Mathematical Modeling for Water Quality Management under Interval and Fuzzy Uncertainties

Figure 2

BOD discharges from chemical plants. Note: the five chemical plants are abbreviated as their initials in this figure. GF: Gufu, 𝑖=1; BSH: Baishahe, 𝑖=2; PYK: Pingyikou, 𝑖=3; LCP: Liucaopo, 𝑖=4; XJLY: Xiangjinlianying, 𝑖=5.