Lonza Group applies state-of-the-art technology for air emission control. The focus is on greenhouse gas emissions (CO2), and volatile organic compounds (VOC), as precursors to low atmospheric ozone. Other parameters monitored are nitrogen oxides, sulfur dioxide and particulate matter.
Parameters monitored for water pollution are total organic carbon (TOC) or chemical oxygen demand (COD), heavy metals, nitrogen and phosphorus. Depending on the site-specific processes and production, local requirements may also include other relevant parameters. Organic substances in effluent waters are measured as total organic carbon (TOC) in metric tons C, or chemical oxygen demand (COD) in metric tons O2. Heavy metals are presented as metric tons of the sum of Arsenic( As), Cadmium (Cd), Chromium (Cr), Copper (Cu), Lead (Pb), Mercury (Hg), Nickel (Ni) and Zinc (Zn). The main source of heavy metals is the usage of metal-containing catalysts. The eutrophying nitrogen (N) and phosphorous (P) containing compounds are measured in metric tons of N and metric tons of P, respectively.