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 | 144.71 | 145.91 | -69.35 | 138.71 | | | |
| linear | 2 | 144.08 | 146.36 | -68.04 | 136.08 | 2.632 | 1 | 0.1048 |
| smooth (df = 2) | 3 | 145.48 | 149.33 | -67.74 | 135.48 | 0.596 | 1 | 0.4399 |
| smooth (df = 3) | 4 | 147.47 | 153.47 | -67.73 | 135.47 | 0.012 | 1 | 0.9134 |
| smooth (df = 4) | 5 | 147.00 | 155.91 | -66.50 | 133.00 | 2.467 | 1 | 0.1162 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2018 | 4.011 | 3.389 | -0.6216 | 0.3740 | -1.662 | 0.1160 |
| last 20 years | 2000 | 2018 | 4.011 | 3.389 | -0.6216 | 0.3740 | -1.662 | 0.1160 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 29.64 | 8.00 | -1.3098 | 0.2108 | -6.212 | 1.0000 |
| ERL | 29.64 | 160.00 | 1.6859 | 0.2108 | 7.996 | <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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