China China publishes second List of Priority Chemicals for Regulation, adding 18 chemicals including PFOA

China publishes second List of Priority Chemicals for Regulation, adding 18 chemicals including PFOA

On November 2, 2020, the Ministry of Ecology and Environment of China published the second List of Priority Chemicals for Regulation. The 18 listed chemical substances are as follows.

Number Name of chemical CAS No.
PC023 1,1-dichloroethylene 75-35-4
PC024 1,2-dichloropropane 78-87-5
PC025 2,4-dynitrotoluene 121-14-2
PC026 2,4,6-tri-tert-butylphenol 732-26-3
PC027 Benzene 71-43-2
PC028 Polycyclic aromatic hydrocarbons, including:
Benzo[a]anthracene 56-55-3
Chrysene 218-01-9
Benzo[a]pyrene 50-32-8
Benzo[b]fluoranthene 205-99-2
Benzo[k]fluoranthene 207-08-9
Anthracene 120-12-7
Dibenz[a,h]anthracene 53-70-3
PC029 Polychlorinated dibenzo-p-dioxins (PCDDs)

Polychlorinated dibenzofurans (PCDFs)

PC030 Toluene 108-88-3
PC031 o-Toluidine 95-53-4
PC032 Tris(2-chloroethyl) phosphate 115-96-8
PC033 Hexachloro-1,3-butadiene 87-68-3
PC034 Chlorobenzenes including:
Pentachlorobenzene 608-93-5
Hexachlorobenzene 118-74-1
PC035 Perfluorooctanoic acid (PFOA) and its salts and related compounds 335-67-1 (PFOA)
PC036 Cyanides1
PC037 Thallium and its compounds 7440-28-0 (Thallium)
PC038 Pentachlorophenol and its salts and their esters 87-86-5





PC039 Pentachlorobenzenethiol 133-49-3
PC040 Tris(4-isopropylphenyl) phosphate 68937-41-7

1 Hydrogen cyanide, any simple cyanide compounds (mostly alkali metal and alkaline earth metal cyanides) and zinc cyanide complexes.


One or more of the following regulatory measures against environmental risks will be taken for chemical substances listed above.

  1. The chemical substances on the list will be added to the List of Toxic and Hazardous Air Pollutants, List of Toxic and Hazardous Water Pollutants, List of Priority Toxic and Hazardous Substances in Soil for Regulation, etc. and managed by the Air Pollution Control Act, Water Pollution Control Act and Soil Pollution Control Act.
  2. Companies that use toxic or hazardous substances for production or discharge toxic or hazardous substances in production operations will be subject to mandatory clean production audits according to the Clean Production Promotion Act.
  3. Companies subject to a mandatory clean production audit will have their relevant information published, including names and quantities of toxic and hazardous materials they use or discharge according to the Measures on Clean Production Audits.
  4. Relevant mandatory national standards will be revised and some of the chemical substances will be banned in certain products.
  5. Companies will be advised to use materials and products on the List of Substitutes for Toxic and Hazardous Materials (Products) Recommended by the Government, and to keep developing and using low-toxic and low-hazardous as well as non-toxic and non-hazardous materials.


The original list can be viewed at this link (in Simplified Chinese):

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