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Following the study carried out in the town of Zlatna, Alba county, regarding the sources of pollution and environmental polluting agents, during the research and determinations in the laboratory regarding the quality of water and soil, and from the field for the quality of air and noise, we learned the following conclusions :
The water quality investigation following the analyzes carried out in the 5 areas: upstream Ampoi River, Valea Mare tributary, Valea Morilor tributary, downstream Ampoi River, Fenesel tributary, from where I took samples, I can conclude the following: the pH was within normal limits at 4 of the 5 analyzed waters, falling between the values of 7.1-7.4, but the sample from the upstream of the Ampoi river had a pH of 7.7. Conductivity was according to STAS with values between 490-709 µS/cm. Turbidity was within normal limits, NO3 and NO2 were also within water quality standards, as was dissolved O2. Regarding the hardness it can be said that all the analyzed water samples are within the parameters.
The air quality investigation was carried out by measuring CO2 and SO2 using the Spark Lx Datalogger, and the values obtained are normal and within the air quality standards.
The investigation of the noise sources were determined with the PeakTech 5035 digital sound level meter in three areas within the radius of the town, the highest value is due to the car traffic on the national road that crosses the town, but the values obtained fall within the noise quality parameters in the towns .
Following the analyzes in the laboratory (water, soil) and in the field (air, noise), after processing the data it can be said that all the parameters analyzed regarding the possible sources of pollution in the city of Zlatna are within the parameters and the study area does not fall within the category of areas subject to different environmental pollution factors.
