During the execution of works on the construction of the tunnel Zenica, there is a certain number of activities that can cause negative consequences for the environment. In this regard, the greatest danger is represented by the technological operations of works such as: mechanical excavation, blasting, deep excavations, destruction, and removal of the natural covering layer. Also, construction machines pose a potential danger from spills or accidental spills of oil and oil derivatives, discarding of motor oils and similar waste. Uncontrolled depositing of excavated material, and a plateau for parking machinery near surface and underground water can cause negative consequences for the environment. In this paper, an assessment of the primary environmental pollutants during the excavation of the tunnel Zenica was carried out, i.e., dust and wastewater emissions during construction.