Management of substances that have impacts on the atmosphere and hydrosphere
Toshiba Group is working to grasp the extent of emissions of sulfur oxides (SOx) and nitrogen oxides (NOx), both of which are major causes of air pollution, as well as water pollutants and ensure appropriate management of such emissions. Each production site voluntarily sets the maximum permissible levels of concentrations for these substances and complies with these prescribed standards, but total emissions fluctuate as production volumes increase or decrease. Production sites in Europe and North America have already applied to wastewater the environmental impact risk assessment method (whole effluent toxicity (WET)* method), which uses biological indicators. Those in Japan have also started to consider using it as a new indicator of wastewater management.
* Whole Effluent Toxicity