CSEMP assessment of mercury in sediment at inner (Firth of Forth)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 123.65 | 124.85 | -58.83 | 117.65 | | | |
| linear | 2 | 121.67 | 123.96 | -56.84 | 113.67 | 3.981 | 1 | 0.0460 |
| smooth (df = 2) | 3 | 123.64 | 127.49 | -56.82 | 113.64 | 0.031 | 1 | 0.8603 |
| smooth (df = 3) | 4 | 124.90 | 130.90 | -56.45 | 112.90 | 0.738 | 1 | 0.3904 |
| smooth (df = 4) | 5 | 123.72 | 132.63 | -54.86 | 109.72 | 3.184 | 1 | 0.0743 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2016 | -0.9886 | -1.4468 | -0.4582 | 0.2160 | -2.121 | 0.0499 |
| last 20 years | 1999 | 2016 | -0.9886 | -1.4468 | -0.4582 | 0.2160 | -2.121 | 0.0499 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.23532 | 0.07000 | -1.2125 | 0.1249 | -9.705 | 1.0000 |
| ERL | 0.23532 | 0.15000 | -0.4503 | 0.1249 | -3.604 | 0.9988 |
Raw data with supporting information
__sdmn_hg_au.jpg "Raw data with supporting information for assessment of mercury in sediment at inner (Firth of Forth)")
Raw data with assessment
__sdmn_hg_da.jpg "Raw data with assessment of mercury in sediment at inner (Firth of Forth)")
Assessment plot
__sdmn_hg_as.jpg "Assessment plot for mercury in sediment at inner (Firth of Forth)")
Metals data
__sdmn_mtlsda.jpg "Metals data for assessment of mercury in sediment at inner (Firth of Forth)")
Metals assessment
__sdmn_mtlsas.jpg "Metals assessment of mercury in sediment at inner (Firth of Forth)")
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for metals in sediment
- Accessment criteria for metals in sediment
