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Survey of Trisodium Nitrilotriacetate

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Survey of Trisodium Nitrilotriacetate Survey of Trisodium nitrilotriacetate A LOUS Review Report Environmental Project No. 1545, 2014 Title: Authors & contributors: Survey of Trisodium nitrilotriacetate Jens Tørsløv, DHI Tina Slothuus, DHI Allan Astrup Jensen, NIPSECT Published by: The Danish Environmental Protection Agency Strandgade 29 1401 Copenhagen K Denmark www.mst.dk Year: ISBN no. 2013 978-87-93026-99-5 Disclaimer: The Danish Environmental Protection Agency will, when opportunity offers, publish reports and contributions relating to environmental research and development projects financed via the Danish EPA. Please note that publication does not signify that the contents of the reports necessarily reflect the views of the Danish EPA. The reports are, however, published because the Danish EPA finds that the studies represent a valuable contribution to the debate on environmental policy in Denmark. While the information provided in this report is believed to be accurate, the Danish Environmental Protection Agency disclaims any responsibility for possible inaccuracies or omissions and consequences that may flow from them. Neither the Danish Environmental Protection Agency nor DHI or any individual involved in the preparation of this publication shall be liable for any injury, loss, damage or prejudice of any kind that may be caused by persons who have acted according to their understanding of the information contained in this publication. May be quoted provided the source is acknowledged. 2 Survey of Trisodium nitrilotriacetate Contents Preface ...................................................................................................................... 4 Summary and conclusions ......................................................................................... 8 Sammenfatning og konklusion ................................................................................ 10 1. Introduction to the substance ........................................................................... 12 1.1 Definition of the substance ................................................................................................... 12 1.2 Physico- chemical properties ............................................................................................... 13 1.3 Salt and complex formation ................................................................................................. 14 2. Regulatory framework...................................................................................... 15 2.1 Legislation ............................................................................................................................. 15 2.1.1 Existing legislation ................................................................................................. 15 2.1.2 Classification and labelling .................................................................................... 19 2.1.3 REACH .................................................................................................................. 20 2.1.4 Other legislation/initiatives ................................................................................... 21 2.2 International agreements ..................................................................................................... 21 2.3 Eco-labels .............................................................................................................................. 21 2.4 Summary and conclusions ................................................................................................... 22 3. Manufacture and uses ...................................................................................... 23 3.1 Manufacturing ..................................................................................................................... 23 3.1.1 Manufacturing processes ...................................................................................... 23 3.1.2 Manufacturing sites .............................................................................................. 23 3.1.3 Manufactured volumes ......................................................................................... 23 3.2 Import and export ................................................................................................................ 24 3.2.1 Import and export of Na3NTA in Denmark ......................................................... 24 3.2.2 Import and export of Na3NTA in EU .................................................................... 25 3.3 Use ........................................................................................................................................ 26 3.4 Historical trends in use ........................................................................................................ 27 3.5 Summary and conclusions ................................................................................................... 29 4. Waste management .......................................................................................... 31 4.1 Waste from manufacture and use of Na3NTA ..................................................................... 31 4.2 Waste products from the use of Na3NTA in mixtures and articles ..................................... 31 4.3 Release of Na3NTA from waste disposal .............................................................................. 31 4.4 Hazardous waste ................................................................................................................... 31 4.5 Summary and conclusions .................................................................................................... 31 5. Environmental effects and exposure ................................................................. 32 5.1 Environmental hazard ......................................................................................................... 32 5.1.1 Classification ......................................................................................................... 32 5.2 Fate and distribution in the environment........................................................................... 33 5.2.1 Abiotic degradation:.............................................................................................. 33 5.2.2 Biotic degradation: ................................................................................................ 33 5.2.3 Adsorption/desorption ......................................................................................... 33 5.2.4 Elimination in sewage treatment plants .............................................................. 34 5.2.5 Biodegradation in natural waters ......................................................................... 34 Survey of Trisodium nitrilotriacetate 3 5.2.6 Biodegradation in soil ........................................................................................... 35 5.2.7 Biodegradation in sediment ................................................................................. 35 5.2.8 Biodegradation in sludge ...................................................................................... 35 5.3 Effects in the environment .................................................................................................. 36 5.3.1 Effects in the aquatic compartment ..................................................................... 36 5.3.2 Predicted No Effect Concentration for aquatic organisms (PNECaquatic) .............37 5.3.3 Effects on microorganisms ....................................................................................37 5.3.4 Predicted No Effect Concentration (PNECSTP) – microorganisms ......................37 5.3.5 Effect on terrestrial organisms ..............................................................................37 5.3.6 Effect in the atmosphere ........................................................................................37 5.3.7 Combination effects ...............................................................................................37 5.3.8 Bioaccumulation ................................................................................................... 38 5.3.9 PBT and vPvB assessment .................................................................................... 38 5.4 Environmental exposure ..................................................................................................... 39 5.4.1 Sources of release .................................................................................................. 39 5.4.2 Monitoring data ..................................................................................................... 41 5.5 Environmental risk characterisation .................................................................................. 43 5.5.1 Aquatic compartments .......................................................................................... 43 5.5.2 Influence on the distribution of heavy metals ..................................................... 44 5.5.3 Atmosphere ........................................................................................................... 44 5.5.4 Terrestrial compartment ...................................................................................... 45 5.6 Summary and conclusions ................................................................................................... 45 6. Human health effects and exposure .................................................................. 46 6.1 Human health hazard .........................................................................................................
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