Navigation Links
Colorful wall hangings contain toxic substances

Traditional Swedish bonad paintings can contain toxic substances such as arsenic, reveals new research from the University of Gothenburg, Sweden, in which painting conservator and conservation scientist Ingalill Nystrm analysed the paint and techniques used in the traditional painted wall hangings from southern Sweden. Previous research into bonad painting has always originated in the humanities, from an art/cultural history perspective.

Bonad paintings are painted wall hangings that tell a story, often with a biblical theme, and were put up in farmhouses on special occasions such as Christmas. However, there has, to date, been little information available about the paint and materials used.

"It's important to know about the materials used in these wall-hangings so that we can preserve them," says Ingalill Nystrm from the University of Gothenburg's Department of Conservation. "We need to know whether they run the risk of being bleached or broken down by different kinds of exposure, treatment or conservation method. It's also important for the people who handle them to know whether any of the substances in them could be harmful or toxic."

Several toxic pigments have been found in the wall hangings studied, including orpiment and emerald green, which contain arsenic. Orpiment was very common in yellow pigment in painted wall hangings throughout the 18th century and well into the 19th century too. Emerald green appears in some 19th century wall hangings.

"So it's important to be careful when handling them. Several of the pigments and dyes are also sensitive to light, and the binding agent in the hangings is sensitive to damp and moisture."

Ingalill Nystrm's thesis is the first of its kind. Previous research into bonad painting has always originated in the humanities, from an art/cultural history perspective.

Her aim was to investigate the technology, materials and painting techniques used in the wall hangings.

"The quality and characteristics of the materials used can play a role in both these paintings' technical opportunities and their limitations. In my book I describe the various raw materials, approaches, potential painting tools and other aids that could have been used," says Ingalill Nystrm.

She also discusses how the paints may have been mixed and applied to the wall hangings.

Ingalill Nystrm's work is a cross-disciplinary study that combines art technological source research with spectroscopic analysis methods. She has examined more than 70 bonad paintings originating from southern Sweden between 1700 and 1870, and also 700 paint samples.

The materials used often comprised paint made with cheap pigments mixed up with egg and sometimes a touch of flour. The paint was generally applied to recycled linen, which had been primed with flour glue. Typically, templates were used for the figures in the scenes depicted.


Contact: Ingalill Nystrm
University of Gothenburg

Related biology news :

1. 9 colorful and endangered tree-dwelling tarantulas discovered in Brazil
2. Updated DHS report on risks of proposed Kansas biocontainment lab
3. Paints and coatings containing bactericidal agent nanoparticles combat marine fouling
4. Geologists testing aquifer rocks as containers to permanently trap carbon dioxide
5. Air in expectant moms homes contains pesticides, border study finds
6. Pioneering self-contained smart village offers world model for rural poverty relief
7. Effects of environmental toxicants reach down through generations
8. A toxic menu
9. Dip chip technology tests toxicity on the go
10. Using graphene, scientists develop a less toxic way to rust-proof steel
11. Boosting blood system protein complex protects against radiation toxicity
Post Your Comments:
(Date:11/4/2015)... ALBANY, New York , November 4, 2015 /PRNewswire/ ... According to a new market report published by Transparency ... Size, Share, Growth, Trends and Forecast 2015 - 2022", ... value of US$ 30.3 bn by 2022. The market ... during the forecast period from 2015 to 2022. Rising ...
(Date:10/29/2015)... LA JOLLA, Calif. , Oct. 29, 2015 /PRNewswire-USNewswire/ ... released a new report titled, "DNA Synthesis and Biosecurity: ... how well the Department of Health and Human Services ... was issued in 2010. --> ... advances, but it also has the potential to pose ...
(Date:10/29/2015)... health pioneer, Joseph C. Kvedar , MD, describes ... wellness, and the business opportunities that arise from it ... Healthy Things . Long before health and wellness ... vice president, Connected Health, Partners HealthCare, was creating a ... the hospital or doctor,s office into the day-to-day lives ...
Breaking Biology News(10 mins):
(Date:11/26/2015)... MUMBAI , November 26, 2015 ... --> Accutest Research ... accredited Contract Research Organization (CRO), has ... Chase Cancer Center - Temple Health ... ,     (Photo: ) ...
(Date:11/25/2015)... Md. , Nov. 25, 2015  PharmAthene, Inc. ... Directors has adopted a stockholder rights plan (Rights Plan) ... net operating loss carryforwards (NOLs) under Section 382 of ... --> PharmAthene,s use of its NOLs ... "ownership change" as defined in Section 382 of the ...
(Date:11/25/2015)... LOS ANGELES and HOLLISTON, Mass. ... Regenerative Technology, Inc. (Nasdaq: HART ), a biotechnology ... announced that CEO Jim McGorry will present ... Tuesday, December 1, 2015 at 2:30 p.m. PT. The ... (link below) for 30 days. Management will also be ...
(Date:11/25/2015)... ... 25, 2015 , ... A long-standing partnership between the Academy ... been formalized with the signing of a Memorandum of Understanding. , AMA Executive ... Karl Minter and Capt. Albert Glenn Tuesday, November 24, 2015, at AMA Headquarters ...
Breaking Biology Technology: