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

Table 1

Water-absorbing mass (WAM) of SAP (0.3 g) at swelling equilibrium.

Mass concentration/(mg·L^−1)	Water-absorbing mass/g
	Atrazine	Alachlor	Tribenuron-methyl
0	67.27^a	67.27^a	67.27^a
0.5	63.55^ab	65.23^a	65.76^a
1.0	63.49^ab	66.19^a	66.04^a
2.0	60.79^b	65.66^a	65.55^a

Within the columns, values followed by the same letter are not significantly different at the 0.05 probability level.