CSEMP assessment of c1 phenanthrenes in sediment at Fladen Ground
Statistical analysis
Trend assessment
Analysis of variance
| Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
|---|---|---|---|---|---|---|---|---|
| mean | 1 | 69.01 | 71.58 | -31.51 | 63.01 | |||
| linear | 2 | 70.77 | 76.11 | -31.39 | 62.77 | 0.239 | 1 | 0.6248 |
| smooth (df = 2) | 3 | 71.75 | 81.75 | -30.87 | 61.75 | 1.025 | 1 | 0.3113 |
| smooth (df = 3) | 4 | 73.47 | 91.47 | -30.73 | 61.47 | 0.279 | 1 | 0.5973 |
Change in log concentration
| Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
|---|---|---|---|---|---|---|---|---|
| overall | 2005 | 2018 | 2.2334 | 2.4721 | 0.2386 | 0.4849 | 0.492 | 0.6358 |
| last 20 years | 2005 | 2018 | 2.2334 | 2.4721 | 0.2386 | 0.4849 | 0.492 | 0.6358 |
Status assessment
No assessment criteria
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for in sediment
- Accessment criteria for in sediment
Media : Sediment (unsieved)
Station : Fladen_FlaOpenSea_se04 (Fladen Ground)
Determinand : C1 Phenanthrenes
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Fladen_FlaOpenSea_se04 (Fladen Ground)
Determinand : C1 Phenanthrenes
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020