Characteristics of Water Pollution and Evaluation of Water Quality in Subsidence Water Bodies in Huainan Coal Mining Areas, China

Figure 5

The content of Cl⁻ (a) and F⁻ (b) at each sampling point in the Huainan coal mining subsidence water bodies. (The standard limits of Cl⁻ in the figure refer to the standard limits of supplementary items of centralized surface water sources for drinking water).

(a)

(b)