Table 7

Net atmospheric fluxes over different regions from various sources. Net deposition includes concentrations in both wet and dry deposition.

Atmospheric flux of metal (kg/ha/a)
AsNiCuCrZnSiteReference
3.6 × 10−5−1.4 × 10−41 × 10−4−6 × 10−4South Pacific OceanHalstead et al. (2000)
1.5 × 1023.9 × 1021.56 × 103Northern FranceAzimi et al. (2004)
1.2 × 10−5*1.9 × 10−5*SwitzerlandKrachler et al. (2003)
1.5 × 10−35.9 × 10−31.19 × 10−22.3 × 10−30.143Southern QuebecGelinas & Schmit (1998)
1.6 × 10−420Southern HemisphereWeiss et al. (1999)
  • * Holocene deposition rate (5320–8230 14C a bp).