matter 37 1.2.5 Concentration of Chlorine and Residual Chlorine 38 1.2.6 Concentration of Bromide 38 2 1.3 The Haloacetic Acids 39 1.3.1 Chlorinated Acetic Acids 39 1.3.1.1 Physical and Chemical Properties 39 1.3.1.2 Effects on Laboratory Animals and/or 39 Humans 1.3.2 Brominated Acetic Acids 40 1.3.2.1 Physical Properties 40 1.3.2.2 Effect on Laboratory Animals and/or 41 Humans 1.4 Chromatographic Determination of Haloacetic Acids 42 1.4.1 Introduction to chromatographic theory 42 1.4.2 Band broadening in chromatography 45 1.4.2.1 Multiple path lengths 45 1.4.2.3 Molecular diffusion 46 1.4.2.4 Mass transfer 47 1.4.2.5 The van Deemter equation 47 1.5 Ion Exchange Chromatography 48 1.5.1 The Ion Exchange Process 49 1.5.1.1 Cation Exchange 49 1.5.1.2 Anion Exchange 49 1.5.2 Ion
    [Show full text]
  • 60 Examples of Natural Refrigerant Stories in Article 5 Countries and Eits July 2012 Ŝŷƚƌžěƶđɵžŷ !"#$%&"#'"$(
    60 EXAMPLES OF NATURAL REFRIGERANT STORIES IN ARTICLE 5 COUNTRIES AND EITS JULY 2012 ŝŶƚƌŽĚƵĐƟŽŶ !"#$%&"#'"$( dŚĞƵƐĞŽĨŽnjŽŶĞͲĚĞƉůĞƟŶŐĂŶĚŚŝŐŚͲŐůŽďĂůǁĂƌŵŝŶŐƐƵďƐƚĂŶĐĞƐŚĂƐďĞĐŽŵĞĂƌŝƐ) ŝŶŐĐŽŶĐĞƌŶƚŽƚŚĞŝŶƚĞƌŶĂƟŽŶĂůĐŽŵŵƵŶŝƚLJ͕ŐŝǀĞŶƚŚĞŝƌĞŶǀŝƌŽŶŵĞŶƚĂůŝŵƉĂĐƚĨƌŽŵ ĞdžƚĞŶĚĞĚƵƐĞ͕ĐŽŵďŝŶĞĚǁŝƚŚƟŐŚƚĞŶŝŶŐƐƵƉƉůLJĂŶĚƌŝƐŝŶŐƌĂǁŵĂƚĞƌŝĂůƐĐŽƐƚ͘&Ɛ͕ ,&ƐĂŶĚ,&ƐƵƐĞĚĂƐƌĞĨƌŝŐĞƌĂŶƚƐĂƌĞĞŝƚŚĞƌĂůƌĞĂĚLJĐŽǀĞƌĞĚďLJŐůŽďĂůĂŐƌĞĞ) ŵĞŶƚƐŽƌĐƵƌƌĞŶƚůLJĚŝƐĐƵƐƐĞĚƵŶĚĞƌƉŚĂƐĞͲŽƵƚƐĐŚĞĚƵůĞƐ͘tŚĞƌĞŝŶĚŝǀŝĚƵĂůƌƟĐůĞ ϱĐŽƵŶƚƌŝĞƐŚĂǀĞƚĂŬĞŶƚŚĞůĞĂĚƚŽďĂŶƚŚĞƵƐĞŽĨĂůůŇƵŽƌŝŶĂƚĞĚŐĂƐĞƐŝŶƚŚĞĐŽŵŝŶŐ LJĞĂƌƐ͕ĂŵĂũŽƌŝƚLJŝƐƐƟůůŚĞƐŝƚĂƟŶŐĂƐƚŽǁŚĞƚŚĞƌŶŽŶͲŇƵŽƌŝŶĂƚĞĚƌĞĨƌŝŐĞƌĂŶƚƐĐŽŶƐƟ) ƚƵƚĞĂǀŝĂďůĞĂůƚĞƌŶĂƟǀĞŝŶĂůůĞŶĚͲƵƐĞƐĂŶĚĐŝƌĐƵŵƐƚĂŶĐĞƐ͘ dŚĞƉƌĞƐĞŶƚĐŽůůĞĐƟŽŶŽĨĂƌƟĐůĞƐŝƐŝŶƚĞŶĚĞĚĨŽƌƉŽůŝĐLJŵĂŬĞƌƐŝŶƐĞĂƌĐŚŽĨƐŽůŝĚ ƉƌŽŽĨĨŽƌƚŚĞǀŝĂďŝůŝƚLJŽĨƚŚĞŶĂƚƵƌĂůƐƵďƐƚĂŶĐĞƐĂŵŵŽŶŝĂ͕ĐĂƌďŽŶĚŝŽdžŝĚĞĂŶĚŚLJĚƌŽ) ĐĂƌďŽŶƐƵƐĞĚĂƐƌĞĨƌŝŐĞƌĂŶƚƐŝŶƚŚĞŚĞĂƟŶŐ͕ƌĞĨƌŝŐĞƌĂƟŽŶĂŶĚĐŽŽůŝŶŐŝŶĚƵƐƚƌLJǁŽƌůĚ) ǁŝĚĞ͘dŚĞĐŽŵƉŝůĂƟŽŶǁĂƐƉƌĞƉĂƌĞĚĂŌĞƌĚĞĐŝƐŝŽŶŵĂŬĞƌƐƌĞƉĞĂƚĞĚůLJĞdžƉƌĞƐƐĞĚ ŝŶƚĞƌĞƐƚŝŶŚĂǀŝŶŐŽŶĞƌĞĨĞƌĞŶĐĞĚŽĐƵŵĞŶƚƚŽƐƵŵŵĂƌŝƐĞďĞƐƚͲƉƌĂĐƟĐĞĞdžĂŵƉůĞƐĂŶĚ ĂĚĚƌĞƐƐƚŚĞǀĂƌŝŽƵƐŝƐƐƵĞƐĐƵƌƌĞŶƚůLJƚŚŽƵŐŚƚƚŽƉƌĞǀĞŶƚƚŚĞƵƐĞŽĨŶĂƚƵƌĂůǁŽƌŬŝŶŐ ŇƵŝĚƐŝŶƌƟĐůĞϱĐŽƵŶƚƌŝĞƐ͗ĂǀĂŝůĂďŝůŝƚLJ͕ĐŽƐƚ͕ƚĞĐŚŶŽůŽŐLJ͕ƐĂĨĞƚLJ͕ůĞŐŝƐůĂƟŽŶ͕ƚƌĂŝŶŝŶŐ ΘŬŶŽǁͲŚŽǁĂŶĚŵĂƌŬĞƚͲďĂƐĞĚďĂƌƌŝĞƌƐ͘dŚĞĐŽůůĞĐƟŽŶĂŝŵƐƚŽŚŝŐŚůŝŐŚƚŽƉƉŽƌƚƵŶŝ) ƟĞƐďƵƚůŝŬĞǁŝƐĞŽƵƚůŝŶĞĐŚĂůůĞŶŐĞƐĞŶĐŽƵŶƚĞƌĞĚŝŶĂĚŽƉƟŶŐK*(%+,-ĂŶĚ,ƐĂƐ ƌĞĨƌŝŐĞƌĂŶƚƐ͘ dŚĞĂƌƟĐůĞƐůŝƐƚĞĚŝŶƚŚŝƐĐŽůůĞĐƟŽŶĂƌĞƚĂŬĞŶĨƌŽŵƚŚĞŽŶůŝŶĞŝŶĚƵƐƚƌLJƉůĂƞŽƌŵƐ ǁǁǁ͘ĂŵŵŽŶŝĂϮϭ͘ĐŽŵ͕ǁǁǁ͘ŚLJĚƌŽĐĂƌďŽŶƐϮϭ͘ĐŽŵĂŶĚǁǁǁ͘Zϳϰϰ͘ĐŽŵͲĞĂĐŚ ƐƉĞĐŝĂůŝƐĞĚŽŶŽŶĞƌĞĨƌŝŐĞƌĂŶƚ;ŐƌŽƵƉͿǁŝƚŚůŽǁĞƐƚŐůŽďĂůǁĂƌŵŝŶŐƉŽƚĞŶƟĂůĂŶĚŶŽ ŽnjŽŶĞĚĞƉůĞƟŽŶƉŽƚĞŶƟĂů͘ dŚĞLJǁĞƌĞƉƵďůŝƐŚĞĚŽǀĞƌƚŚĞůĂƐƚϭϮŵŽŶƚŚƐĂŶĚǁĞƌĞƐĞůĞĐƚĞĚĨŽƌƚŚĞŝƌƌĞůĞǀĂŶĐĞ
    [Show full text]
  • Gas Conversion Factor for 300 Series
    300GasTable Rec # Gas Symbol GCF Density (g/L) Density (g/L) 25° C / 1 atm 0° C / 1 atm 1 Acetic Acid C2H4F2 0.4155 2.7 2.947 2 Acetic Anhydride C4H6O3 0.258 4.173 4.555 3 Acetone C3H6O 0.3556 2.374 2.591 4 Acetonitryl C2H3N 0.5178 1.678 1.832 5 Acetylene C2H2 0.6255 1.064 1.162 6 Air Air 1.0015 1.185 1.293 7 Allene C3H4 0.4514 1.638 1.787 8 Ammonia NH3 0.7807 0.696 0.76 9 Argon Ar 1.4047 1.633 1.782 10 Arsine AsH3 0.7592 3.186 3.478 11 Benzene C6H6 0.3057 3.193 3.485 12 Boron Trichloride BCl3 0.4421 4.789 5.228 13 Boron Triflouride BF3 0.5431 2.772 3.025 14 Bromine Br2 0.8007 6.532 7.13 15 Bromochlorodifluoromethane CBrClF2 0.3684 6.759 7.378 16 Bromodifluoromethane CHBrF2 0.4644 5.351 5.841 17 Bromotrifluormethane CBrF3 0.3943 6.087 6.644 18 Butane C4H10 0.2622 2.376 2.593 19 Butanol C4H10O 0.2406 3.03 3.307 20 Butene C4H8 0.3056 2.293 2.503 21 Carbon Dioxide CO2 0.7526 1.799 1.964 22 Carbon Disulfide CS2 0.616 3.112 3.397 23 Carbon Monoxide CO 1.0012 1.145 1.25 24 Carbon Tetrachloride CCl4 0.3333 6.287 6.863 25 Carbonyl Sulfide COS 0.668 2.456 2.68 26 Chlorine Cl2 0.8451 2.898 3.163 27 Chlorine Trifluoride ClF3 0.4496 3.779 4.125 28 Chlorobenzene C6H5Cl 0.2614 4.601 5.022 29 Chlorodifluoroethane C2H3ClF2 0.3216 4.108 4.484 30 Chloroform CHCl3 0.4192 4.879 5.326 31 Chloropentafluoroethane C2ClF5 0.2437 6.314 6.892 32 Chloropropane C3H7Cl 0.308 3.21 3.504 33 Cisbutene C4H8 0.3004 2.293 2.503 34 Cyanogen C2N2 0.4924 2.127 2.322 35 Cyanogen Chloride ClCN 0.6486 2.513 2.743 36 Cyclobutane C4H8 0.3562 2.293 2.503 37 Cyclopropane C3H6 0.4562
    [Show full text]
  • Toxicological Profile for Acetone Draft for Public Comment
    ACETONE 1 Toxicological Profile for Acetone Draft for Public Comment July 2021 ***DRAFT FOR PUBLIC COMMENT*** ACETONE ii DISCLAIMER Use of trade names is for identification only and does not imply endorsement by the Agency for Toxic Substances and Disease Registry, the Public Health Service, or the U.S. Department of Health and Human Services. This information is distributed solely for the purpose of pre dissemination public comment under applicable information quality guidelines. It has not been formally disseminated by the Agency for Toxic Substances and Disease Registry. It does not represent and should not be construed to represent any agency determination or policy. ***DRAFT FOR PUBLIC COMMENT*** ACETONE iii FOREWORD This toxicological profile is prepared in accordance with guidelines developed by the Agency for Toxic Substances and Disease Registry (ATSDR) and the Environmental Protection Agency (EPA). The original guidelines were published in the Federal Register on April 17, 1987. Each profile will be revised and republished as necessary. The ATSDR toxicological profile succinctly characterizes the toxicologic and adverse health effects information for these toxic substances described therein. Each peer-reviewed profile identifies and reviews the key literature that describes a substance's toxicologic properties. Other pertinent literature is also presented, but is described in less detail than the key studies. The profile is not intended to be an exhaustive document; however, more comprehensive sources of specialty information are referenced. The focus of the profiles is on health and toxicologic information; therefore, each toxicological profile begins with a relevance to public health discussion which would allow a public health professional to make a real-time determination of whether the presence of a particular substance in the environment poses a potential threat to human health.
    [Show full text]
  • And Perfluoroalkyl Substances (PFAS): Sources, Pathways and Environmental Data
    Poly- and perfluoroalkyl substances (PFAS): sources, pathways and environmental data Chief Scientist’s Group report August 2021 We are the Environment Agency. We protect and improve the environment. We help people and wildlife adapt to climate change and reduce its impacts, including flooding, drought, sea level rise and coastal erosion. We improve the quality of our water, land and air by tackling pollution. We work with businesses to help them comply with environmental regulations. A healthy and diverse environment enhances people's lives and contributes to economic growth. We can’t do this alone. We work as part of the Defra group (Department for Environment, Food & Rural Affairs), with the rest of government, local councils, businesses, civil society groups and local communities to create a better place for people and wildlife. Published by: Author: Emma Pemberton Environment Agency Horizon House, Deanery Road, Environment Agency’s Project Manager: Bristol BS1 5AH Mark Sinton www.gov.uk/environment-agency Citation: Environment Agency (2021) Poly- and © Environment Agency 2021 perfluoroalkyl substances (PFAS): sources, pathways and environmental All rights reserved. This document may data. Environment Agency, Bri be reproduced with prior permission of the Environment Agency. Further copies of this report are available from our publications catalogue: www.gov.uk/government/publications or our National Customer Contact Centre: 03708 506 506 Email: research@environment- agency.gov.uk 2 of 110 Research at the Environment Agency Scientific research and analysis underpins everything the Environment Agency does. It helps us to understand and manage the environment effectively. Our own experts work with leading scientific organisations, universities and other parts of the Defra group to bring the best knowledge to bear on the environmental problems that we face now and in the future.
    [Show full text]
  • Global Modeling of the Nitrate Radical (NO3)Forpresentand Pre-Industrial Scenarios
    Atmospheric Research 164–165 (2015) 347–357 Contents lists available at ScienceDirect Atmospheric Research journal homepage: www.elsevier.com/locate/atmos Global modeling of the nitrate radical (NO3)forpresentand pre-industrial scenarios M.A.H. Khan a,M.C.Cookea,1, S.R. Utembe a,2, A.T. Archibald a,3,R.G.Derwentb,P.Xiaoa,C.J.Percivalc, M.E. Jenkin d, W.C. Morris a, D.E. Shallcross a,⁎ a Biogeochemistry Research Centre, School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK b rdscientific, Newbury, Berkshire, UK c The Centre for Atmospheric Science, The School of Earth, Atmospheric and Environmental Science, The University of Manchester, Simon Building, Brunswick Street, Manchester, M13 9PL, UK d Atmospheric Chemistry Services, Okehampton, Devon, EX20 4QB, UK article info abstract Article history: Increasing the complexity of the chemistry scheme in the global chemistry transport model STOCHEM to STOCHEM- Received 23 February 2015 CRI (Utembe et al., 2010) leads to an increase in NOx as well as ozone resulting in higher NO3 production over Received in revised form 26 May 2015 forested regions and regions impacted by anthropogenic emission. Peak NO3 is located over the continents near Accepted 8 June 2015 NO emission sources. NO is formed in the main by the reaction of NO with O ,andthesignificant losses of NO Available online 14 June 2015 x 3 2 3 3 are due to the photolysis and the reactions with NO and VOCs. Isoprene is an important biogenic VOC, and the possibility of HO recycling via isoprene chemistry and other mechanisms such as the reaction of RO with HO Keywords: x 2 2 STOCHEM-CRI has been investigated previously (Archibald et al., 2010a).
    [Show full text]