Table 3. The estimated AIC values for the probability models using the PM2.5 level data from Mae Hong Son and Lampang provinces.

Distributions	Mae Hong Son province	Lampang province
Normal	2,031.7990	1,876.4660
Log-normal	1,818.1560	1,787.6230
Weibull	1,836.4100	1,802.0070
Gamma	1,836.9690	1,795.2050
Exponential	1,834.9720	1,836.3210
Cauchy	1,946.9400	1,910.7870
Birnbaum-Saunders	1,812.9130	1,782.0890

Note:

Bold font means the distribution with the lowest AIC value.