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 | 108.56 | 110.06 | -51.28 | 102.56 | | | |
| linear | 2 | 110.55 | 113.45 | -51.27 | 102.55 | 0.019 | 1 | 0.8902 |
| smooth (df = 2) | 3 | 112.53 | 117.53 | -51.26 | 102.53 | 0.017 | 1 | 0.8954 |
| smooth (df = 3) | 4 | 112.07 | 120.07 | -50.03 | 100.07 | 2.460 | 1 | 0.1168 |
| smooth (df = 4) | 5 | 114.04 | 126.29 | -50.02 | 100.04 | 0.023 | 1 | 0.8803 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2017 | 4.805 | 4.843 | 0.03869 | 0.27995 | 0.138 | 0.8922 |
| last 20 years | 2000 | 2017 | 4.805 | 4.843 | 0.03869 | 0.27995 | 0.138 | 0.8922 |
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
