CSEMP assessment of c3 phenanthrenes in sediment at Hunterston (Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 114.81 | 116.20 | -54.41 | 108.81 | | | |
| linear | 2 | 116.75 | 119.41 | -54.37 | 108.75 | 0.067 | 1 | 0.7951 |
| smooth (df = 2) | 3 | 118.69 | 123.23 | -54.34 | 108.69 | 0.061 | 1 | 0.8055 |
| smooth (df = 3) | 4 | 118.50 | 125.70 | -53.25 | 106.50 | 2.189 | 1 | 0.1390 |
| smooth (df = 4) | 5 | 120.23 | 131.12 | -53.12 | 106.23 | 0.265 | 1 | 0.6064 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2018 | 4.797 | 4.864 | 0.06671 | 0.25677 | 0.260 | 0.7988 |
| last 20 years | 2000 | 2018 | 4.797 | 4.864 | 0.06671 | 0.25677 | 0.260 | 0.7988 |
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 Hunterston (Clyde)")
Raw data with assessment
_sdmn_pac3_da.jpg "Raw data with assessment of c3 phenanthrenes in sediment at Hunterston (Clyde)")
Assessment plot
_sdmn_pac3_as.jpg "Assessment plot for c3 phenanthrenes in sediment at Hunterston (Clyde)")
PAH (alkylated) data
_sdmn_p(l)da.jpg "PAH (alkylated) data for assessment of c3 phenanthrenes in sediment at Hunterston (Clyde)")
PAH (alkylated) assessment
_sdmn_p(l)as.jpg "PAH (alkylated) assessment of c3 phenanthrenes in sediment at Hunterston (Clyde)")
Related pages
