Our primary sources of atmospheric emissions in the Steelmaking, Mining, and Cement sectors are mainly particulate matter (PM), sulfur oxides (SOx), nitrogen oxides (NOx), and carbon monoxide (CO). Therefore, the Company promotes the management of atmospheric emissions, both mobile and fixed, achieving strict control standards, monitoring, and mitigation actions for these emissions.
Historic
Learn more in Our Integrated Report (https://esg.csn.com.br/relatorios/)
305-7 | Emissões de NOX, SOX e outras emissões atmosféricas significativas 305-7 | Emissões atmosféricas da CSN (toneladas)
Monitoring Networks
In our operational units, we have a wide atmospheric monitoring network. At UPV and in the cement factories, monitoring is carried out through isokinetic and continuous measurements, using automatic particulate matter and gas meters.
Additionally, in our cement, mining, and steel operations, we monitor air quality through automatic and semi-automatic editing stations, with control and periodic reporting of reports to the relevant environmental agencies, which consolidate information and report the AQI (Air Quality Index) to the entire local population.