CSEMP assessment of c1 dibenzothiophene 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 | 90.48 | 91.87 | -42.24 | 84.48 | | | |
| linear | 2 | 88.95 | 91.62 | -40.48 | 80.95 | 3.529 | 1 | 0.0603 |
| smooth (df = 2) | 3 | 77.95 | 82.50 | -33.98 | 67.95 | 13.000 | 1 | 0.0003 |
| smooth (df = 3) | 4 | 79.90 | 87.10 | -33.95 | 67.90 | 0.057 | 1 | 0.8120 |
| smooth (df = 4) | 5 | 81.01 | 91.90 | -33.51 | 67.01 | 0.885 | 1 | 0.3470 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2017 | 3.372 | 2.849 | -0.5230 | 0.2035 | -2.570 | 0.0233 |
| last 20 years | 2000 | 2017 | 3.372 | 2.849 | -0.5230 | 0.2035 | -2.570 | 0.0233 |
Status assessment
No assessment criteria
Raw data with supporting information
__sdmn_dbtc1_au.jpg "Raw data with supporting information for assessment of c1 dibenzothiophene in sediment at outer (Firth of Clyde)")
Raw data with assessment
__sdmn_dbtc1_da.jpg "Raw data with assessment of c1 dibenzothiophene in sediment at outer (Firth of Clyde)")
Assessment plot
__sdmn_dbtc1_as.jpg "Assessment plot for c1 dibenzothiophene in sediment at outer (Firth of Clyde)")
PAH (alkylated) data
__sdmn_p(l)da.jpg "PAH (alkylated) data for assessment of c1 dibenzothiophene in sediment at outer (Firth of Clyde)")
PAH (alkylated) assessment
__sdmn_p(l)as.jpg "PAH (alkylated) assessment of c1 dibenzothiophene in sediment at outer (Firth of Clyde)")
Related pages
