Rubber Tire (6PPD-Quinone) and Coho Salmon
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Species Common Name
Coho Salmon
Latin Name (Genus species)
Oncorhynchus kisutch
species (latin)
Oncorhynchus
Stressor Name
6PPD-Quinone
Specific Stressor Metric
6PPD-Quinone Concentration 24-hour
Stressor Units
(ng/L)
Vital Rate (Process)
Survivorship
Life Stage
Activity
Rearing
Geography
Puget Sound
Detailed SR Function Description
Acute Toxicity of 6PPD-Quinone to Early Life Stage Juvenile Chinook (Oncorhynchus tshawytscha) and Coho (Oncorhynchus kisutch) Salmon (Lo et al. 2023).
The breakdown product of the rubber tire antioxidant N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine-quinone (6PPD)-6-PPD-quinone has been strongly implicated in toxic injury and death in coho salmon (Oncorhynchus kisutch) in urban waterways. Less information is known about Chinook Salmon.
Lo et al (2023) investigated the acute toxicity of 6PPD-Q to newly feeding (~3 weeks post swim-up) juvenile Chinook and coho over a 24-h exposure. Mortality-based concentration–response curves were established, and a comparison of species sensitivity was explored. Bonnie et al (2023) results could be used to inform the risk of this prevalent urban contaminant to juvenile Chinook and coho and to aid in the conservation, recovery, and management efforts.
Figure 1 Caption: Concentration–response curves for 24-h juvenile (A) coho salmon and (B) Chinook salmon exposures to 6PPD-quinone. Results confirmed that juvenile Chinook are far less sensitive to 6PPD-quinone than coho. Measured concentrations at test initiation were used to calculate the dose–response curve. The median lethal concentration (LC50) was calculated using a log-logistic model.
See Figure 1: Concentration–response curves for 24-h juvenile (A) coho salmon and (B) Chinook salmon exposures to 6PPD-quinone. Results confirmed that juvenile Chinook are far less sensitive to 6PPD-quinone than coho. Measured concentrations at test initiation were used to calculate the dose–response curve. The median lethal concentration (LC50) was calculated using a log-logistic model.
Curve traced from image - likely to contain errors.
The breakdown product of the rubber tire antioxidant N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine-quinone (6PPD)-6-PPD-quinone has been strongly implicated in toxic injury and death in coho salmon (Oncorhynchus kisutch) in urban waterways. Less information is known about Chinook Salmon.
Lo et al (2023) investigated the acute toxicity of 6PPD-Q to newly feeding (~3 weeks post swim-up) juvenile Chinook and coho over a 24-h exposure. Mortality-based concentration–response curves were established, and a comparison of species sensitivity was explored. Bonnie et al (2023) results could be used to inform the risk of this prevalent urban contaminant to juvenile Chinook and coho and to aid in the conservation, recovery, and management efforts.
Figure 1 Caption: Concentration–response curves for 24-h juvenile (A) coho salmon and (B) Chinook salmon exposures to 6PPD-quinone. Results confirmed that juvenile Chinook are far less sensitive to 6PPD-quinone than coho. Measured concentrations at test initiation were used to calculate the dose–response curve. The median lethal concentration (LC50) was calculated using a log-logistic model.
See Figure 1: Concentration–response curves for 24-h juvenile (A) coho salmon and (B) Chinook salmon exposures to 6PPD-quinone. Results confirmed that juvenile Chinook are far less sensitive to 6PPD-quinone than coho. Measured concentrations at test initiation were used to calculate the dose–response curve. The median lethal concentration (LC50) was calculated using a log-logistic model.
Curve traced from image - likely to contain errors.
PoE Chain
Road, Cars, Vehicles, Ties, Rubber, Runoff
Function Type
continuous
Stressor Scale
linear
Citation(s)
Lo, B. P., Marlatt, V. L., Liao, X., Reger, S., Gallilee, C., Ross, A. R., & Brown, T. M. (2023). Acute Toxicity of 6PPD‐Quinone to Early Life Stage Juvenile Chinook (Oncorhynchus tshawytscha) and Coho (Oncorhynchus kisutch) Salmon. Environmental Toxicology and Chemistry, 42(4), 815-822.
Citation Link
Images
Stressor Response csv data
sr_curve (5)_0.csv
(668 bytes)
| Stressor (X) | Mean System Capacity (%) | SD | low.limit | up.limit |
|---|---|---|---|---|
| 0 | 100 | 0 | 0 | 100 |
| 5.86 | 96.03 | 3 | 50 | 100 |
| 10.81 | 94.63 | 3 | 50 | 99.53 |
| 14.41 | 91.82 | 5 | 50 | 99.53 |
| 20.27 | 86.92 | 10 | 50 | 100 |
| 24.77 | 82.48 | 10 | 29.67 | 100 |
| 27.93 | 78.27 | 15 | 29.67 | 100 |
| 31.98 | 71.26 | 20 | 29.67 | 97.2 |
| 35.36 | 65.19 | 20 | 29.67 | 97.2 |
| 39.41 | 57.71 | 20 | 29.67 | 94.39 |
| 41.89 | 51.64 | 25 | 29.67 | 94.39 |
| 45.05 | 44.86 | 25 | 29.67 | 94.39 |
| 48.42 | 38.32 | 25 | 0.47 | 94.39 |
| 52.93 | 30.14 | 25 | 0.47 | 53.04 |
| 54.95 | 26.4 | 25 | 0.47 | 53.04 |
| 58.11 | 21.73 | 20 | 0.47 | 53.04 |
| 60.59 | 17.99 | 20 | 0.47 | 53.04 |
| 64.64 | 13.55 | 20 | 0.47 | 53.04 |
| 68.69 | 9.58 | 20 | 0.47 | 36.68 |
| 73.87 | 7.01 | 10 | 0.47 | 36.68 |
| 80.18 | 4.21 | 10 | 0.47 | 27.34 |
| 87.84 | 2.34 | 10 | 0 | 27.34 |
| 99.1 | 0.7 | 10 | 0 | 20.79 |
| 106.08 | 0.23 | 10 | 0.23 | 20.79 |
Stressor Response Chart