CSEMP assessment of c2 naphthalenes 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 | 136.17 | 138.74 | -65.08 | 130.17 | | | |
| linear | 2 | 137.56 | 142.90 | -64.78 | 129.56 | 0.606 | 1 | 0.4363 |
| smooth (df = 2) | 3 | 139.28 | 149.28 | -64.64 | 129.28 | 0.287 | 1 | 0.5920 |
| smooth (df = 3) | 4 | 141.15 | 159.15 | -64.57 | 129.15 | 0.127 | 1 | 0.7212 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2009 | 2018 | 4.809 | 5.055 | 0.24545 | 0.31424 | 0.781 | 0.4572 |
| last 20 years | 2009 | 2018 | 4.809 | 5.055 | 0.24545 | 0.31424 | 0.781 | 0.4572 |
Status assessment
No assessment criteria
Raw data with supporting information
__sdmn_napc2_au.jpg "Raw data with supporting information for assessment of c2 naphthalenes in sediment at middle (Firth of Clyde)")
Raw data with assessment
__sdmn_napc2_da.jpg "Raw data with assessment of c2 naphthalenes in sediment at middle (Firth of Clyde)")
Assessment plot
__sdmn_napc2_as.jpg "Assessment plot for c2 naphthalenes in sediment at middle (Firth of Clyde)")
PAH (alkylated) data
__sdmn_p(l)da.jpg "PAH (alkylated) data for assessment of c2 naphthalenes in sediment at middle (Firth of Clyde)")
PAH (alkylated) assessment
__sdmn_p(l)as.jpg "PAH (alkylated) assessment of c2 naphthalenes in sediment at middle (Firth of Clyde)")
Related pages
