Abstract
Results are presented for a survey of dust from one hundred and eleven school playgrounds in the Yorkshire and Humberside region, from twenty-six local authorities. Using a uniform sampling regime each school playground was sampled on three separate occasions during the period January 1986 to June 1987. Dust was analysed for Lead (Pb), Cadmium (Cd), Chromium (Cr), Copper (Cu) and Zinc (Zn) by extraction by wet oxidation in concentrated nitric acid and atomic absorption spectrometry. Histograms of concentrations for each element are presented and possible correlations between element concentrations are discussed. The general levels of heavy metals were much as expected, except for a number of schools on the east coast which showed unexpectedly high levels of chromium.
The Following results (in ppm dry wt. basis) were obtained for datasets containing all the participating local authorities
Lead-Mean :333, Range: 11-4354, Cadmium-Mean:2, Range ND-18, Chromium-Mean: 76, Range ND-1800, Copper-Mean:57, Range 1-1530, Zinc-Mean:337, Range 20-3206
The Following results (in ppm dry wt. basis) were obtained for datasets containing all the participating local authorities
Lead-Mean :333, Range: 11-4354, Cadmium-Mean:2, Range ND-18, Chromium-Mean: 76, Range ND-1800, Copper-Mean:57, Range 1-1530, Zinc-Mean:337, Range 20-3206
| Original language | English |
|---|---|
| Place of Publication | Rotherham |
| Publisher | Yorkshire and Humberside Pollution Advisory Council |
| Commissioning body | Yorkshire and Humberside Pollution Advisory Council |
| Number of pages | 84 |
| Publication status | Published - 1987 |