常見魚類, 貝類的含汞量 (ZT)

FDA 認為除孕婦，奶媽和兒童外，每周吃 14 ounces 含水銀平均在 0.5 和低於 0.5 ppm 的魚和貝類 (Fresh or frozen tuna, Orange roughy, Mahi mahi, Herring, Halibut, Grouper, Catfish, Cod, fresh or frozen Salmon, Canned tuna, Pollock, Flounder or sole etc) ，其中的水銀對健康沒有影響。

孕婦，奶媽和兒童每周可以吃 12 ounces (about 3 to 4 servings) 含水銀遠低於 1 ppm 的魚和貝類。

Table 1. Fish and Shellfish With Highest Levels of Mercury

SPECIES	MERCURY CONCENTRATION (PPM)
	MEAN	MEDIAN	STDEV	MIN	MAX
MACKEREL KING	0.730	N/A	N/A	0.230	1.670
SHARK	0.988	0.830	0.631	ND	4.540
SWORDFISH	0.976	0.860	0.510	ND	3.220
TILEFISH ( Gulf of Mexico )	1.450	N/A	N/A	0.650	3.730
Table 2. Fish and Shellfish With Lower Levels of Mercury

SPECIES	MERCURY CONCENTRATION (PPM)
	MEAN	MEDIAN	STDEV	MIN	MAX
ANCHOVIES	0.043	N/A	N/A	ND	0.340
BUTTERFISH	0.058	N/A	N/A	ND	0.360
CATFISH	0.049	ND	0.084	ND	0.314
CLAM *	ND	ND	ND	ND	ND
COD	0.095	0.087	0.080	ND	0.420
CRAB 1	0.060	0.030	0.112	ND	0.610
CRAWFISH	0.033	0.035	0.012	ND	0.051
CROAKER ATLANTIC (Atlantic)	0.072	0.073	0.036	0.013	0.148
FLATFISH 2*	0.045	0.035	0.049	ND	0.180
HADDOCK ( Atlantic )	0.031	0.041	0.021	ND	0.041
HAKE	0.014	ND	0.021	ND	0.048
HERRING	0.044	N/A	N/A	ND	0.135
JACKSMELT	0.108	0.060	0.115	0.040	0.500
LOBSTER (Spiny)	0.09	0.14	‡	ND	0.27
MACKEREL ATLANTIC (N.Atlantic)	0.050	N/A	N/A	0.020	0.160
MACKEREL CHUB (Pacific)	0.088	N/A	N/A	0.030	0.190
MULLET	0.046	N/A	N/A	ND	0.130
OYSTER	0.013	ND	0.042	ND	0.250
PERCH OCEAN *	ND	ND	ND	ND	0.030
POLLOCK	0.041	ND	0.106	ND	0.780
SALMON (CANNED) *	ND	ND	ND	ND	ND
SALMON (FRESH/FROZEN) *	0.014	ND	0.041	ND	0.190
SARDINE	0.016	0.013	0.007	0.004	0.035
SCALLOP	0.050	N/A	N/A	ND	0.220
SHAD AMERICAN	0.065	N/A	N/A	ND	0.220
SHRIMP *	ND	ND	ND	ND	0.050
SQUID	0.070	N/A	N/A	ND	0.400
TILAPIA *	0.010	ND	0.023	ND	0.070
TROUT (FRESHWATER)	0.072	0.025	0.143	ND	0.678
TUNA (CANNED, LIGHT)	0.118	0.075	0.119	ND	0.852
WHITEFISH	0.069	0.054	0.067	ND	0.310
WHITING	ND	ND	‡	ND	ND
Table 3. Mercury Levels of Other Fish and Shellfish

SPECIES	MERCURY CONCENTRATION (PPM)
	MEAN	MEDIAN	STDEV	MIN	MAX
BASS (SALTWATER, BLACK, STRIPED)3	0.219	0.130	0.227	ND	0.960
BASS CHILEAN	0.386	0.303	0.364	0.085	2.180
BLUEFISH	0.337	0.303	0.127	0.139	0.634
BUFFALOFISH	0.19	0.14	‡	0.05	0.43
CARP	0.14	0.14	‡	0.01	0.27
CROAKER WHITE (Pacific)	0.287	0.280	0.069	0.180	0.410
GROUPER (ALL SPECIES)	0.465	0.410	0.293	0.053	1.205
HALIBUT	0.252	0.200	0.233	ND	1.520
LOBSTER (NORTHERN/AMERICAN)	0.310	N/A	N/A	0.050	1.310
LOBSTER (Species Unknown)	0.169	0.182	0.089	ND	0.309
MACKEREL SPANISH ( Gulf of Mexico )	0.454	N/A	N/A	0.070	1.560
MACKEREL SPANISH ( S. Atlantic )	0.182	N/A	N/A	0.050	0.730
MARLIN *	0.485	0.390	0.237	0.100	0.920
MONKFISH	0.180	N/A	N/A	0.020	1.020
ORANGE ROUGHY	0.554	0.563	0.148	0.296	0.855
PERCH (Freshwater)	0.14	0.15	‡	ND	0.31
SABLEFISH	0.220	N/A	N/A	ND	0.700
SCORPIONFISH	0.286	N/A	N/A	0.020	1.345
SHEEPSHEAD	0.128	N/A	N/A	0.020	0.625
SKATE	0.137	N/A	N/A	0.040	0.360
SNAPPER	0.189	0.114	0.274	ND	1.366
TILEFISH ( Atlantic )	0.144	0.099	0.122	0.042	0.533
TUNA (CANNED, ALBACORE)	0.353	0.339	0.126	ND	0.853
TUNA(FRESH/FROZEN, ALL)	0.383	0.322	0.269	ND	1.300
TUNA (FRESH/FROZEN, ALBACORE)	0.357	0.355	0.152	ND	0.820
TUNA (FRESH/FROZEN, BIGEYE)	0.639	0.560	0.184	0.410	1.040
TUNA (FRESH/FROZEN, SKIPJACK)	0.205	N/A	0.078	0.205	0.260
TUNA (FRESH/FROZEN, YELLOWFIN)	0.325	0.270	0.220	ND	1.079
TUNA (FRESH/FROZEN, Species Unknown)	0.414	0.339	0.316	ND	1.300
WEAKFISH (SEA TROUT)	0.256	0.168	0.226	ND	0.744

Source of data: FDA 1990-2004, "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

Mercury was measured as Total Mercury except for species (*) when only Methylmercury was analyzed.

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
• Pickerel – not commercial

‡ Standard deviation data generated for new data 2004 or later only.

¹ Includes: Blue, King, Snow
²Includes: Flounder, Plaice, Sole
³Includes: Sea bass/ Striped Bass/ 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.

http://www.cfsan.fda.gov/~frf/sea-mehg.html