Evaluation des produits chimiques

Introduction to Emission Scenario Documents

 

 

OECD Series on ESDs

What is an Emission Scenario Document? 
[in-page link]

How is an Emission Scenario Document developed? 
[in-page link]

Comments on published Emission Scenario Documents 
[in-page link]

Emission Scenario Documents under preparation 
[in-page link]

Categories used in the OECD Emission Scenario Documents 
[in-page link]

 

 

What is an Emission Scenario Document?

Emission Scenario Documents (ESDs) describe the sources, production processes, pathways and use patterns. ESDs aim to quantify the emissions of a chemical into water, air, soil and/or solid waste.

An ideal ESD should include the following stages:

(1) production

(2) formulation

(3) industrial use

(4) professional use,

(5) private and consumer use

(6) service life of product/article

(7) recovery, and

(8) waste disposal (incineration, landfill)

 

ESDs are used in risk assessments of chemicals to establish the conditions on use and releases of the chemicals. These are then the bases for estimating the concentration of chemicals in the environment.

ESDs have been widely used in national and regional contexts. For example, European Chemicals Agency (ECHA)’s guidance document on environmental exposure estimation refers to existing ESDs developed by both OECD and the European Commission.

Other OECD member countries have developed their own ESDs and the USEPA has developed a number of generic scenarios to be used as default release scenarios in risk assessment.

The OECD Task Force on Exposure Assessment therefore develops ESDs in order to reflect conditions on production, use etc. that are different between countries, and so avoiding duplicative efforts by Member countries and industry.

Further information;

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How is an OECD ESD developed?

A project proposal specifying the industry categories and/or use categories from member countries is first submitted. Once approved by the Task Force on Exposure Assessment, the lead country drafts the document, which is then circulated to members of the Task Force for their comments. Taking the comments into account, the drafts are amended and published by the OECD.
 
Comments on published ESDs

Over 30 ESDs have so far been published under OECD Series on ESDs. Users are encouraged to provide comments and new or updated information regarding emission estimation of chemicals outlined in these published ESDs to the Secretariat. The OECD Task Force on Exposure Assessment reviews the comments received and considers the revision of ESDs.

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ESDs under preparation

The following ESDs are currently being developed or updated; (as of September 2013)

  • Formulation and Application of Thermal and Carbonless Copy Paper
  • Chemical Vapour Deposition in the Semiconductor Industry
  • Use of Adhesives
  • Textile Dyeing
  • Use of industrial cleaners
  • Case study on plastic additives (a complementing document to the existing ESD on Plastic Additives)
  • Metals from waste disposal
  • Application of Paint Solvent to industrial coating (a complementing document or revision of existing ESD 22 Coating Industry)
  • Wood preservatives (Revision of the ESD number 2 published in 2000)

 

Categories used in the OECD ESDs

The industry categories and/or use categories shown below have been applied for the development OECD ESDs.

Recently the European Chemicals Agency (ECHA) developed further detailed descriptors for describing the use pattern of chemicals, and the US and Canada have also developed harmonised use codes. The Task Force on Exposure Assessment has therefore developed mapping tables between the two sets of use descriptors.

 

Industry categories

 No.

categories 

 1

 Agricultural industry

 2

 Chemical industry (basic chemicals)

 3

 Chemical industry (chemicals used in synthesis)

 4

 Electrical/electronic industry

 5

 Personal/ Domestic

 6

 Public domain

 7

 Leather processing industry

 8

 Metal extraction, refining and processing industry

 9

 Mineral oil and fuel industry

 10

 Photographic industry

 11

 Polymers industry

 12

 Pulp Paper and board industry

 13

 Textile processing industry (e.g. Dyestuffs, flame retardants)

 14

 Paints, lacquers and varnishes industry

 16

 Engineering industry: civil and mechanical

 0

 Others

 

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Use Categories

 No.

categories 

 No.

 categories

 1

 Absorbents and Adsorbents

 29

 Heat transferring agents

 2

 Adhesive, binding agents

 30

 Hydraulic fluids and additives

 3

 Aerosol propellants

 31

 Impregnation agents

 4

 Anti-condensation agents

 32

 Insulating materials

 5

 Anti-freezing agents

 33

 Intermediates

 6

 Anti-set-off and anti-adhesive agents

 34

 Laboratory chemicals

 7

 Anti-static agents

 35

 Lubricants and additives

 8

 Bleaching agents

 36

 Non-agricultural pesticides

 9

 Cleaning/washing agents and disinfectants

 37

 Odour agents

 10

 Colouring agents

 38

 Oxidising agents

 11

 Complexing agents

 39

 pH-regulating agents

 12

 Conductive agents

 40

 Pesticides

 13

 Construction materials additives

 41

 Pharmaceuticals

 14

 Corrosion inhibitors

 42

 Photochemicals

 15

 Cosmetics

 43

 Process regulators

 16

 Dust binding agents

 44

 Reducing agents

 17

 Electroplating agents

 45

 Reprographic agents

 18

 Explosives

 46

 Semiconductors

 19

 Fertilisers

 47

 Softeners

 20

 Fillers

 48

 Solvents

 21

 Fixing agents

 49

 Stabilisers

 22

 Flame retardants and fire preventing agents

 50

 Surface-active agents

 23

 Flotation agents

 51

 Tanning agents

 24

 Flux agents for casting

 52

 Viscosity adjusters

 25

 Foaming agents

 53

 Vulcanising agents

 26

 Food/foodstuff additives

 54

 Welding and soldering agents

 27

 Fuel

 0

 Others

 28

 Fuel additives

   

 

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Permanent url: http://www.oecd.org/env/exposure/esd

 

Related Documents

 

Emission scenario document for wood preservatives

 

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