Determination of Lead, Cations, and Anions Concentration in Indoor and Outdoor Air at the Primary Schools in Kuala Lumpur

Table 2

Concentration of Pb for both indoor and outdoor air according to sampling stations.

Sampling station	Concentration of Pb (μg/g)
	Indoor air	Outdoor air
A	6.05 ± 1.14	3.90 ± 1.04
B	6.01 ± 0.62	3.25 ± 0.35
C	7.01 ± 0.08	3.53 ± 0.05
D	5.64 ± 0.09	4.09 ± 0.71
E	5.18 ± 1.08	3.33 ± 0.08
F	8.15 ± 0.52	3.99 ± 1.15