Linking Measure of the Tropical Stingless Bee (Apidae, Meliponini, and Heterotrigona itama) Honey Quality with Hives Distance to the Source of Heavy Metal Pollution in Urban and Industrial Areas in Sabah, Borneo

Table 3

Contribution of different environmental variables to the two factor scores in the PCA analysis.

Variable	Weighting
	Factor 1	Factor 2
Type of vegetation	0.61	0.55
Temperature	0.46	0.85
Relative hHumidity	−0.033	0.85
Distance of hives from the main road	0.78	0.41
Distance of hives from the factory	0.97	0.21
Distance of hives from the coal power plant	0.99	0.06
Distance of hives from the town	0.84	−0.06

Note. Variables contributing most to each principal component (>0.60) are highlighted in bold.