1240 substances
1. Lead and its compounds(Threshold 1,000ppm) 487 substances by CAS#
2. Mercury and its compounds(1,000ppm) 240
3. Cadmium and its compouds(100ppm) 276
4. Hexavalent chromium compound(1,000ppm) 86
5. PBBs(1,000ppm) 119
6. PBDEs(1,000ppm) 32
7. Other hazardous substances government defines ?