CSEMP assessment of c3 phenanthrenes in sediment at middle (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 140.82 | 143.39 | -67.41 | 134.82 | | | |
| linear | 2 | 142.06 | 147.40 | -67.03 | 134.06 | 0.754 | 1 | 0.3853 |
| smooth (df = 2) | 3 | 143.72 | 153.72 | -66.86 | 133.72 | 0.341 | 1 | 0.5591 |
| smooth (df = 3) | 4 | 144.46 | 162.46 | -66.23 | 132.46 | 1.258 | 1 | 0.2620 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2009 | 2018 | 4.951 | 4.422 | -0.5290 | 0.5989 | -0.883 | 0.4028 |
| last 20 years | 2009 | 2018 | 4.951 | 4.422 | -0.5290 | 0.5989 | -0.883 | 0.4028 |
Status assessment
No assessment criteria
Raw data with supporting information
__sdmn_pac3_au.jpg "Raw data with supporting information for assessment of c3 phenanthrenes in sediment at middle (Firth of Clyde)")
Raw data with assessment
__sdmn_pac3_da.jpg "Raw data with assessment of c3 phenanthrenes in sediment at middle (Firth of Clyde)")
Assessment plot
__sdmn_pac3_as.jpg "Assessment plot for c3 phenanthrenes in sediment at middle (Firth of Clyde)")
PAH (alkylated) data
__sdmn_p(l)da.jpg "PAH (alkylated) data for assessment of c3 phenanthrenes in sediment at middle (Firth of Clyde)")
PAH (alkylated) assessment
__sdmn_p(l)as.jpg "PAH (alkylated) assessment of c3 phenanthrenes in sediment at middle (Firth of Clyde)")
Related pages
