CSEMP assessment of naphthalene in sediment at Hunterston (Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 136.32 | 137.61 | -65.16 | 130.32 | | | |
| linear | 2 | 136.51 | 138.97 | -64.26 | 128.51 | 1.806 | 1 | 0.1789 |
| smooth (df = 2) | 3 | 137.46 | 141.63 | -63.73 | 127.46 | 1.050 | 1 | 0.3055 |
| smooth (df = 3) | 4 | 139.10 | 145.64 | -63.55 | 127.10 | 0.367 | 1 | 0.5449 |
| smooth (df = 4) | 5 | 139.25 | 149.05 | -62.62 | 125.25 | 1.848 | 1 | 0.1740 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2017 | 3.995 | 3.456 | -0.5390 | 0.3953 | -1.363 | 0.1929 |
| last 20 years | 2000 | 2017 | 3.995 | 3.456 | -0.5390 | 0.3953 | -1.363 | 0.1929 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 31.68 | 8.00 | -1.3764 | 0.2244 | -6.134 | 1.0000 |
| ERL | 31.68 | 160.00 | 1.6194 | 0.2244 | 7.217 | <0.0001 |
Raw data with supporting information
_sdmn_nap_au.jpg "Raw data with supporting information for assessment of naphthalene in sediment at Hunterston (Clyde)")
Raw data with assessment
_sdmn_nap_da.jpg "Raw data with assessment of naphthalene in sediment at Hunterston (Clyde)")
Assessment plot
_sdmn_nap_as.jpg "Assessment plot for naphthalene in sediment at Hunterston (Clyde)")
PAH (parent) data
_sdmn_p(p)da.jpg "PAH (parent) data for assessment of naphthalene in sediment at Hunterston (Clyde)")
PAH (parent) assessment
_sdmn_p(p)as.jpg "PAH (parent) assessment of naphthalene in sediment at Hunterston (Clyde)")
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