CSEMP assessment of chrysene in sediment at inner (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 141.82 | 143.62 | -67.91 | 135.82 | | | |
| linear | 2 | 137.12 | 140.67 | -64.56 | 129.12 | 6.706 | 1 | 0.0096 |
| smooth (df = 2) | 3 | 138.70 | 144.95 | -64.35 | 128.70 | 0.419 | 1 | 0.5175 |
| smooth (df = 3) | 4 | 138.91 | 149.20 | -63.46 | 126.91 | 1.787 | 1 | 0.1813 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2002 | 2017 | 4.550 | 5.962 | 1.4127 | 0.4776 | 2.958 | 0.0130 |
| last 20 years | 2002 | 2017 | 4.550 | 5.962 | 1.4127 | 0.4776 | 2.958 | 0.0130 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 388.6 | 20.0 | -2.9667 | 0.2561 | -11.583 | 1.0000 |
| ERL | 388.6 | 384.0 | -0.0118 | 0.2561 | -0.046 | 0.5180 |
Raw data with supporting information
__sdmn_chr_au.jpg "Raw data with supporting information for assessment of chrysene in sediment at inner (Firth of Clyde)")
Raw data with assessment
__sdmn_chr_da.jpg "Raw data with assessment of chrysene in sediment at inner (Firth of Clyde)")
Assessment plot
__sdmn_chr_as.jpg "Assessment plot for chrysene in sediment at inner (Firth of Clyde)")
PAH (parent) data
__sdmn_p(p)da.jpg "PAH (parent) data for assessment of chrysene in sediment at inner (Firth of Clyde)")
PAH (parent) assessment
__sdmn_p(p)as.jpg "PAH (parent) assessment of chrysene in sediment at inner (Firth of Clyde)")
Related pages
