CSEMP assessment of pyrene 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 | 154.79 | 156.18 | -74.40 | 148.79 | | | |
| linear | 2 | 151.79 | 154.46 | -71.90 | 143.79 | 5.002 | 1 | 0.0253 |
| smooth (df = 2) | 3 | 153.21 | 157.76 | -71.61 | 143.21 | 0.579 | 1 | 0.4465 |
| smooth (df = 3) | 4 | 154.26 | 161.46 | -71.13 | 142.26 | 0.956 | 1 | 0.3283 |
| smooth (df = 4) | 5 | 156.04 | 166.93 | -71.02 | 142.04 | 0.213 | 1 | 0.6444 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2002 | 2018 | 5.449 | 6.505 | 1.0563 | 0.4356 | 2.425 | 0.0294 |
| last 20 years | 2002 | 2018 | 5.449 | 6.505 | 1.0563 | 0.4356 | 2.425 | 0.0294 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 668.6 | 24.0 | -3.327 | 0.245 | -13.572 | 1.0000 |
| ERL | 668.6 | 665.0 | -0.005 | 0.245 | -0.022 | 0.5087 |
Raw data with supporting information
__sdmn_pyr_au.jpg "Raw data with supporting information for assessment of pyrene in sediment at inner (Firth of Clyde)")
Raw data with assessment
__sdmn_pyr_da.jpg "Raw data with assessment of pyrene in sediment at inner (Firth of Clyde)")
Assessment plot
__sdmn_pyr_as.jpg "Assessment plot for pyrene in sediment at inner (Firth of Clyde)")
PAH (parent) data
__sdmn_p(p)da.jpg "PAH (parent) data for assessment of pyrene in sediment at inner (Firth of Clyde)")
PAH (parent) assessment
__sdmn_p(p)as.jpg "PAH (parent) assessment of pyrene in sediment at inner (Firth of Clyde)")
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