Pesticide Concentrations in Vacuum Dust from Farm Homes: Variation between Planting and Nonplanting Seasons

Table 5

Atrazine concentrations in dust samples by location within the homes and season in nanograms per square centimeter (ng/cm²).

Location	Planting		Nonplanting
	GM (GSD)	Range	GM (GSD)	Range
Entryway	0.40 (21.0)^a	0.002–87	0.015 (16.4)^c,d	4.7E-5-5
Living Room	0.033 (14)^c	4.4E-5-8	0.003 (11.3)^e	6.2E-6-0.4
Master Bedroom	0.045 (7.1)^b, c	0.002–3	0.003 (10.3) ^e	6.1E-5-1
Kitchen	0.14 (17.7)^a, b	0.002–652	0.008 (37)^d,e	4E-6-63
House Avg.	0.09 (8.6)	0.002–652	0.006 (11.0)	4E-6-63

^{a, b, c, d,e}Geometric means with the same letter are not significantly different from each other based on 𝑃value < 0.05 obtained from ANOVA Duncan’s Multiple Range Test.