Research Article

Prediction Model of Interval Grey Numbers with a Real Parameter and Its Application

Table 1

Concentration of DDT in atmosphere of a certain city in southern China (ng·m−3).

Time range (TR)Grey information

TR-1 (k = 1)[110.2, 140.4]
TR-2 (k = 2)[102.3, 133.5]
TR-3 (k = 3)[92.4, 128.8]
TR-4 (k = 4)[87.3, 121.8]
TR-5 (k = 5)[82.1, 117.3]
TR-6 (k = 6)[78.3, 115.3]
TR-7 (k = 7)[72.2, 110.3]
TR-8 (k = 8)73.2