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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. In addition, each production site voluntarily sets the maximum permissible levels of concentrations for these substances and complies with these prescribed standards. In FY2013, compared to the FY2012 level, we reduced the combined amount of SOx, NOx, and soot emitted into the atmosphere by 18% and the combined amount of suspended matter, total nitrogen, chemical oxygen demand, and other substances discharged into waters by 6%.

Impacts on the atmosphere
Amount of impact = concentration of each substance × amount of substance emitted
(based on the Air Pollution Control Act)
[Image] Impacts on the atmosphere

Impacts on the hydrosphere
Amount of impact = concentration of each substance × amount of substance discharged
(based on the Water Pollution Control Act)
[Image] Impacts on the hydrosphere

  • Starting in FY2007, data include those for Sigma Power Ariake and Sigma Power Tsuchiura.
*
N-hexane extracts, phenols, copper, zinc, soluble iron, soluble manganese, total chromium, total phosphorus, and nickel

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