CO2_2016 - page 23

Chimica Oggi - Chemistry Today
- vol. 34(2) March/April 2016
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place receives directly the runoff from the great vehicles
traffic as well as being very close to a gas station.
The evaluated parameters such as MOT, HTPs, aliphatic
and PAHs, showed relation between the sediment of the
canal and the area drained by the city. The analysis in
SIM mode led to an electronic clean up, with sensitivity
and limits of detection and quantification appropriate to
determinations of analytes.
The majority of the points showed High level
contamination, and point 6 and 7 (Pepino Channel)
showed very high levels of contamination carried by its
sediments. PAHs resulted in strong contribution of pyrolytic
sources for most of the studied points.
It is important to draw attention to the fact that the
rainwater drainage channels lead this pollutant load
directly to rivers and lakes, without any previous
treatment, which makes this issue an important
environmental issue to be considered.
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