Advances in Meteorology

Research Article

Morphological and Chemical Properties of Particulate Matter in the Dammam Metropolitan Region: Dhahran, Khobar, and Dammam, Saudi Arabia

Table 3

Trace metal levels in PM samples collected from Dhahran, Khobar, and Dammam.
ElementDhahran
(μg/L)		Khobar
(μg/L)		Dammam
(μg/L)
As<1 × 10−2<1 × 10−2<1 × 10−2
Ba5.118.9110.13
Cd<5 × 10−3<5 × 10−3<5 × 10−3
Co<1 × 10−3<1 × 10−3<2 × 10−3
Cr<6 × 10−2<7 × 10−2<6 × 10−2
Cu2 × 10−23 × 10−21 × 10−2
Mn6 × 10−211 × 10−21 × 10−2
Mo<3 × 10−3<3 × 10−3<5 × 10−3
Ni2 × 10−22 × 10−21 × 10−2
V5 × 10−27 × 10−26 × 10−2
Zn8.9812.648.87
Ti0.660.991.47
Se<1 × 10−2<1 × 10−2<4 × 10−3
PbNANA<1 × 10−3