The determination of cadmium, copper and lead in ambient air particulates in Singapore

Between October 1986 and September 1987, 540 samples were collected at seven locations throughout Singapore for a study of heavy metal composition in ambient air particulates. The samples were analysed for cadmium, copper and lead using an automated anodic stripping voltammetry (ASV) technique with flow injection system. The reliabililty and suitability of the automated ASV technique is evaluated and compared with established atomic absorption spectrometry (AAS) procedures. The findings serve as a useful reference for future study of the Singapore atmospheric environment.