Fig. 4

A Nero’s Temple and the contaminated water sources. Green, red and blue arrows refer to canal water, houses, and agricultural lands, respectively. B The preservation state of the temple in 1983. The Blue arrow refers to the near houses and the yellow arrow indicates the gathered water, from [43]. C–E The current state of preservation in 2022 for Nero’s Temple with its decayed and damaged elements due to salt weathering. Red rectangles refer to the degradation and deformation of the temple’s architectural and structural elements. The blue arrow refers to the houses near the temple