Research Article
Determination of Interesting Toxicological Elements in PM2.5 by Neutron and Photon Activation Analysis
Table 7
Levels (ng m−3) of selected elements investigated along four decades in downtown Rome.
| | PM10 | | 1965–78 | 1989–92 | 2000–02 |
| As | 4.00 | | 1.35 | Br | 70 | 50 | 22 | Cd | 0.751 | | 0.520 | Co | 0.498 | 0.523 | 0.379 | Cr | 16 | 2.3 | 7.28 | Hg | 0.131 | 0.092 | 1.07 | La | 2.04 | 0.803 | 0.188 | Ni | 8.01 | 1.72 | 4.54 | Pb | 270 | 172 | 92 | Sb | 1.99 | 2.13 | 9.22 | Se | 0.533 | 0.091 | 0.692 | Th | 0.911 | 0.723 | 0.229 | V | 14 | 4.82 | 4.02 | Zn | 190 | 28 | 80 |
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