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![Fig. 1. 323D hydraulic excavator [5].](publication/367907448/figure/fig1/AS:11431281116807295@1675327331318/D-hydraulic-excavator-5_Q320.jpg)
![Fig. 2. Cat C6.4 engine [6].](publication/367907448/figure/fig2/AS:11431281116854688@1675327331390/Cat-C64-engine-6_Q320.jpg)
This paper studies how the activity of hydraulic excavators found in the Rosia quarry of Jiu affects the environment. For this study we chose the Caterpillar 323D L and 323 D LN hydraulic excavators. The study took place over a period of 30 days. These days we have collected data on the noise level and the level of PM 10 particles in the quarry. Ca...
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Context 1
... samples for this work were performed in a period of 30 days at intervals of 4 hours per day, obtaining the results presented in the graphs below (Figures 3 -4). When performing the measurements, all the norms and laws in force were taken into account, the measurements being performed in accordance with Law no. ...
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