CSEMP assessment of chrysene in sediment at middle (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 92.51 | 95.08 | -43.25 | 86.51 | | | |
| linear | 2 | 91.67 | 97.00 | -41.83 | 83.67 | 2.837 | 1 | 0.0921 |
| smooth (df = 2) | 3 | 90.58 | 100.58 | -40.29 | 80.58 | 3.085 | 1 | 0.0790 |
| smooth (df = 3) | 4 | 87.38 | 105.38 | -37.69 | 75.38 | 5.208 | 1 | 0.0225 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2008 | 2017 | 4.248 | 4.699 | 0.4506 | 0.2393 | 1.882 | 0.0965 |
| last 20 years | 2008 | 2017 | 4.248 | 4.699 | 0.4506 | 0.2393 | 1.882 | 0.0965 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 109.8 | 20.0 | -1.7029 | 0.1389 | -12.258 | 1.0000 |
| ERL | 109.8 | 384.0 | 1.2520 | 0.1389 | 9.012 | <0.0001 |
Raw data with supporting information
__sdmn_chr_au.jpg "Raw data with supporting information for assessment of chrysene in sediment at middle (Firth of Clyde)")
Raw data with assessment
__sdmn_chr_da.jpg "Raw data with assessment of chrysene in sediment at middle (Firth of Clyde)")
Assessment plot
__sdmn_chr_as.jpg "Assessment plot for chrysene in sediment at middle (Firth of Clyde)")
PAH (parent) data
__sdmn_p(p)da.jpg "PAH (parent) data for assessment of chrysene in sediment at middle (Firth of Clyde)")
PAH (parent) assessment
__sdmn_p(p)as.jpg "PAH (parent) assessment of chrysene in sediment at middle (Firth of Clyde)")
Related pages
