Table 3 Mean elemental concentrations (ng.m -3 ) for Bamako and Dakar samples
Sites | BK1 | BK2 | DK | ||||||
|---|---|---|---|---|---|---|---|---|---|
Elements | UF | F | C | UF | F | C | UF | F | C |
Ca | 3.8 | 107.5 | 1935.7 | 17.7 | 116.7 | 964.2 | 8.8 | 72.3 | 1397.0 |
Na | 8.9 | 69.9 | 735.0 | 9.1 | 35.9 | 155.6 | 48.4 | 104.9 | 1950.0 |
K | 190.7 | 543.1 | 1627.9 | 178.8 | 391.2 | 381.0 | 95.8 | 151.2 | 264.7 |
Mg | 1.8 | 80.9 | 873.6 | 5.8 | 42.7 | 233.5 | 1.4 | 19.1 | 390.2 |
Al | 388.6 | 553.1 | 6374.0 | 88.1 | 521.3 | 1865.4 | 267.3 | 76.9 | 858.0 |
Fe | 17.1 | 272.3 | 3859.4 | 31.3 | 193.9 | 1750.8 | 11.4 | 59.4 | 806.7 |
Si | 792.8 | 1128.3 | 13002.9 | 179.6 | 1063.4 | 3805.5 | 545.4 | 156.8 | 1750.3 |
As | 0.2 | 0.2 | 2.4 | 0.3 | 0.3 | 0.5 | 1.4 | 2.0 | 1.2 |
Ti | 8.5 | 28.9 | 279.2 | 4.5 | 22.6 | 105.9 | 4.6 | 7.1 | 60.1 |
Zn | 4.0 | 9.7 | 23.6 | 2.8 | 7.8 | 15.8 | 8.7 | 14.5 | 19.0 |
Ni | 2.2 | 2.0 | 9.3 | 0.5 | 1.2 | 2.3 | 2.1 | 7.8 | 2.5 |
P | 1.1 | 7.5 | 98.0 | 1.7 | 12.5 | 71.7 | 62.5 | 26.8 | 90.9 |
Pb | 1.3 | 4.4 | 7.6 | 1.2 | 3.4 | 5.2 | 1.6 | 2.8 | 4.6 |
B | 14.1 | 18.0 | 46.2 | 12.1 | 27.6 | 27.6 | 6.8 | 8.7 | 11.3 |
Mn | 0.9 | 6.9 | 54.7 | 0.7 | 4.0 | 21.7 | 7.3 | 5.8 | 12.8 |
Sn | 0.0 | 0.0 | 1.0 | 0.3 | 0.6 | 2.0 | 16.0 | 2.6 | 2.1 |
Cu | 0.3 | 1.0 | 7.4 | 0.3 | 1.0 | 3.4 | 0.8 | 5.0 | 12.7 |
V | 0.0 | 0.8 | 8.3 | 0.1 | 0.5 | 3.3 | 5.1 | 20.1 | 5.2 |