CSEMP assessment of c3 naphthalenes 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 | 120.43 | 121.63 | -57.21 | 114.43 | | | |
| linear | 2 | 122.42 | 124.70 | -57.21 | 114.42 | 0.013 | 1 | 0.9088 |
| smooth (df = 2) | 3 | 124.41 | 128.26 | -57.21 | 114.41 | 0.000 | 1 | 0.9880 |
| smooth (df = 3) | 4 | 125.91 | 131.91 | -56.96 | 113.91 | 0.501 | 1 | 0.4791 |
| smooth (df = 4) | 5 | 127.14 | 136.05 | -56.57 | 113.14 | 0.777 | 1 | 0.3780 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2018 | 5.123 | 5.150 | 0.02710 | 0.23472 | 0.115 | 0.9095 |
| last 20 years | 2000 | 2018 | 5.123 | 5.150 | 0.02710 | 0.23472 | 0.115 | 0.9095 |
Status assessment
No assessment criteria
Raw data with supporting information
_sdmn_napc3_au.jpg "Raw data with supporting information for assessment of c3 naphthalenes in sediment at Hunterston (Clyde)")
Raw data with assessment
_sdmn_napc3_da.jpg "Raw data with assessment of c3 naphthalenes in sediment at Hunterston (Clyde)")
Assessment plot
_sdmn_napc3_as.jpg "Assessment plot for c3 naphthalenes in sediment at Hunterston (Clyde)")
PAH (alkylated) data
_sdmn_p(l)da.jpg "PAH (alkylated) data for assessment of c3 naphthalenes in sediment at Hunterston (Clyde)")
PAH (alkylated) assessment
_sdmn_p(l)as.jpg "PAH (alkylated) assessment of c3 naphthalenes in sediment at Hunterston (Clyde)")
Related pages
