In addition to the atmospheric pollutants already known as ozone and particles PM10 and PM2.5, among others, it has been identified that Black Carbon (one of the main components of PM2.3), has severe negative effects on health and is a powerful climate change agent worldwide. The burning of diesel in passenger and cargo trucks is the main source of this pollutant. Its dangerousness takes on special relevance, because in 2012 the World Health Organization (WHO) agency for cancer research concluded for the first time that particles generated by diesel combustion cause lung cancer. With the technology of automatic analyzers to measure Black Carbon in its presentation in fixed or portable form, we enable a continuous measurement of this parameter, obtaining accurate and timely information for considerations and decisions according to the data obtained.