Environmental Protection

The Asahi Kasei Group undertakes a number of measures to curtail emissions of sulfur oxides (SOx), nitrogen oxides (NOx), and soot and dust. While emissions are consistently maintained well below regulatory limits, as shown below, we also have more stringent emissions standards as set forth in accords with local authorities and our own voluntary targets.

Note: At some sites, regulation by total pollutant amount applies for some pollutants in addition to concentration limits. Permissible levels shown are the sums of gross emission limits where they apply and concentration limits times amount of emitted gas where they do not. Permissible levels therefore fluctuate from year to year with fluctuations in production volumes.