Projects

CSEMP assessment of chromium in sediment at Off Tyne

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1 3.104.741.45 -2.90
linear2 2.775.972.61 -5.232.330 10.1269
smooth (df = 2)3-0.774.785.39-10.775.542 10.0186
smooth (df = 3)4 0.979.975.51-11.030.253 10.6147

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920174.3064.5140.208560.128241.6260.1298
last 20 years199920174.3064.5140.208560.128241.6260.1298

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
ERL91.3381.00-0.12003 0.08130-1.4760.9172

 


Raw data with supporting information

Raw data with supporting information for assessment of  chromium in sediment at Off Tyne


Raw data with assessment

Raw data with assessment of  chromium in sediment at Off Tyne


Assessment plot

Assessment plot for  chromium in sediment at Off Tyne


Metals data

Metals data for assessment of  chromium in sediment at Off Tyne


Metals assessment

Metals assessment of  chromium in sediment at Off Tyne


Related pages

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