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Table 2 The percentage distribution of the major elements in the EHC-93 Ottawa urban dust detected by energy dispersive X-ray spectroscopy

From: In vitro toxicoproteomic analysis of A549 human lung epithelial cells exposed to urban air particulate matter and its water-soluble and insoluble fractions

Element

Weight %

Atomic %

Na

6.99

9.96

Mg

2.72

3.66

Al

6.46

7.84

Si

23.17

27.04

S

11.41

11.66

Cl

7.74

7.16

K

3.70

3.10

Ca

31.89

26.08

Fe

5.94

3.49