Seasonal variation of heavy metals in ambient air and precipitation at a single site in Washington, DC.

@article{Melaku2008SeasonalVO,
  title={Seasonal variation of heavy metals in ambient air and precipitation at a single site in Washington, DC.},
  author={Samuel Melaku and Vernon Morris and Dharmaraj Raghavan and Charles M Hosten},
  journal={Environmental pollution},
  year={2008},
  volume={155 1},
  pages={88-98}
}
Atmospheric samples of precipitation and ambient air were collected at a single site in Washington, DC, for 7 months (for ambient air samples) and 1 year (for wet deposition samples) and analyzed for arsenic, cadmium, chromium and lead. The ranges of heavy metal concentrations for 6-day wet deposition samples collected over the 1-year period were 0.20-1.3 microg/l, 0.060-5.1 microg/l, 0.062-4.6 microg/l and 0.11-3.2 microg/l for arsenic, cadmium, chromium and lead, respectively, with a… CONTINUE READING

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