A Caltech Library Service

Fading of artists' pigments due to atmospheric ozone

Drisko, Kaitlin and Cass, Glen R. and Whitmore, Paul M. and Druzik, James R. (1985) Fading of artists' pigments due to atmospheric ozone. Wiener Berichte über Naturwissenschaft in der Kunst, 2-3 . pp. 66-89.

PDF - Submitted Version
See Usage Policy.


Use this Persistent URL to link to this item:


Recently, it has been shown that several artists' pigments will fade in the absence of light if exposed to atmospheric ozone at the levels found in Los Angeles photochemical smog. In the present study, a large number of artists' organic watercolors have been examined to further assess the scope of this fading hazard to works of art. Twenty-seven organic watercolors were exposed to 0.31 ± 0.12 ppm 0_3 at 46 ± 6% relative humidity for 90 days. It was found that all of the watercolors containing alizarin derived pigments (1, 2-dihydroxyanthraquinone lakes) are susceptible to fading in the presence of ozone. A number of pigment blends containing at least one ozone fugitive chemical component were found to change their apparent color after exposure to ozone. Several organic red pigments that are much more ozone resistant than the alizarin lakes, including quinacridone reds and BON arylamide reds were identified. This information may aid artists in selecting more durable substitutes for the ozone fugitive alizarin lakes.

Item Type:Article
Additional Information:© 1985 Hochschule für Angewandte Kunst in Wien. This work was supported by the Mellon Foundation and by Caltech's Summer Undergraduate Research Fellowship program. Research continues under a contract with the J. Paul Getty Conservation Institute.
Group:Environmental Quality Laboratory
Funding AgencyGrant Number
Andrew W. Mellon FoundationUNSPECIFIED
Caltech Summer Undergraduate Research Fellowship (SURF)UNSPECIFIED
J. Paul Getty Conservation InstituteUNSPECIFIED
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Environmental Quality LaboratoryA-189
Record Number:CaltechAUTHORS:20140916-113254563
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49742
Deposited On:16 Sep 2014 19:31
Last Modified:03 Oct 2019 07:16

Repository Staff Only: item control page