NCPTT

Phase 3 research interpreted test results, and developed a test protocol for analyzed coatings for treatments.

Phase 1 of this project used electrochemical characterization methods to evaluate coatings’ corrosion protective performance under conditions that directly emulated exposure to polluted atmospheres.

The objectives of this grant were to determine the responses of the microflora to contamination of historic limestone materials with atmospheric pollutants. We also studied the effects of these interactions on the deterioration of the materials.

Numerous studies have shown that air pollutants can cause deterioration of sensitive materials. This problem is particularly important for buildings and monuments, where materials are chosen for structural support as well as for their aesthetic value.

The analyses reported here indicate that the IUAM paintings have not been damaged by reaction with DEAE.

The CCI work is being carried out in two phases, with Phase 1 to establish appropriate analytical procedures for determining the presence and effects of DEAE on paintings, and Phase 2 to analyze the effects of DEAE and conservation treatments on DEAE contaminated paintings.

The role of air pollutants in the soiling of a limestone building was investigated by measuring pollutant airborne concentrations and deposition at different heights at the Cathedral of Learning in Pittsburgh, Pennsylvania.

Air pollution has been responsible for increasing the rate of deterioration of many historically and culturally valuable monuments.