On the lead-concentration in an urban aerosol.
D000336:Aerosols / Q000032:analysis; D000397:Air Pollution; D004391:Dust / Q000032:analysis; D005860:Germany, West; D007854:Lead / Q000032:analysis; D001335:Vehicle Emissions
D000336:Aerosols; D004391:Dust; D001335:Vehicle Emissions; D007854:Lead