More environmentally friendly alternatives to PFOS-compounds and PFOA

Appendix C Use of PFOS-related compounds in Denmark

In 2001/2002 a project funded by the Danish EPA was carried out in order to gain an overview of which types of products on the Danish market that may contain PFOS and PFOS-related compounds (Havelund, 2002). The project was a survey of PFOS and similar substances in consumer products.

The survey showed that 75 of the 175 identified PFOS-compounds on OECD's list were registered in the Danish Product Register. These 75 PFOS-compounds were from 17 of the total 22 different categories of PFOS-compounds (as described in the main report).

The search in the Danish Product Register showed that PFOS-compounds were most widespread in the following types of products:

  • Impregnation agents for textiles, leather and paper
  • Wax and other polishes
  • Paint, varnish and reprographic agents
  • Cleaning products
    - General cleaning products
    - Cleaning products used for cleaning of metal surfaces or carpets

As to products with small consumption, the following types of products are relevant:

  • Flame-retardants
  • Mould release agents

A total list of application areas for PFOS-related compounds according to the search in the Danish Product register can be found in Table 9.5 below.

The search in the Danish Product Register showed that the total registered sale in Denmark of PFOS-compounds contained in products is 8-16 tons per annum. Products for impregnating leather and paper as well as paint/varnishes and reprographic agents represent the largest amounts.

However, a search in the Danish Product Register is not necessarily complete with respect to products containing PFOS-compounds as the Danish Product Register only registers products that must be labelled as dangerous products. Most PFOS-compounds are not considered as dangerous substances. Products containing PFOS-compounds will, however, be registered if the products contain other substances, which contribute to the classification of the product as a dangerous substance.

In other words, the Danish Product Register does not register all products containing PFOS-compounds on the Danish market, and the registered amounts do not give an adequate picture of the total sales in Denmark. Finally, imported final products containing PFOS-compounds are not registered in the Product Register.

Therefore, a market survey was initiated in order to quantify the non-registered amount of PFOS-compounds in products. This survey concluded that the total Danish consumption of PFOS-compounds in products probably was between 5 to 50 tons per year.

The market survey carried out showed that in some areas substitutions of PFOS-compounds have been made, whereas the use of PFOS-compounds in other areas was unchanged (see Table 9.4 below).

Table 9.4: Use of PFOS-compounds for different products according to the Danish survey on PFOS-compounds in consumer products (Havelund, 2002).

Paint and varnish By- and large PFOS-compounds are not used any more (very modest amounts).
PFOS-compounds could occur in imported products.
Reprographic agents By- and large PFOS-compounds are not used any more (very modest amounts).
PFOS-compounds could occur in imported products.
Cleaning products PFOS-compounds are used more deliberately.
Cleaning products for industrial use A substantial amount has been substituted.
Polishers PFOS-compounds are used more deliberately.
However, according to a recent research on PFOS-compounds in wax and polish for floor, PFOS-compounds were found in some products, but the producers will remove the products containing PFOS-compounds from the market. (Vejrup et al, 2002)
Other product groups No market shift away from PFOS-compounds yet.

A more recent survey on PFOS-compounds in impregnating agents as well as wax and polish for floors showed that PFOS-compounds were found in 3 of 21 products. The PFOS-compounds were found in one impregnating agent for leather and textiles, in one impregnating agent for textiles and in one floor caring product with wax and polish. However, the producers stated, when contacted, that the products containing the PFOS-compounds either are or will be removed from the market. (Vejrup et al, 2002).

Furthermore, the survey showed that some of the problems in mapping the use of PFOS-compounds are:

  • Importers may not be aware that the products contain PFOS-compounds because it is confidential information, and the content is not mentioned in material safety data sheets.
  • PFOS-compounds may appear as contaminants or impurities in products containing fluoropolymers. For example, in products for impregnation PFOS-compounds may appear as impurities at the level of parts per million.

Table 9.5: List of products with PFOS-related compounds registered in the Danish Product Register (Havelund, 2002). The application areas are listed in descending order. The application area with the highest calculated content (in kilos) in the sold products listed first.

Product type
(as listed in the Danish Product Register)
Calculated content of PFOS-compounds in sold products (in kilos)
  Min. Max. In %
Impregnating products (for leather, paper, textiles, etc.)
- Impregnating products – for leather
- Impregnating products – for paper
- Impregnating products – for textiles
- Other impregnating products
4993.3
2427.1
2397.6
121.9
47.2
5135.8
2455.4
2422.6
207.6
50.2
31.8 – 58.0
15.2 - 28.2
15.0 - 27.9
1.3 - 1.4
0.3 - 0.5
Printing ink, toner and additives for printing ink 575.8 2032.1 6.7 – 12.6
Paint and varnish 963.3 2003.8 11.2 – 12.4
Detergents, surfactants, humidifiers, dispersing agents, emulsifying agents, antifoam agents, etc. 360.0 1565.6 4.2 - 9.7
Polish and caring products (polishing compounds, caring products for varnish and leather, shoe polish, furniture polish, wax and polish for floor treatment) 27.4 1401.6 0.3 - 8.7
Cleaning agents for removal, washing-up and cleaning (degreasers, domestic detergents, auto cleaners, window cleaning agents, graffiti removal, high pressure cleaners, lime removers, dishwasher detergents, stain removers, carpet cleaners, etc.) 724.7 1338.8 8.3 - 8.4
Electroplating / galvanizing products (for metal treatment) 320.7 566.7 3.5 - 3.7
Metal surface treatment products (pickling agents, rust-removing agents, etc.) 54.7 375.6 0.6 - 2.3
Inhibitors, adhesives 58.4 278.8 0.7 - 1.7
Different oils (hone oils, cutting oils) and other cooling lubricants 20,7 258.9 0.2 - 1.6
Process control agents (synthesis regulators) 34.5 431.4 0.4 - 2.7
Fire extinguishants 22.9 182.3 0.3 - 1.1
Developer / photo developer 13.8 172.6 0.2 - 1.1
Antirust agents 6.9 86.3 0.1 - 0.5
Fluxing agents (for plumbing) -55.6 55.2 -0.6 - 0.3
Colorants / pigments 49.6 50.2 0.3 - 0.6
Unknown function 53.5 49.4 0.3 - 0.6
Filling material (caulking compounds, sealing material, filling material, etc.) 38.7 42 0.3 - 0.5
Binding material / adhesive / paint binder 10.6 35.5 0.1 - 0.2
Material for isolation 33.4 32.3 0.2 - 0.4
Floor covering materials 21.6 25.6 0.2 - 0.3
Mould release agents / antitack agents 21.9 23.2 0.1 - 0.3
Hardening agents / curing agents (for paint, varnish and filling material) 17.9 19.5 0.1 - 0.2
Matting agents / products for changing brightness 12.4 12.5 0.08 - 0.1
Moulding material 12.2 11.1 0.07 - 0.1
Sensitizer for silk screen printing 10.6 9.7 0.06 - 0.1
Grease and lubricating oil 6.2 6.3 0.04 - 0.1
Flushing and rinsing agents for dental hygiene 6.2 6.3 0.04 - 0.1
Surface treatment agents for paper, paperboard and other non-metal products 3.7 6.0 0.04
Raw materials for synthesis (monomers) 0.1 5.9 0.001-0.04
Odorants / aroma / fragrance 1.5 2.4 0.01-0.02
Indication agents for cracks (pentrants, leakage detection agents) 0.1 0.1 0.001
Thinner / paint thinner -66.8 -66.8 -0.8 - -0.4
Total sum 8604.1 16156.3  

Please notice that for some product groups the calculated content of PFOS-compounds is negative in Table 9.5. The numbers are taken directly from the reference (Havelund, 2002), where there is no explanation for the negative numbers.

 



Version 1.0 June 2005, © Danish Environmental Protection Agency