Deteriorative effect of sulphur dioxide upon paper in an atmosphere of constant humidity and temperature

Uptake of Air Pollutants by Paper

“…The uptake of SO 2 on alkaline ligninfree (B) was also considerably greater in the presence of ozone. The SO 2 deposition rate on alkaline lignin-free paper at different relative humidities.a: Exposed to 107 ppb SO 2 ; b: exposed to 107 ppb SO 2 Fig. 5 shows the NO 2 deposition on different paper grades.…”

“…The effects of environmental pollution on the ageing stability of archival materials have been addressed in several investigations [1][2][3][4][5][6][7][8][9] . The studies have been focused mainly on the interaction between paper and sulfur dioxide, since this pollutant has been predominant from a historical point of view, due to the combustion of sulfur-containing fossil fuels.…”

A Pollution Chamber for the Accelerated Deterioration of Materials

“…Over the last 10 years, the French Centre for Research into the Conservation of Graphic Documents (CRCDG) has led research into the effect of SO 2 and NO 2 pollution under varying conditions of concentration, temperature and humidity. 1 · 2 One of the first investigations into the effect of pollutants on paper was carried out by Kimberley,3 who demonstrated that the exposure of paper at concentrations between 2 and 9 ppm over 10 days made the paper fragile and diminished its folding resistance. Shortly after, Jarell and coworkers 4 exposed papers to town gas containing 8 ppm SO 0 and found evidence of variations in the alpha-cellulose levels, the copper number and the resistance to folding and acidity.…”