Table 3.

Total mercury levels (μg/g, wet weight) in seafood and canned tuna collected from n=26 vendors in Mexico City in 2011. Many of the samples exceed the U.S. Environmental Protection Agency's safe consumption level of 0.3 μg/g wet weight.

		n	Mean	SD	Min	Median	Max
Seafood	Mojarra (Sunfish)	17	0.027	0.029	0.001	0.019	0.085
	Cazón (School Shark)	10	1.557	0.632	0.458	1.600	2.491
	Huachinango (Red Snapper)	10	0.449	0.482	0.028	0.199	1.319
	Sierra (Spanish Mackerel)	7	0.151	0.119	0.042	0.078	0.313
	Tiburon (Shark)	4	1.658	0.611	0.868	1.764	2.236
	Robalo (Sea Bass)	4	0.127	0.058	0.101	0.116	0.174
	Basa oriental (Catfish)	2	0.003		0.003		0.003
	Cintilla	2	0.049		0.048		0.050
	Atun (Tuna)	2	0.109		0.096		0.119
	Salmon	2	0.017		0.012		0.022
	Mero (Grouper)	2	0.764		0.703		0.825
	Lenguado (Flounder)	2	0.062		0.026		0.099
	Esmedregal (Cobia)	1	0.637
	Jurel	1	0.426
	Bagre (Catfish)	1	0.344
	Bandera	1	0.196
	Carpa (Carp)	1	0.003
	Perdillo	1	0.038
	Calamar (Squid)	5	0.044	0.054	0.006	0.030	0.138
	Camaron (Shrimp)	8	0.010	0.003	0.007	0.009	0.016
	Jaiva (Crab)	3	0.047	0.014	0.031	0.054	0.057
	Rojo (Crab)	3	0.003	0.001	0.003	0.004	0.004
	Pulpo (Octopus)	2	0.014		0.009		0.018
Canned Tuna	Brand #1	5	0.405	0.089	0.252	0.400	0.520
	Brand #2	5	0.015	0.003	0.011	0.016	0.019
	Brand #3	5	0.700	0.390	0.238	0.807	1.187
	Brand #4	5	0.676	0.418	0.147	0.741	1.334
	Brand #5	5	0.283	0.151	0.096	0.299	0.471
	Brand #6	3	0.346	0.297	0.134	0.139	0.766
	Brand #7	3	0.514	0.186	0.263	0.571	0.707
	Brand #8	3	0.084	0.048	0.017	0.114	0.122
	Brand #9	1	0.092