Maracaibo lake water and sediment quality, Zulia State
Keywords:
Maracaibo Lake, water quality, environmental contamination, heavy metals.Abstract
The Maracaibo Lake water and sediment were tested in six sampling stations distributed in the north and south of the lake. The physicochemical and environmental parameters were determined as well as the relation was established between these parameters and the areas affected by waste discharge, landfills, liquid and solid industrial wastes resulting from oil prospection and agricultural activities and organic material carry-overs in rivers and pluvial drainage. This shows a level of contamination caused by increased content of nutrients (nitrogen and phosphorus) in the areas adjacent to the rivers and residual water discharge. It was observed that a saline wedge was formed due to the penetration of lake waters coming from the Gulf of Venezuela. The concentration of heavy metal was below permissible levels in the water and very heterogeneous in the sediments.Downloads
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