2017-NPRI Changes to Reporting Requirements

Modifications to reporting thresholds: The mass threshold for cobalt (and its compounds) has been reduced from 10 tonnes to 50 kilograms, and the concentration threshold has been reduced from 1% to 0.1%.

Information for water releases: The requirement to report the concentration of substances released to surface waters has been added. When a direct discharge to surface waters is reported, the average annual concentration (ppm) of the NPRI substance in the effluent is also required to be reported.

Deleted Substances:  Twenty-one substances have been removed from the Part 1, Group A list. NPRI reporting requirements no longer apply to these substances:

  1. C.I. Acid Green 3 (CAS RN 4680-78-8)
  2. C.I. Basic Red 1 (CAS RN 989-38-8)
  3. C.I. Direct Blue 218 (CAS RN 28407-37-6)
  4. C.I. Food Red 15 (CAS RN 81-88-9)
  5. Calcium cyanamide (CAS RN 156-62-7)
  6. Chlorendic acid (CAS RN 115-28-6)
  7. Dimethyl phenol (CAS RN 1300-71-6)
  8. 2,6-Dinitrotoluene (CAS RN 606-20-2)
  9. Dinitrotoluene (mixed isomers) (CAS RN 25321-14-6)
  10. Hexachloroethane (CAS RN 67-72-1)
  11. Isosafrole (CAS RN 120-58-1)
  12. p-Nitrophenol (and its salts) (CAS RN 100-02-7)
  13. Paraldehyde (CAS RN 123-63-7)
  14. Pentachloroethane (CAS RN 76-01-7)
  15. o-Phenylphenol (and its salts) (CAS RN 90-43-7)
  16. Propargyl alcohol (CAS RN 107-19-7)
  17. p-Quinone (CAS RN 106-51-4)
  18. Safrole (CAS RN 94-59-7)
  19. Styrene oxide (CAS RN 96-09-3)
  20. Tetracycline hydrochloride (CAS RN 64-75-5)
  21. Vinylidene chloride (CAS RN 75-35-4)

If you need help with NPRI requirements contact:

Farida Dehghan Ph.D., P.Eng.

Air Quality Modeller

fdehghan[at]airzoneone.com 905-890-6957 ext. 110