References
Benoit FM, Lebel GL, Williams DT (1979) The determination of polycyclic aromatic hydrocarbons
at the ng/L level in Ottawa tap water. Intern J Environ Anal Chem 6:277–287
Gupta SK, Gupta RC, Gupta AB, Seth AK, Bassin JK, Gupta A (2000) Recurrent acute respiratory
tract infections in areas with high nitrate concentrations in drinking water. Environ Health
Perspect 108:363–366
Mebrahtu G, Zerabruk S (2011) Concentration of heavy metals in drinking water from urban areas
of the Tigray Region, Northern Ethiopia. Momona Ethiop J Sci 3:105–121
Solomon GM, Weiss PM (2002) Chemical contaminants in breast milk: time trends and regional
variability. Environ Health Perspect 110:A339–A347
4
1 Introductory Aspects
Benoit FM, Lebel GL, Williams DT (1979) The determination of polycyclic aromatic hydrocarbons
at the ng/L level in Ottawa tap water. Intern J Environ Anal Chem 6:277–287
Gupta SK, Gupta RC, Gupta AB, Seth AK, Bassin JK, Gupta A (2000) Recurrent acute respiratory
tract infections in areas with high nitrate concentrations in drinking water. Environ Health
Perspect 108:363–366
Mebrahtu G, Zerabruk S (2011) Concentration of heavy metals in drinking water from urban areas
of the Tigray Region, Northern Ethiopia. Momona Ethiop J Sci 3:105–121
Solomon GM, Weiss PM (2002) Chemical contaminants in breast milk: time trends and regional
variability. Environ Health Perspect 110:A339–A347
4
1 Introductory Aspects