Arsenic (As)

CAS Number



  • vary according to compound
  • semi-metal

Main sources

  • metal industry: metal mining (e.g. copper, lead, cobalt, gold), metal treatment, lead alloys
  • semi-conductor industry
  • lead glass treatment
  • waste management (sludge, incineration processes)
  • earlier: plant protection products, pesticides, disinfectants and in medicines

Thresholds for the reporting requirement of facilities in accordance with Annex 2 PRTRO

(Ordinance on the Register relating to Pollutant Release and the Transfer of Waste and of Pollutants in Waste Water)

  • Air               20 kg/year
  • Water          5 kg/year
  • Soil              5 kg/year


  • almost non-toxic to very toxic (according to compound)
  • carcinogenic

    Further information

    Last modification 04.07.2018

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