The oldest oil basin in the world is located in the Polish Carpathians. Former mines, often abandoned, have become technical monuments. The growing popularity of industrial tourism in the world and in Poland attracts more and more tourists who want to "find oil" on their own. In most cases, these are abandoned crude oil and natural gas mines, being in such places is associated with the risk of poisoning, ignition or explosion of escaping gases from unprotected crude oil mines or borehole outlets. The article also points to the heritage of oil mining in the Polish Carpathians and related cultural routes. The author focuses on the issue related to the occurrence of the hazard zone of hydrogen sulphide poisoning or methane explosion in the sites of old oil mines. It presents the possibility of using the mobile multi-gas detector Dräger X-am 8000 as a personal device for monitoring the concentration of gases and vapours considered toxic and / or explosive, such as Methane or Hydrogen Sulfide. It also proposes the use of the Dräger X-am 8000 multi-gas detector, which in combination with the Dräger X-site Live real-time area monitoring module can serve as a mobile system for short- or long-term monitoring of the above-mentioned zones.