Projects

CSEMP assessment of nickel in sediment at Gabbard 2 (Thames)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean128.2931.89-11.1422.29
linear229.9437.94-10.9721.940.347 10.5558
smooth (df = 2)329.9846.64 -9.9919.981.965 10.1609

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200120173.8154.0180.20350.34030.5980.5717
last 20 years200120173.8154.0180.20350.34030.5980.5717

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC55.636.0-0.4347 0.2114-2.0560.9572

 


Raw data with supporting information

Raw data with supporting information for assessment of  nickel in sediment at Gabbard 2 (Thames)


Raw data with assessment

Raw data with assessment of  nickel in sediment at Gabbard 2 (Thames)


Assessment plot

Assessment plot for  nickel in sediment at Gabbard 2 (Thames)


Metals data

Metals data for assessment of  nickel in sediment at Gabbard 2 (Thames)


Metals assessment

Metals assessment of  nickel in sediment at Gabbard 2 (Thames)


Related pages

  • Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
  • Assessment methodology for metals in sediment
  • Accessment criteria for metals in sediment