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Table 1 Correlation coefficients for mercury and selected parameters

From: Mercury Dynamics in a San Francisco Estuary Tidal Wetland: Assessing Dynamics Using In Situ Measurements

  All samples Spring main channel samples
UTHg UTHg FTHg PTHg
n = 55 n = 13 n = 13 n = 13
UTHg −0.33 0.99
FTHg nd −0.33 −0.42
PTHg nd 0.99 −0.42
UMeHg 0.50 0.71 −0.23 0.70
FMeHg 0.18 −0.41 0.79 −0.48
PMeHg 0.56 0.79 −0.59 0.82
DOC 0.11 −0.31 0.75 −0.37
POC 0.75 0.98 −0.33 0.98
NO3 0.29 −0.72 0.31 0.37
SSC 0.88 0.98 −0.38 0.98
Turbidity 0.88 0.97 −0.41 0.97
FDOM 0.13 −0.30 0.75 −0.37
DO 0.10 0.07 −0.62 0.13
  1. Entries shown in bold are significant at P < 0.001. Methylmercury data are from Bergamaschi et al. (2011)
  2. UTHg total mercury concentration in unfiltered water samples; FTHg concentration of total mercury in filter-passing fraction; PTHg particulate mercury concentration, calculated as the difference between the total Hg in unfiltered and filter-passing fractions. FMeHg concentration of methyl mercury in filter-passing sample; UMeHg methyl mercury concentration in unfiltered samples; PMeHg concentration of particulate methyl mercury, calculated as the difference between UMeHg and FMeHg. DOC dissolved organic carbon concentration; POC particulate organic matter concentration as carbon. SSC suspended sediment concentration. FDOM fluorescent dissolved organic matter. DO dissolved oxygen concentration