Table 4.

Analyte concentrations (mg/L) in drinking water, by subcity—Addis Ababa, Ethiopia, 2011^a.

	Overall (n = 151)			Akaki-Kality (n = 101)			Yeka (n = 50)
Analyte	Range	Mean	% >CV	Range	Mean	% >CV	Range	Mean	% >CV
Manganese∗	<LOD–0.15	<LOD	17%	<LOD–0.150	<LOD	2%	<LOD–0.120	0.028	47%
Nitrates∗	<LOD–740	1.12	1%	<LOD–5.10	3.48	0%	<LOD–740	<LOD	2%
Lead∗	<LOD–0.007	<LOD	0%	<LOD–0.007	<LOD	0%	<LOD–0.003	<LOD	0%
Copper	<LOD–0.024	<LOD	0%	<LOD–0.024	<LOD	0%	<LOD	<LOD	0%
Cadmium	<LOD–0.001	<LOD	0%	<LOD–0.001	<LOD	0%	<LOD	<LOD	0%
Arsenic	<LOD–0.004	<LOD	0%	<LOD	<LOD	0%	<LOD–0.004	<LOD	0%
Chromium	<LOD	<LOD	0%	<LOD	<LOD	0%	<LOD	<LOD	0%
Cobalt	<LOD	<LOD	0%	<LOD	<LOD	0%	<LOD	<LOD	0%
Mercury	<LOD	<LOD	0%	<LOD	<LOD	0%	<LOD	<LOD	0%

CV = comparison value (provided in Table 1).

^aOnly metals detected in 5% or more of samples.

^∗ p < 0.05 for maximum likelihood estimation comparing Akaki-Kality to Yeka.