Hydrogen sulphide (H2S) is a weak acid dispersed in the air, through wind when emitted from natural and anthropogenic sources, mainly from industrial plants. It is a pollutant with a high level of toxicity affecting the quality of the environment. It is an aggressive air pollutant that attacks metals used in the electronics industry such as carbon steel, copper and silver alloys, and the formation of thin films such as corrosion and dendrite products, the most common sulphides which damage metal surfaces, promoting metallic corrosion. This gas enters the interior of industrial plants, via air-conditioning systems, holes and ceilings, during any period of the year. In the autumn, winter and spring seasons, staff in companies leave some doors open in certain areas of companies because they do not have air-conditioning systems, with knowledge of the negative effect of H2S on metal components of electronic components, and this corrosive acid easily penetrates. For this reason, a study was carried out inside two plants of the electronics industry in Mexican exposed to low H2S concentrations to determine the damage caused to these electronic devices. The Barride Electronic Microscopy (MBE) technique was applied to determine the types of corrosion types formed: mainly uniform or chopped, and have a better understanding of the chemical agents reacting with the metal surfaces of the electronic components. The MBE technique shows the microphotos and information of the corrosion products presented in this study, in correlation with relative humidity (HR) and temperature levels.