Table 1. Descriptive analyses of fine particles (PM_2.5), ambient temperature and relative humidity during harvest and non-harvest periods at the sugarcane field.

Variables	Harvest	Non-harvest	p-valuea
	Median (IQRb)	Median (IQR)
PM2.5 (µg/m3)	87.0(70.0–100,0)	50.0(40.5–61.5)	<0.001
Ambient Temperature (°C)	28.1(25.6–33.0)	28.2(25.6–31.8)	0.500
Relative Humidity (%)	49.0(40.0–59.0)	65.0(61.0–72.8)	<0.001

^a: Mann-Whitney test;

^b: interquartile range.