Suspended Particulates Concentration (PM₁₀) under Unstable Atmospheric Conditions over Subtropical Urban Area (Qena, Egypt)

Table 4

Correlation coefficients (𝑅) between PM₁₀ and weather elements for each month, cold season, hot season, and all observations during the period (2002-03). Multiple correlation and 𝐹-statistics values.

Period		𝑅		Multiple 𝑅	𝐹-statistics
	𝑇	Rh	WS
Jan.	−0.11	0.24	0.13	0.32	1.05
Feb.	0.23	0.32	−0.21	0.44	0.95
Apr.	0.37	0.12	−0.02	0.47	3.62*
May	−0.31	0.32	0.10	0.34	0.92
Jul.	−0.03	−0.18	−0.14	0.21	0.37
Aug.	−0.14	0.07	0.00	0.15	0.24
Sep.	−0.27	0.02	−0.16	0.33	1.19
Oct.	−0.03	0.32	−0.24	0.40	1.85
Nov.	−0.01	0.05	0.01	0.05	0.02
Dec.	−0.11	0.15	−0.26	0.32	0.34
cold season	−0.02	0.12	0.07	0.21	1.28
hot season	0.09	0.14	−0.05	0.19	2.55*
all data	0.16	0.04	0.00	0.33	8.94**

∗Significance level (significance 𝐹 at confidence level 99%).