| A | B | C | D | E | F | G | H | I | J | K | L | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Info Request Item 8 | |||||||||||
| 3 | Welding Activities Emission Estimates | |||||||||||
| 4 | Georgia Pacific ― Toledo, Oregon | |||||||||||
| 6 | Product | Maximum Daily Usage (1) (lb/day) |
Annual Usage (1) (lb/yr) |
Toxic Air Contaminant | CAS | Emission Factor (2) (lb/Mlb electrode consumed) |
Daily Emissions Estimate (a) (lb/day) |
Annual Emissions Estimate (b) (lb/yr) |
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| 7 | SMAW E7018 | 0.58 | 175 | Chromium (total) | 7440-47-3 | 6.0E-02 | 3.5E-05 | 1.1E-02 | ||||
| 8 | Chromium VI, chromate and dichromate particulate | 18540-29-9 | 3.0E-05 | 1.7E-08 | 5.3E-06 | |||||||
| 9 | Cobalt and compounds | 7440-48-4 | 1.0E-03 | 5.8E-06 | 1.8E-03 | |||||||
| 10 | Manganese and compounds | 7439-96-5 | 1.0E+00 | 5.9E-03 | 1.8E+00 | |||||||
| 11 | Nickel compounds, insoluble | 365 | 2.0E-02 | 1.2E-05 | 3.5E-03 | |||||||
| 12 | GMAW 70s | 0.21 | 65.0 | Chromium (total) | 7440-47-3 | 1.0E-03 | 2.1E-06 | 6.5E-04 | ||||
| 13 | Chromium VI, chromate and dichromate particulate | 18540-29-9 | 5.0E-04 | 1.1E-07 | 3.3E-05 | |||||||
| 14 | Cobalt and compounds | 7440-48-4 | 1.0E-03 | 2.1E-06 | 6.5E-04 | |||||||
| 15 | Manganese and compounds | 7439-96-5 | 3.2E+00 | 6.8E-04 | 2.1E-01 | |||||||
| 16 | Nickel compounds, insoluble | 365 | 1.0E-03 | 2.1E-06 | 6.5E-04 | |||||||
| 17 | GMAW 316 | 0.12 | 35.0 | Chromium (total) | 7440-47-3 | 5.3E+00 | 6.1E-04 | 1.8E-01 | ||||
| 18 | Chromium VI, chromate and dichromate particulate | 18540-29-9 | 1.0E-02 | 1.2E-05 | 3.5E-03 | |||||||
| 19 | Manganese and compounds | 7439-96-5 | 2.5E+00 | 2.8E-04 | 8.6E-02 | |||||||
| 20 | Nickel compounds, insoluble | 365 | 2.3E+00 | 2.6E-04 | 7.9E-02 | |||||||
| 21 | GMAW 308L | 0.082 | 25.0 | Chromium (total) | 7440-47-3 | 5.2E+00 | 4.3E-04 | 1.3E-01 | ||||
| 22 | Chromium VI, chromate and dichromate particulate | 18540-29-9 | 2.6E-01 | 2.2E-05 | 6.6E-03 | |||||||
| 23 | Cobalt and compounds | 7440-48-4 | 1.0E-03 | 8.2E-07 | 2.5E-04 | |||||||
| 24 | Manganese and compounds | 7439-96-5 | 3.5E+00 | 2.8E-04 | 8.7E-02 | |||||||
| 25 | Nickel compounds, insoluble | 365 | 1.8E+00 | 1.5E-04 | 4.6E-02 | |||||||
| 26 | SMAW 6010 | 0.16 | 50.0 | Chromium (total) | 7440-47-3 | 3.0E-02 | 4.9E-06 | 1.5E-03 | ||||
| 27 | Chromium VI, chromate and dichromate particulate | 18540-29-9 | 1.0E-03 | 1.6E-06 | 5.0E-04 | |||||||
| 28 | Manganese and compounds | 7439-96-5 | 9.9E+00 | 1.6E-03 | 5.0E-01 | |||||||
| 29 | Nickel compounds, insoluble | 365 | 4.0E-02 | 6.6E-06 | 2.0E-03 | |||||||
| 30 | SMAW E6013 | 0.016 | 5.00 | Chromium (total) | 7440-47-3 | 4.0E-02 | 6.6E-07 | 2.0E-04 | ||||
| 31 | Chromium VI, chromate and dichromate particulate | 18540-29-9 | 2.0E-05 | 3.3E-10 | 1.0E-08 | |||||||
| 32 | Cobalt and compounds | 7440-48-4 | 1.0E-03 | 1.6E-07 | 5.0E-05 | |||||||
| 33 | Manganese and compounds | 7439-96-5 | 9.5E+00 | 1.6E-04 | 4.7E-02 | |||||||
| 34 | Nickel compounds, insoluble | 365 | 2.0E-02 | 3.3E-07 | 1.0E-05 | |||||||
| 35 | GMAW 309L | 0.25 | 75.0 | Chromium (total) | 7440-47-3 | 3.5E+00 | 8.7E-04 | 2.6E-01 | ||||
| 36 | Chromium VI, chromate and dichromate particulate | 18540-29-9 | 1.8E-01 | 4.4E-05 | 1.3E-02 | |||||||
| 37 | Manganese and compounds | 7439-96-5 | 7.0E-01 | 1.7E-04 | 5.3E-02 | |||||||
| 38 | Nickel compounds, insoluble | 365 | 1.3E+00 | 3.1E-03 | 9.4E-01 | |||||||
| 39 | SMAW ENiCrMo | 0.28 | 85.0 | Chromium (total) | 7440-47-3 | 4.2E+00 | 1.2E-03 | 3.6E-01 | ||||
| 40 | Chromium VI, chromate and dichromate particulate | 18540-29-9 | 2.1E-03 | 5.9E-07 | 1.8E-04 | |||||||
| 41 | Manganese and compounds | 7439-96-5 | 4.3E-01 | 1.2E-04 | 3.7E-02 | |||||||
| 42 | Nickel compounds, insoluble | 365 | 2.5E+00 | 6.9E-04 | 2.1E-01 | |||||||
| 43 | Total TAC Emissions | Chromium (total) | 7440-47-3 | -- | 3.1E-03 | 9.5E-01 | ||||||
| 44 | Chromium VI, chromate and dichromate particulate | 18540-29-9 | -- | 7.9E-05 | 2.4E-02 | |||||||
| 45 | Cobalt and compounds | 7440-48-4 | -- | 8.9E-06 | 2.7E-03 | |||||||
| 46 | Manganese and compounds | 7439-96-5 | -- | 9.2E-03 | 2.8E+00 | |||||||
| 47 | Nickel compounds, insoluble | 365 | -- | 4.2E-03 | 1.3E+00 | |||||||
| 48 | NOTES: | |||||||||||
| 49 | (a) | Daily emissions estimate (lb/day) = (emission factor [lb/Mlb]) x (daily electrode usage [lb/day]) / (1,000 lb/Mlb) | ||||||||||
| 50 | (b) | Annual emissions estimate (lb/yr) = (emission factor [lb/Mlb]) x (annual electrode usage [lb/yr]) / (1,000 lb/Mlb) | ||||||||||
| 51 | ||||||||||||
| 52 | REFERENCES: | |||||||||||
| 53 | (1) | Annual usage rates based on historical usage records and include a margin of error to estimate PTE usage rate. Daily usage rates based on annual PTE usage rates with a saftey factor of 1.2 | ||||||||||
| 54 | applied to account for short-term variability. | |||||||||||
| 55 | (2) | 2020 Air Toxics Emissions Inventory Welding Emission Factor Search Tool provided by the Oregon Department of Environmental Quality. | ||||||||||