Which of the following conditions could worsen efflorescence on masonry walls?

Efflorescence on masonry walls occurs when moisture inside the masonry dissolves soluble salts and brings them to the surface as it evaporates. Increased moisture in the environment is a significant factor that can exacerbate this process. When the humidity levels are high or there is excess moisture in the air, it raises the water content in the masonry itself. This additional moisture can lead to more significant leaching of salts as compared to dryer conditions. Consequently, the presence of increased moisture can facilitate the movement of water and salts to the surface, creating a more pronounced efflorescence effect. Thus, understanding the relationship between environmental moisture and efflorescence is crucial for masonry maintenance and prevention strategies.