2017, Number 1
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salud publica mex 2017; 59 (1)
Potential health risks from consumption of water with arsenic in Colima, Mexico
Mendoza-Cano O, Sánchez-Piña RA, Barrón-Quintana J, Cuevas-Arellano HB, Escalante-Minakata P, Solano-Barajas R
Language: Spanish
References: 36
Page: 34-40
PDF size: 383.47 Kb.
ABSTRACT
Objective. To estimate potential health risks due to chronic
ingestion of arsenic from groundwater in Colima, Mexico.
Materials and methods. Samples were randomly taken
in 36 wells from 10 local aquifers. Analysis was performed
by ICP-OES following international standards. Geostatistical
interpolation was performed with ArcGIS, implementing a
model weighting inverse distance to estimate arsenic routes
of exposure and consumption on each locality. The Hazard
Quotient Ratio (HQ) and carcinogenic risk (R) for As were
estimated.
Results. The weighted average HQ for arsenic
in Colima is 2.41. There are HQ› 1 values indicating adverse
non-cancer health effects by continuous and prolonged intake
of water with arsenic, which could affect 183 832 individuals
in the state. The risk of developing any type of cancer among
the population in this study due to high arsenic concentrations
in groundwater (R) is 1.089E-3, which could statistically cause
446 cases of cancer.
Conclusions. Current levels of arsenic
in groundwater increase carcinogenic and non-carcinogenic
human health risks in Colima.
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