Amendment of the Directive 2004/37/EC on the protection of workers from the risks related to exposure to carcinogens or mutagens at work

On the 28th of June the European Parliament and the Council of the European Union voted on the amendment of the Directive 2004/37/EC. The directive proposes to set exposure limits for a further 11 carcinogens in addition to those covered by the existing 2004 directive.

At the below mentioned table you may find the amended Annex III with the Limit values and other directly related provisions

CAS No ([1]) EC No ([2]) NAME OF AGENT LIMIT VALUES([3]) Notation([4]) Transitional measures
mg/m3 ([5]) ppm ([6]) f/ml([7])
Hardwood dusts 2 ([8]),


Limit value 3 mg/m3


Chromium (VI) compounds which are carcinogens within the meaning of Article 2 (a) (i) of the Directive

(as Chromium)

0,005 Limit value 0,010 mg/m3


Limit value: 0.025 mg/m3 for welding or plasma cutting processes or similar work processes that generate fume until


Refractory Ceramic Fibres

which are carcinogens within the meaning of Article 2 (a) (i) of the Directive

Respirable Crystalline Silica Dust 0,1 ([9])
71-43-2 200-753-7 Benzene 3,25 1 skin
75-01-4 200-831-0 Vinyl chloride monomer 2,6 1
75-21-8 200-849-9 Ethylene oxide 1,8 1 skin
75-56-9 200-879-2 1,2-Epoxypropane 2,4 1
79-06-1 201-173-7 Acrylamide 0,1 skin
79-46-9 201-209-1 2-Nitropropane 18 5
95-53-4 202-429-0 o-Toluidine 0,5 0,1 skin
106-99-0 203-450-8 1,3-Butadiene 2,2 1
302-01-2 206-114-9 Hydrazine 0,013 0,01 skin
593-60-2 209-800-6 Bromoethylene 4,4 1


[1]              CAS No: Chemical Abstract Service Registry Number.

[2]              EC No, i.e. EINECS, ELINCS or NLP, is the official number of the substance within the European Union, as defined in section in Annex VI, Part 1, of Regulation (EC) No 1272/2008.

[3]              Measured or calculated in relation to a reference period of eight hours.

[4]              Substantial contribution to the total body burden via dermal exposure possible.

[5]              mg/m3 = milligrams per cubic metre of air at 20°C and 101,3 kPa (760 mm mercury pressure).

[6]              ppm = parts per million by volume in air (ml/m3).

[7]              f/ml =  fibres per millilitre.

[8]              Inhalable fraction: if hardwood dusts are mixed with other wood dusts, the limit value shall apply to all wood dusts present in that mixture.

[9]               Respirable fraction.


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