Dq. Nam et al., DETERMINATION OF AIRBORNE LEAD AND CADMIUM COLLECTED ON GLASS-FIBER FILTERS BY DIFFERENTIAL-PULSE ANODIC-STRIPPING VOLTAMMETRY, Science of the total environment, 144, 1994, pp. 87-92
Differential-pulse anodic stripping voltammetry with a mercury microel
ectrode is used for the determination of lead and cadmium in airborne
particle matter from three sites representing different urban conditio
ns. Airborne metals collected on a large-area glass fibre filter using
a high-flow-rate pump are mineralised with nitric acid in autoclaves.
Results for lead and cadmium concentrations are reported. Lead shows
the highest concentrations at all sites (up to 2600 ng/m3). Traffic is
confirmed as the main source of this pollutant. The reliability of th
e method is tested by comparison with the results obtained with atomic
absorption spectrometry; the differences were within 5-30%.