Table 1: Heavy metal concentration μg g−1 and pH in roadside dust.

Soil locationpHPbFeZnNiCdCrCu

Benghazi Street6.672.1–5.642–4865–9632.5–39.139.1–49.536.7–46.841–60
Mean3.854580.534.646.945.353.6
Tripoli Street6.252.25–2.9230–4673–10733.5–42.839.8–51.245.3–52.435–59
Mean2.585389038.748.851.348.6
Airport Street6.552.8–3.720–2948–11626.4–30.825.1–33.830.4–39.821–45
Mean3.2524.58229.827.534.531.9
Sadon Swihli Street6.892.5–6.545–5365–13636.4–45.240.1–46.733.8–43.942–66
Mean4.549100.542.545.737.755.9
Qasr Ahmed Street6.904.03–6.6548–7255–14634.5–42.838.5–47.829.7–36.838–55
Mean5.3460100.537.244.131.351.5
Aljazera Street7.301.2–3.322–2842–9313.8–28.412.5–34.816.7–25.923–41
Mean2.252567.522.529.119.732.1