Projects

CSEMP assessment of arsenic in sediment at Billingham-Bamlett's Bight (Tees)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean112.5514.35-3.286.55
linear2 9.6713.23-0.841.674.878 10.0272
smooth (df = 2)311.6417.89-0.821.640.034 10.8542
smooth (df = 3)413.3723.65-0.681.370.273 10.6010

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920132.4993.4440.94430.38612.4460.0325
last 20 years199920132.4993.4440.94430.38612.4460.0325

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC31.30225.000-0.22481 0.24397-0.9210.8117

 


Raw data with supporting information

Raw data with supporting information for assessment of  arsenic in sediment at Billingham-Bamlett


Raw data with assessment

Raw data with assessment of  arsenic in sediment at Billingham-Bamlett


Assessment plot

Assessment plot for  arsenic in sediment at Billingham-Bamlett


Metals data

Metals data for assessment of  arsenic in sediment at Billingham-Bamlett


Metals assessment

Metals assessment of  arsenic in sediment at Billingham-Bamlett


Related pages

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