From the time the murals were painted in the 1930s to 2009 , there had been no organized effort by authorities to conserve the murals painted here . The 1985 earthquake , humidity , the passage of time , the lack of maintenance and vandalism took their toll on the artwork . Almost all of the murals showed some level of damage with only the murals painted by Pablo O'Higgins at the entrance located at Del Carmen and Rodriguez Puebla were in good condition . This is primarily because these works were done on the ceiling and upper portions of high walls . One of the murals in the worst condition was '' Influencia de las vitaminas '' by Angel Bracho , with over 50 % of the surface area damaged , mostly by humidity . A wall that holds a work by Marion Greenwood is cracked , possibly due to the 1985 earthquake . The rest of the paintings are damaged by scratches , humidity and small cracks due to the same earthquake , with those at arms reach suffering from graffiti and other vandalism
1985 earthquake
1985 Mexico City earthquake
Abelardo L. Rodríguez Market