Correction to: Environ Sci Pollut Res (2018) 25:15336–15348

https://doi.org/10.1007/s11356-018-1408-5

After publication of this study (Wang et al. 2018), we noticed a major mistake in the Fig. 7 that the Fig. 7a and the Fig. 7b were published with a same picture. The correct Fig. 7 was labeled here. We sincerely regret for the error, and sorry for the inconveniences!

Fig. 7
figure 1

SEM images of the phosphogypsum. Phosphogypsum before leaching (a), and after leaching (b) by simulated acid rain at pH 3.03