Morbid Fact Du Jour For March 8, 2012
Today’s Green Yet Truly Morbid Fact!
Scheele’s green was a beautiful green chemical named after Karl Scheele (1742-1786). Scheele’s green was colored by copper arsenite and was ideal for printing wallpapers, especially those with floral motifs. Wallpaper production rose steadily throughout the 1800s: in the UK it reached 1 million rolls a year in 1830 and 30 million rolls by 1870. When tests were then carried out it was found that four out of five wallpapers contained arsenic. Arsenic in wallpaper had a habit of diffusing into the air of a room and thereby affecting its occupants. This had been suspected as long ago as 1815, but the mechanism by which it occurred was not correctly deduced until the 1890s, and what exactly was being released was only solved in 1932.
In 1864 there were reports in the press of children actually dying as a result of the vapors given off by moldy green wallpaper, and the medical journal Lancet warned of the dangers of arsenic pigments. A typical wallpaper would contain around 700 mg/square meter so that an average-sized living room would hold around 30,000 mg of arsenic, in theory enough to kill more than a hundred people. Most of this arsenic would remain on the walls of the room unless they became damp. The nature of the aerial poison was unknown at the time but this did not stop concerned individuals launching campaigns against the use of arsenic-based pigments even though these flew in the face of most medical opinion which regarded arsenic as a potent medicine and good for treating all kinds of afflictions of the human body. In addition the general public had discovered that when arsenic-based papers were used on bedroom walls there was a noticeable disappearance of bed bugs, a major benefit that led to increased sales. Moreover, arsenic cigarettes were popular and reputed to cure nervous complaints, and arsenic-based cosmetics were supposedly good for the complexion. How could the tiny amount that was emitted by wallpapers be dangerous? It seemed illogical to claim otherwise, and so Scheele’s green continued to be used.
Culled from: The Elements of Murder
Hmmmmm… early death or bedbugs? You know, I think I’d go with the wallpaper too!
