Registration Dossier
Registration Dossier
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EC number: 266-024-0 | CAS number: 65996-89-6 The condensation product obtained by cooling, to approximately ambient temperature, the gas evolved in the high temperature (greater than 700°C (1292°F)) destructive distillation of coal. A black viscous liquid denser than water. Composed primarily of a complex mixture of condensed ring aromatic hydrocarbons. May contain minor amounts of phenolic compounds and aromatic nitrogen bases.
Phototransformation in air
Administrative data
- Endpoint:
- phototransformation in air
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Comprehensive peer-reviewed expertise / summary and status report
Data source
Referenceopen allclose all
- Reference Type:
- review article or handbook
- Title:
- Ambient Air Pollution by Polycyclic Aromatic Hydrocarbons (PAH) - Position Paper
- Author:
- EC
- Year:
- 2 001
- Bibliographic source:
- European Commission, Working Group on Polycyclic Aromatic Hydrocarbons, 27 July, 2001
- Report date:
- 2001
- Reference Type:
- review article or handbook
- Title:
- Unnamed
- Year:
- 2 008
Materials and methods
Test guideline
- Qualifier:
- no guideline required
- Principles of method if other than guideline:
- Experimental and estimated data
- GLP compliance:
- no
Test material
- Reference substance name:
- polycyclic aromatic hydrocarbons (PAH)
- IUPAC Name:
- polycyclic aromatic hydrocarbons (PAH)
- Details on test material:
- - Name of test material (as cited in study report): 16 EPA Priority PAH (see results tables below)- Substance type: organic
Constituent 1
Study design
- Light source:
- not specified
- Details on light source:
- not applicable
Results and discussion
Any other information on results incl. tables
A. Summary of gas-particle phase partitioning
(EC 2001, cited from EU 2008: Risk Assessment Report on Coal-Tar Pitch, Tab. 3.19)
PAH (number of rings) |
Vapour pressure [Pa] (a) |
Observed % in particulate phase (b) (c) (d) (e) |
|||
Naphthalene (2) |
1.1 x 101 |
0% |
0% |
||
Acenaphthylene (3) |
1.3 x 10-1 |
||||
Acenaphthene (3) |
4.0 x 10-1 |
||||
Fluorene (3) |
1.1 x 10-1 |
0% |
|||
Anthracene (3) |
8.7 x 10-4 |
3% |
0.5% |
||
Phenanthrene (3) |
2.0 x 10-2 |
3 % |
12.4 % |
1.9 % |
0.4 % |
Fluoranthene (4) |
6 x 10-3 |
54 % |
49.7 % |
19.1 % |
5.9 % |
Pyrene (4) |
4.4 x 10-4 |
57 % |
61.4 % |
29.6 % |
7.5 % |
Benzo(a)anthracene (4) |
2.1 x 10-6 |
97 % |
89.4% |
62.7 % |
|
Chrysene (4) |
1.4 x 10-6 |
99% |
|||
Benzo(b)fluoranthene(5) |
1.0 x 10-6 |
100 % |
92.2 % |
92.3 % |
|
Benzo(a)pyrene (5) |
5.3 x 10-8 |
100 % |
100% |
100% |
98.3 % |
Perylene (5) |
1.8 x 10-8 |
100 % |
90.0 % |
||
Dibenzo[ac]anthracene (5) |
5.7 x 10-9 |
100 % |
|||
Dibenzo(a,h)anthracene (5) |
4.9 x 10-9 |
100 % |
100 % |
100 % |
|
Benzo(ghi)perylene (6) |
1.0 x 10-8 |
100 % |
100 % |
100 % |
|
Notes (a) Vapour pressures taken from Neiderfellneret al. (1997) and Oja and Suuberg (1998). (b) Measurements made in Oslo, January/February 1979 (Thrane and Mikalsen, 1981). (c) Annual mean measurements made in Bayreuth, Germany, May 1995-April 1996 (Horstmann and McLachlan, 1998). (d) Summer mean measurements made in Bayreuth, Germany, May-October 1995 (Horstmann and McLachlan, 1998). (e) Measurements made in Torrance, California, February 1986 (Areyet al., 1987) (References see EC 2001) |
|||||
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B. Representative lifetimes of some 2- to 4-ring PAHs with respect to gas-phase reaction with
hydroxyl (OH) radicals, nitrate (NO3) radicals and ozone (O3)
(EC 2001, cited from NL 2008: Risk Assessment Report on Coal-Tar Pitch, Tab. 3.20)
PAH (number of rings) |
Representative lifetime with respect to reaction with |
|||
OH (a,b) |
NO3(a,c) |
O3(a,d) |
||
Summer |
Winter |
|||
Naphthalene (2) |
12 hours |
2.7 days |
6.0 years |
> 80 days |
Acenaphthylene (3) |
2.6 hours |
13 hours |
24 minutes |
43 minutes |
Acenaphthene (3) |
3.5 hours |
18 hours |
4.8 hours |
> 30 days |
Fluorene (3) |
1.8 days |
9 days |
||
Anthracene (3) |
2.1 hours |
10 hours |
||
Phenanthrene (3 |
9.0 hours |
1.9 days |
||
Fluoranthene (4) |
5.6 hours |
1.2 days |
340 days |
|
Pyrene (4) |
5.6 hours |
1.2 days |
120 days |
|
Notes (a) Lifetimes calculated using rate coefficients summarised by Atkinson and Arey (1994) and Brubaker and Hites (1998). (b) 24 hour-average summer and winter OH concentrations of 1 x 106 molecule cm-3 (0.04 pptv) and 2 x 105 molecule cm-3 (0.008 pptv) assumed for boundary layer UK (Collins et al., 1995). (c) 24 hour-average NO3 concentration of 1.2 x 108molecule cm-3 (5 pptv) assumed for boundary layer UK based on typical night-time values (Carslawet al., 1997). Note that the NO3concentration is very variable and may be significantly suppressed under polluted conditions. The reaction also requires the presence of NO2, which is assumed to be present at a concentration of 2.5 x 1011 molecule cm-3(10 ppbv), based on the average southern UK level (PORG, 1997). (d) Typical UK background O3concentration of 7.5 x 1011 molecule cm-3 (30 ppbv) assumed (PORG 1997). (For references see EC, 2001) |
||||
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C. Selected reaction rate constants for reaction with atmospheric OH radicals molecule (cm3.molecule-1.s-1).
(cited from NL 2008: Risk Assessment Report on Coal-Tar Pitch, Tab. 3.21)
No |
PAH compound |
KOH |
Ref2) |
1 |
Naphthalene |
2.16.10-11 |
1 |
2 |
Acenaphthene1) |
1.00.10-10 |
1 |
3 |
Acenaphthylene |
4.20.10-9 |
1 |
4 |
Fluorene |
1.30.10-11 |
1 |
5 |
Anthracene |
1.30.10-10 |
1 |
6 |
Phenanthrene |
3.10.10-11 |
1 |
7 |
Fluoranthene |
5.00.10-11 |
1 |
8 |
Pyrene |
5.00.10-11 |
1 |
9 |
Benzo(a)anthracene |
1.22.10-10 |
2 |
10 |
Chrysene |
8.00.10-11 |
3 |
11 |
Benzo(a)pyrene |
5.00.10-11 |
3 |
12 |
Benzo(b)fluoranthene |
1.86.10-11 |
3 |
13 |
Benzo(k)fluoranthene |
5.36.10-11 |
3 |
14 |
Benzo(ghi)perylene |
8.69.10-11 |
3 |
15 |
Dibenzo(a,h)anthracene |
5.00.10-11 |
3 |
16 |
Indeno(1,2,3-cd)pyrene |
6.46.10-11 |
3 |
1) The reaction rate is recalculated, so it matches the reaction rate constant for reaction with NO3 radicals
(see Table 3.23)
2) 1: (EC, 2001); 2: Slooff et al.(1989); 3: SRC (2004)
-- Slooff W, Janus JA, Matthijsen AJCM, Montizaan GK, Ros JPM (1989): Integrated Criteria Document PAHs.
RIVM report nr. 758474011. National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands.
-- SRC (2004). Interactive PhysProp Database at URL: Demo http://www.syrres.com/esc/physdemo.htm.
Syracuse Research Corporation (SRC).
--------------------------------------------------------------------------
D. Representative lifetimes of some surface-adsorbed PAHs with respect to photolysis under conditions
representative of a cloudless sky over the southern UK. The group classifications refer to fly ash of
different compositions, as defined by Behymer and Hites 1988 (EC 2001)
(EC 2001, cited from NL 2008: Risk Assessment Report on Coal-Tar Pitch, Tab. 3.22)
PAH (number of rings) |
Classification of ash (a) |
|||||||
“White group” |
“Red group” |
“Grey group” |
“Black group” |
|||||
Summer |
Winter |
Summer |
Winter |
Summer |
Winter |
Summer |
Winter |
|
Fluoranthene (4) |
7.7 hr |
23 hr |
1.5 day |
4.5 day |
1.9 day |
5.7 day |
1.2 day |
3.6 day |
Pyrene (4) |
3.7 hr |
11 hr |
17 hr |
2.1 day |
1.6 day |
4.8 day |
1.1 day |
3.3 day |
Benzo(a)anthracene (4) |
15 min |
45 min |
6.6 hr |
20 hr |
17 hr |
2.1 day |
1.1 day |
3.3 day |
Chrysene (4) |
10 hr |
1.3 day |
2.6 day |
7.8 day |
2.3 day |
6.9 day |
1.0 day |
3.0 day |
Benzo(a)pyrene (5) |
15 min |
45 min |
8.0 hr |
1.0 day |
18 hr |
2.3 day |
20 hr |
2.5 day |
Perylene (5) |
24 min |
1.2 hr |
7.0 hr |
21 hr |
18 hr |
2.3 day |
21 hr |
2.6day |
Benzo(ghi)perylene (6) |
1.9 hr |
5.7 hr |
2.0 day |
6.0 day |
2.5 day |
7.5 day |
23 hr |
2.9 day |
Notes (a) The classification of the ash into four groups depends on the relative contents of 10 elements, which influences the colour of the substrate (Behymer and Hites, 1988). The photolysis lifetimes measured in that study have been scaled to provide values representative of 24-hour averaged conditions in the boundary layer over the southern UK. Reference: Behymer TD, Hites RA (1988) Photolysis of polycyclic aromatic hydrocarbons adsorbed on fly ash.Environ. Sc. Tech.,22, 1311-1319 |
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Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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