Figure 4
The vertical axis is labeled “Toluene (micrograms per cubic meters)” and ranges from 0 to 4000 in increments of 500. The horizontal axis is labeled “Elapsed Time (Days)” and lists “negative 21 I W C A P A”, “negative 13 W C”, “negative 7 F C”, “0 F M”, “7”, “10”, “14”, “18”, “24”, “31”, “37”, and “50”. The tabulated bar values from left to right are as follows. Negative 21 I W C A P A: “Excellent”, 1290. “Good”, 1350. Negative 13 W C: “Excellent”, 2220. “Good”, 1820. Negative 7 F C: “Excellent”, 990. “Good”, 785. 0 F M: “Excellent”, 820. “Good”, 1950. 7: “Excellent”, 1900. “Good”, 3420. 10: “Excellent”, 470. “Good”, 1180. 14: “Excellent”, 1250. “Good”, 790. 18: “Excellent”, 120. “Good”, 230. 24: “Excellent”, 1100. “Good”, 1350. 31: “Excellent”, 115. “Good”, 225. 37: “Excellent”, 780. “Good”, 1450. 50: “Excellent”, 30. “Good”, 40.Average concentration of toluene in the eco-friendly material test units