During drilling and blasting in rocks, there is an emission of certain gases, such as CO2, CO, NOx, etc. With the development of technology and the application of modern software available on the market today, it is possible to control the level of gas emissions, analyse their impact on the environment, and predict gas emissions produced by drilling and blasting. This paper will present the possibility of analysing and controlling gas emissions using the O-PitEco software, a product of the O-PitBlast company. Importing the parameters of drilling and blasting, as well as using the database of the software itself (technical characteristics of explosives, initiation systems, etc.), it is possible to control and analyse the results, as well as predict the environmental impact. The software offers overview data in the form of various diagrams, statistically processed data and the possibility of printing all the results in the form of an overview report. With the development of modern technologies, monitoring systems and the possibility of predicting certain segments in the mining field have significantly improved. In that case, there is the possibility of correcting certain parameters during the design of drilling and blasting works, to obtain the best possible effect of rock fragmentation with minimal emissions of harmful gases, which contributes to the reduced environmental impact.