Food

Mercury Levels in Commercial Fish and Shellfish (1990-2012)

Mercury and Methylmercury Main Page

See also Mercury Concentrations in Fish: FDA Monitoring Program


The table is sorted by MERCURY CONCENTRATION MEAN (PPM) from fish with lowest levels of mercury to highest levels of mercury. You may also sort the table by SPECIES in alphabetical order. 

SPECIESMERCURY CONCENTRATION
MEAN (PPM)
MERCURY CONCENTRATION
MEDIAN (PPM)
MERCURY CONCENTRATION
STDEV (PPM)
MERCURY CONCENTRATION
MIN (PPM)
MERCURY CONCENTRATION 
MAX (PPM)
NO. OF SAMPLESSOURCE OF DATA
SCALLOP0.003ND0.007ND0.03339FDA 1991-2009
CLAM0.0090.0020.011ND0.02815FDA 1991-2010
SHRIMP0.0090.0010.013ND0.0540FDA 1991-2009
OYSTER0.012ND0.035ND0.2561FDA 1991-2009
SARDINE0.0130.0100.015ND0.08390FDA 2002-2010
TILAPIA0.0130.0040.023ND0.08432FDA 1991-2008
SALMON (CANNED)0.0140.0100.021ND0.08619FDA 1993-2009
ANCHOVIES0.0160.0110.015ND0.04915FDA 2007-2009
SALMON (FRESH/FROZEN)0.0220.0150.034ND0.1994FDA 1991-2009
CATFISH0.0240.0050.056ND0.31459FDA 1991-2010
SQUID0.0240.0170.023ND0.0736FDA 2005-2009
POLLOCK0.0310.0030.089ND0.7895FDA 1991-2008
CRAWFISH0.0330.0350.012ND0.05146FDA 1991-2007
SHAD0.0380.0330.045ND0.18615FDA 2007-2011
MACKEREL ATLANTIC (N.Atlantic)0.05N/AN/A0.020.1680NMFS REPORT 1978
MULLET0.0500.0140.078ND0.2720FDA 1991-2008
WHITING0.0510.0520.030ND0.09613FDA 1991-2008
HADDOCK (Atlantic)0.0550.0490.033ND0.19750FDA 1991-2009
FLATFISH [2]0.0560.050.045ND0.21871FDA 1991-2009
BUTTERFISH0.058N/AN/AND0.3689NMFS REPORT 1978
CRAB [1]0.0650.050.096ND0.6193FDA 1991-2009
CROAKER ATLANTIC (Atlantic)0.0690.060.049ND0.19390FDA 2002-2011
TROUT (FRESHWATER)0.0710.0250.141ND0.67835FDA 1991-2008
HERRING0.0780.0420.128ND0.5627FDA 2005-2012
HAKE0.0790.0670.064ND0.37849FDA 1994-2009
JACKSMELT0.0810.050.1030.0110.523FDA 1997-2007
MACKEREL CHUB (Pacific)0.088N/AN/A0.030.1930NMFS REPORT 1978
WHITEFISH0.0890.0670.084ND0.31737FDA 1991-2008
SHEEPSHEAD0.0900.080.050ND0.178FDA 1992-2007
LOBSTER (Spiny)0.0930.0620.097ND0.2713FDA 1991-2005
PICKEREL0.0950.0910.100ND0.3116FDA 1991-2007
LOBSTER (NORTHERN / AMERICAN)0.1070.0860.076ND0.239FDA 2005-2007
CARP0.1100.1340.237ND0.27114FDA 1992-2007
COD0.1110.0660.152ND0.989115FDA 1991-2010
PERCH OCEAN0.1210.1020.125ND0.57831FDA 1991-2010
TUNA (CANNED, LIGHT)0.1260.0770.134ND0.889545FDA 1991-2010
BUFFALOFISH0.1370.120.0940.0320.4317FDA 1992-2008
SKATE0.137N/AN/A0.040.3656NMFS REPORT 1978
TILEFISH (Atlantic)0.1440.0990.1220.0420.53332FDA 1994-2004
TUNA (FRESH/FROZEN, SKIPJACK)0.1440.150.1190.0220.263FDA 1993-2007
PERCH (Freshwater)0.1500.1460.112ND0.32519FDA 1991-2007
MONKFISH0.1610.1390.095ND0.28911FDA 1994-2007
LOBSTER (Species Unknown)0.1660.1430.099ND0.45171FDA 1991-2008
SNAPPER0.1660.1130.244ND1.36667FDA 1991-2007
BASS (SALTWATER, BLACK, STRIPED, ROCKFISH) [3]0.1670.0940.194ND0.96101FDA 1991-2010
MAHI MAHI0.1780.180.103ND0.4529FDA 1991-2005
MACKEREL SPANISH (S. Atlantic)0.182N/AN/A0.050.7343NMFS REPORT 1978
SCORPIONFISH0.2330.1810.1390.0980.4566FDA 2006-2007
WEAKFISH (SEA TROUT)0.2350.1570.216ND0.74446FDA 1991-2005
HALIBUT0.2410.1880.225ND1.52101FDA 1992-2009
CROAKER WHITE (Pacific)0.2870.280.0690.180.4115FDA 1997
TUNA (CANNED, ALBACORE)0.3500.3380.128ND0.853451FDA 1991-2009
BASS CHILEAN0.3540.3030.299ND2.1874FDA 1994-2010
TUNA (FRESH/FROZEN, YELLOWFIN)0.3540.3110.231ND1.478231FDA 1993-2010
TUNA (FRESH/FROZEN, ALBACORE)0.3580.360.138ND0.8243FDA 1992-2008
SABLEFISH0.3610.2650.2410.091.05226FDA 2004-2009
BLUEFISH0.3680.3050.2210.0891.45294FDA 1991-2009
TUNA (FRESH/FROZEN, ALL)0.3860.340.265ND1.816420FDA 1991-2010
TUNA (FRESH/FROZEN, Species Unknown)0.4100.3340.308ND1.3122FDA 1991-2010
GROUPER (ALL SPECIES)0.4480.3990.2780.0061.20553FDA 1991-2005
MACKEREL SPANISH (Gulf of Mexico)0.454N/AN/A0.071.5666NMFS REPORT 1978
MARLIN0.4850.390.2370.10.9216FDA 1992-1996
ORANGE ROUGHY0.5710.5620.1830.2651.1281FDA 1991-2009
TUNA (FRESH/FROZEN, BIGEYE)0.6890.560.3410.1281.81621FDA 1993-2005
MACKEREL KING0.73N/AN/A0.231.67213GULF OF MEXICO REPORT 2000
SHARK0.9790.8110.626ND4.54356FDA 1991-2007
SWORDFISH0.9950.870.539ND3.22636FDA 1990-2010
TILEFISH (Gulf of Mexico)1.123N/AN/A0.653.7360NMFS REPORT 1978
 

Source of data: FDA 1990-2012 , "National Marine Fisheries Service Survey of Trace Elements in the Fishery Resource" Report 1978, "The Occurrence of Mercury in the Fishery Resources of the Gulf of Mexico" Report 2000

ND-mercury concentration below detection level (Level of Detection (LOD)=0.01ppm)
N/A-data not available

The following species have been removed from the tables:

  • Bass (freshwater) – not commercial

‡Standard deviation data generated from data 1990 to 2012.

1Includes: Blue, King, Snow
2Includes: Flounder, Plaice, Sole
3Includes: Sea bass (black, Striped), Rockfish

NOTE: On February 8, 2006, technical changes were made to the data that was posted on January 19, 2006. The changes corrected data or more properly characterized the species of fish or shellfish sampled. On October 6, 2014, technical changes were made to allow viewers to review the list in order of mercury levels and in alphabetical order by fish species.


Mercury Concentrations in Fish: FDA Monitoring Program

Page Last Updated: 01/18/2017
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