Total lead concentrations in scottish soils

摘要: Abstract The distribution of total lead concentration levels in 3944 samples from 896 Scottish soil profiles is reported. relation to some other variables also examined. frequency found be approximately log-normal and described terms the derived mean (x∗) “normal range” (L—L∼) where x ∗ = antilog x, L (x−2 s) L″ (x + 2 s); s being standard deviation, respectively, log·transformed data. for full set data 14 mg/kg normal range 2.5–85 mg/kg. concentrations organic soils are generally higher more variable than those mineral soils. most prominent feature vertical enrichment surface horizons.