Projects

CSEMP assessment of chromium in sediment at outer (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1 -6.14 -4.86 6.07-12.14
linear2-11.15 -8.69 9.57-19.15 7.004 10.0081
smooth (df = 2)3-27.76-23.5918.88-37.7618.611 1<0.0001
smooth (df = 3)4-25.76-19.2118.88-37.76 0.001 10.9781
smooth (df = 4)5-23.82-14.0218.91-37.82 0.059 10.8083

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200020175.2264.553-0.6723 0.1412-4.7620.0003
last 20 years200020175.2264.553-0.6723 0.1412-4.7620.0003

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
ERL94.9681.00-0.15901 0.11472-1.3860.9063

 


Raw data with supporting information

Raw data with supporting information for assessment of  chromium in sediment at outer (Firth of Clyde)


Raw data with assessment

Raw data with assessment of  chromium in sediment at outer (Firth of Clyde)


Assessment plot

Assessment plot for  chromium in sediment at outer (Firth of Clyde)


Metals data

Metals data for assessment of  chromium in sediment at outer (Firth of Clyde)


Metals assessment

Metals assessment of  chromium in sediment at outer (Firth of Clyde)


Related pages

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