Preventing Health Water Related Risks In
Growing Megacities: The Southern Part Of
Mexico City
Author(s)
R. Rodriguez-Castillo & M. A. Armienta-Hernandez
Abstract
Megacities in developing countries are growing without environmental controls.
New poor neighborhoods are located in formal urban area surroundings. In
Mexico City urbanization is going to the volcanic hillsides of the Sierra
Chichinautzin range. The volcanic environment and rocks restricts the sewage
line construction. Some people conduct wastewater to natural cavities.
Some wells located in piedmont contain organic matter and consequently
nitrogen compounds. The geologic environment (lacustrine sediments rich in
organic matter, volcanic rocks) propitiates the presence of sulphur compounds.
A groundwater monitoring was carried out in the Southern part of Mexico
City. Chemical analyses included trace elements, organic compounds (volatiles)
and water stable isotopes. Nitrates, arsenic, and chlorination transformation
products were detected. However, very low concentrations of volatiles and
arsenic were determined. The detection of wells with quality of water problems
and potential contamination sources around them is helping to improve water
management. Treatment plants in contaminated wells are another proposed
solution, due to the limitations in water availability.
Keywords: Basin of Mexico, health risks, sanitation.
Keywords
Basin of Mexico, health risks, sanitation
Related Book
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