Fig. 3From: Human health and ecology at risk: a case study of metal pollution in Lahore, PakistanHealth risk of metal contamination through ingestion. Oral Health Risk Index values are presented for groundwater samples. The boundaries of the central box are the 25th and 75th percentiles; the horizontal line is the median; and the whiskers of the boxplot represent the minimum and maximum values. The Red dashed line represents the threshold limit for oral health riskBack to article page