Water quality and relationship between superficial and ground water in Rome (Aniene River basin,central Italy) |
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Authors: | Francesco La Vigna Simone Ciadamidaro Roberto Mazza Laura Mancini |
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Institution: | 1.Geological Sciences Department, Applied and Environmental Geology Lab,RomaTRE University,Rome,Italy;2.Italian National Institute of Health—Istituto Superiore di Sanità,Rome,Italy;3.Department of Animal and Human Biology,“Sapienza”—University of Rome,Rome,Italy |
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Abstract: | Chemical, physical, and biological features of streams and ground water of the North-Eastern area of Rome are jointly analyzed
in order to assess the status of water resources. Ground water was investigated with classical survey methods (pH, temperature,
and electric conductivity). Microbiological pollution, faunal composition, and stream surrounding area conditions of surface
waters were studied, in order to quantify the residual value of these ecosystems from both a human and an environmental point
of view. Results show a general impairment of the system and the comparison between superficial waters and shallow ground
waters makes it possible to detect the presence of a connection between the two levels. This relationship occurs as an exchange
from superficial waters (streams and rivers) to the shallow aquifers. Where superficial waters are contaminated, as in the
Tor Sapienza stream, pollutants move to the shallow aquifers too, due to the decreased pressure of the over-exploited aquifer.
Moreover, uncontrolled drilling activity, diffused in urban areas, makes it possible the connection between shallow and deep
ground water. Notwithstanding this, the mixing between superficial and deep ground water system in Rome is not very widespread
and, apparently, limited to restricted areas. |
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