Quantitative Fractal Evaluation of Herbicide Effects on the Water-Absorbing Capacity of Superabsorbent Polymers

Figure 4

Hydrogel microtopography of SAP in 2 mg/L atrazine solutions.

(a) 10 min

(b) 40 min

(c) 70 min

(d) 100 min

(e) 150 min