CSEMP assessment of c3 phenanthrenes in sediment at outer (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 84.61 | 86.24 | -39.30 | 78.61 | | | |
| linear | 2 | 79.37 | 82.57 | -35.68 | 71.37 | 7.240 | 1 | 0.0071 |
| smooth (df = 2) | 3 | 71.21 | 76.77 | -30.61 | 61.21 | 10.154 | 1 | 0.0014 |
| smooth (df = 3) | 4 | 73.20 | 82.20 | -30.60 | 61.20 | 0.015 | 1 | 0.9039 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2017 | 4.939 | 4.108 | -0.8316 | 0.1972 | -4.216 | 0.0014 |
| last 20 years | 2000 | 2017 | 4.939 | 4.108 | -0.8316 | 0.1972 | -4.216 | 0.0014 |
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 outer (Firth of Clyde)")
Raw data with assessment
__sdmn_pac3_da.jpg "Raw data with assessment of c3 phenanthrenes in sediment at outer (Firth of Clyde)")
Assessment plot
__sdmn_pac3_as.jpg "Assessment plot for c3 phenanthrenes in sediment at outer (Firth of Clyde)")
PAH (alkylated) data
__sdmn_p(l)da.jpg "PAH (alkylated) data for assessment of c3 phenanthrenes in sediment at outer (Firth of Clyde)")
PAH (alkylated) assessment
__sdmn_p(l)as.jpg "PAH (alkylated) assessment of c3 phenanthrenes in sediment at outer (Firth of Clyde)")
Related pages
