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List of undesirable substances 2000

4. Changes

This section briefly reviews the substances that have either been deleted from or added to this revised edition of the List of Undesirable Substances, in relation to the first, 1998 edition.

4.1 Substances deleted from LOUS

Reasons

Substances are mainly deleted from the LOUS for one or more of the following four reasons.

	In the first place, deletion can be the result of new information obtained from Department of Data on Chemical Products, National Working Environment Authority (the Product Register Department (National Institute of Occupational Health, Denmark)). Consumption can have dropped since 1997, so that the total consumption is now less than 100 tonnes annually. If the use of a chemical substance drops to below an annual 100 tonnes, however, that substance will still be listed on the List of Effects. Deletion can also result from new information from the National Working Environment Authority, which shows that a substance or substance group is not used in the pure form. In other words, the substance is only included in other chemical substances as an impurity.
	In the second place, the industry or manufacturers have obtained documentation and test results, which show that a substance that was earlier selected on the basis of QSAR calculations does not, in fact, have the expected harmful effects on the aquatic environment.
	The third reason is that the use of a substance or substance group has been regulated in law, thereby reducing the risk in the use phase.
	Finally, a substance or substance group can be deleted from the LOUS because new, improved QSAR models show that the substance does not, in fact, have the undesirable environmental effects found by earlier models.

The following substances or substance groups have been deleted since publication of the 1998 List. It is important to note that, unless a substance was dropped due to new test results or QSAR calculations, it can still be problematical. For instance, substances deleted from the LOUS because they are no longer used in quantities of over 100 tonnes/year are still problematical. They will, therefore, still be included on the List of Effects.

C.I. pigment red 88 (CAS No. 14295-43-3) has been deleted because consumption in Denmark has fallen below 100 tonnes/year.

4,4'-diaminophenylmethane (CAS No. 101-77-9). No longer listed separately as it is not used in quantities of over 100 tonnes/year. On the other hand, this substance can be split from certain azo dyes for which reason, it in included on the List of carcinogenic arylamines.

Diethylenetriamine (CAS No. 111-40-0) has been deleted because consumption in Denmark has fallen below 100 tonnes/year.

Ethylglycolacetate (CAS No. 111-15-9) has been deleted because consumption in Denmark has fallen below 100 tonnes/year.

Colophony (rosin after removal of crude turpentine) (only the fractions with CAS Nos. 8052-10-6 and 73138-82-6) have been deleted because consumption in Denmark has fallen below 100 tonnes/year.

Methylglycol (CAS No. 109-86-4) has been deleted because consumption in Denmark has fallen below 100 tonnes/year.

Petroleum (only the one fraction, with CAS No. 8002-05-9) has been deleted because consumption in Denmark has fallen below 100 tonnes/year.

Vaseline (CAS No. 8009-03-8) has been deleted because consumption in Denmark has fallen below 100 tonnes/year.

PAHs have been deleted because by far the greater part occurs as impurities in oil derivatives. In other words, PAHs are not actively added to products, but can only occur in them as impurities.

Butane (CAS No. 106-97-8) has been deleted because the fractions that contain butadiene in concentrations of 0.1% or above are prohibited (cf. the Statutory Order on restricting the sale and use of certain dangerous chemical substances and products for specially stated reasons, Danish EPA Statutory Order No. 1042, of 17 December 1997). An investigation carried out by the Chemical Inspection Service showed that products that contained impurities in the form of benzene had benzene contents of far below the permissible concentration. A maximum of 1% benzene is permitted as an impurity in petrol.

Substances deleted because of new documentation

C. I. pigment blue 60 (CAS No. 81-77-6) has been deleted because new test results from the manufacturers have shown that the substance does not have long-term effects on the aquatic environment.

C. I. pigment yellow 13 (CAS No. 5102-83-0) has been deleted because new test results from the manufacturers have shown that the substance does not have long-term effects on the aquatic environment.

Arsenic and arsenic compounds have been deleted because their use is regulated and restricted by the Statutory Order on restricting the sale and use of certain dangerous chemical substances and products for specially stated reasons, Danish EPA Statutory Order No. 1042, of 17 December 1997).

Hexachloroethane (CAS No. 67-72-1) has been deleted because its use is regulated and restricted by the Statutory Order on restricting the sale and use of certain dangerous chemical substances and products for specially stated reasons, Danish EPA Statutory Order No. 1042, of 17 December 1997).

2,2'-[methylenebis(2,1-phenyleneoxymethylene)]bis- (CAS No. 54208-63-8) has been deleted because new and improved QSAR calculations have shown that the substance is in all probability not bioaccumulable.

4.2 New substances on LOUS

As was mentioned above, a number of new substances have been added to this revised edition of the List of Undesirable Substances. The reasons for which these substances were selected for the LOUS can be found in the individual substances' or substance groups' data sheets in Section 5.

The following brief overview shows which new substances have been added to the LOUS.

Table 4.1

New substances or substance groups on the List of Undesirable Substances.

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