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2015 Summary Report: Reviewed Facility-Reported Data

3. Impact of Changes to Reporting Requirements in 2014

There were no changes to NPRI reporting requirements for the 2015 reporting year. However, several changes were made for the 2014 reporting year. This section provides a brief comparative analysis of how these changes have affected facility-reported information for the 2014 and 2015 reporting years.

Additions: Two substances, thallium (and its compounds) and 2-(2-methoxyethoxy)ethanol, were added to Part 1 of the NPRI substance list for the 2014 reporting year.

2-(2-methoxyethoxy)ethanol: For the 2014 reporting year, nine facilities reported 0.0458 tonnes of releases of 2-(2-methoxyethoxy)ethanol. For 2015, ten facilities reported 0.0319 tonnes, a 30% decrease from the previous year. Most of the releases of this substance were reported by one paint and coating manufacturing facility, who reported changes in production levels for their decrease in reported releases between 2014 and 2015.

Thallium (and its compounds): For the 2014 reporting year, 20 facilities reported releases of 2,874 kg of thallium (and its compounds). In 2015, eight additional facilities reported thallium (and its compounds), with 28 facilities reporting 3,390 kg of releases (an 18% increase). Most of this increase in releases is due to a lead and zinc smelting facility that reported that it increased production in 2015. Almost all of the releases of thallium (and its compounds) reported to the NPRI comes from metal smelters, with other small sources including waste water treatment facilities and metal mines.     

Alternate reporting threshold: 9 substances had their mass threshold for reporting reduced as of the 2014 reporting year. The changes from 2013 to 2014 and 2015 in total releases and in the total number of facilities reporting each substance are indicated in Table 3-1 below.

Seven of these substances (acrylonitrile, bisphenol A, isoprene, nonylsphenol and its ethoxylates, quinoline, toluene-2,4-diisocyanate, and toluenediisocyanate) were reported on by more facilities in the years following these changes. Five of these substances (acrylonitrile, bisphenol A, nonylsphenol and its ethoxylates, quinoline, and toluene-2,4-diisocyanate) showed corresponding increases in reported releases as well. Also of note is that fact that the number of facilities reporting bisphenol A and toluene-2,4-diisocyanate increased in both 2014 and in 2015.

The remaining two substances (hydrazine and toluene-2,6-diisocyanate) did not see an increase in the number of facilities reporting: one less facility reported releases of toluene-2,6-diisocynate in 2014 and 2015, compared with 2013, as a result of changes made to their operational practices, and the number of facilities reporting hydrazine (and its salts) did not change.

Even though the number of facilities reporting on isoprene increased (9 facilities in 2013 to 15 facilities in 2014 and 2015), releases of this substance stayed consistent between 2013 and 2014, and decreased significantly between 2014 and 2015.  This is due to one facility that indicated it had instituted pollution prevention activities in both 2014 and 2015.

Table 3-1 2013-2015 comparison of total direct releases reported and number of reporting facilities
Substance name (and new mass reporting threshold)Number of 2013 facilitiesTotal 2013 direct releases  (kg)Number of  2014 facilitiesTotal 2014 direct releases (kg)Number of  2015 facilitiesTotal 2015 direct releases (kg)Change in number of reporting facilities - 2013 to 2015Change in direct releases (in kg) - 2013 to 2015
Acrylonitrile (1,000 kg; 0.1% concentration)63,57786,06686,52122,944
Bisphenol A (1,000 kg; 1% concentration)61181092229216291
Hydrazine (and its salts) (1,000 kg; 1% concentration)41,24541,28541,8780633
Isoprene (100 kg; 1% concentration)98,299158,401156,4356- 1,864
Nonylphenol and its ethoxylates (1,000 kg; 1% concentration)4324,8466449,2256346,4612021,615
Quinoline (and its salts) (50 kg of total PAHs released, 5 kg of quinolone released)4200112288290490
Toluene-2,4-diisocyanate (100 kg; 0.1% concentration)5-54372542254
Toluene-2,6-diisocyanate (100 kg; 0.1% concentration)4-30.12530.129-10.129
Toluenediisocyanate (mixed isomers) (100 kg; 0.1% concentration)1017315160151385- 34

For more information on these changes and other changes made to NPRI reporting requirements, please refer to the Changes to the NPRI over Time (Substance List Changes and Other Modifications).

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