Fig. 5: The presence and variations in heavy metals concentrations (µg/L) identified in urban waterways. | npj Antimicrobials and Resistance

Fig. 5: The presence and variations in heavy metals concentrations (µg/L) identified in urban waterways.

From: Environmental hazards from pollution of antibiotics and resistance-driving chemicals in an urban river network from Malawi

Fig. 5

A Violin plots showing the distribution of heavy metal concentrations (µg/L), stratified by site, including where acceptable levels have been exceeded by WHO reference standards [denoted by a dashed red line]. Results are obtained from 55 water samples (Site 1: n = 27, Site 2: n = 28) collected at weekly intervals between May 2021 and November 2021. B A list of accepted international reference standards for heavy metal concentrations (WHO/ USEFA).

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