CSEMP assessment of c2 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 | 99.14 | 100.52 | -46.57 | 93.14 | | | |
| linear | 2 | 96.20 | 98.87 | -44.10 | 88.20 | 4.936 | 1 | 0.0263 |
| smooth (df = 2) | 3 | 88.94 | 93.48 | -39.47 | 78.94 | 9.266 | 1 | 0.0023 |
| smooth (df = 3) | 4 | 90.92 | 98.12 | -39.46 | 78.92 | 0.021 | 1 | 0.8838 |
| smooth (df = 4) | 5 | 89.87 | 100.76 | -37.93 | 75.87 | 3.046 | 1 | 0.0809 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2017 | 3.566 | 2.872 | -0.6942 | 0.2463 | -2.819 | 0.0145 |
| last 20 years | 2000 | 2017 | 3.566 | 2.872 | -0.6942 | 0.2463 | -2.819 | 0.0145 |
Status assessment
No assessment criteria
Raw data with supporting information
__sdmn_dbtc2_au.jpg "Raw data with supporting information for assessment of c2 dibenzothiophene in sediment at outer (Firth of Clyde)")
Raw data with assessment
__sdmn_dbtc2_da.jpg "Raw data with assessment of c2 dibenzothiophene in sediment at outer (Firth of Clyde)")
Assessment plot
__sdmn_dbtc2_as.jpg "Assessment plot for c2 dibenzothiophene in sediment at outer (Firth of Clyde)")
PAH (alkylated) data
__sdmn_p(l)da.jpg "PAH (alkylated) data for assessment of c2 dibenzothiophene in sediment at outer (Firth of Clyde)")
PAH (alkylated) assessment
__sdmn_p(l)as.jpg "PAH (alkylated) assessment of c2 dibenzothiophene in sediment at outer (Firth of Clyde)")
Related pages
