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Bulletin of the National Research Centre

Table 1 Summary statistics for U contamination in milk

From: Uranium contamination of milk from cattle in the uranium-mining area in Siavonga District of Zambia: a preliminary human health risk assessment

Descriptive statistics
Variable Site type n  Mean Median Tr. Mean St. Dev SE Mean Min Max Q1 Q3
Conc. of U Mining area (case) 100 0.83 0.83 0.76 0.64 0.06 BDL 3.62 0.43 1.03
  Non-mining area (control) 123 0.08 0.08 0.08 0.05 0.004 BDL 0.24 0.05 0.11
  1. Conc. = Concentration in µg/L
  2. Min, Max, Tr. Mean, St. Dev, SE Mean Q1 and Q3 stand for minimum, maximum, trimmed mean, standard deviation, standard error mean, lower quartile and the upper quartile, respectively
  3. BDL below detection limit of the ICP MS used in the analysis of the samples
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