Table 4. Element concentrations in different studies.

Comparison of element concentration in sargasso from the Mexican Caribbean coast and other studies in different parts of the world.

Element	Site (Year)
	Nigeriaa (2012)	Dominican Republicb (2015)	Ghanac (2015)	Mexican Caribbeand (2018–2019)
Al		303–4,188		<140–517
As		14–42	13–54	24–172
Ba		7–17		<36
Ca		96,901–133,400		23,723–136,146
Cd		0.1–0.3	78–119	<2
Cl			61–1353	747–53,101
Co		0.4–1		<11
Cr		2–56		<8
Cu		2–12	24–36	<6–540
Fe	8,700 ± 280	20–655	1,209–5,910	<3–11
K	28,000 ± 740	2,208–33,602		1,990–46,002
Mg	42,750 ± 3,500	10,211–18,241		<2915–13,662
Mn		16–32		40–139
Mo		0.6–3		<1–7
Ni		10–33		<10
P	96,500 ± 21,200	761–1,145		228–401
Pb		1–2	105–335	<2–3
Rb		0.3–10		30–143
Si		23,883–55,776		447–2,922
Sr		1,162–1,437		1,605–2,564
Th		0.04–0.4		5–23
Ti		37–92		<29
U		0.2–0.7		11–48
V		1–3		<3–13
Y	40 ± 0.0	0.1–0.8		<1
Zn	50 ± 0.0	13–21	16–100	<5–17
Zr		8–34		<2

Notes.

^aOyesiku & Egunyomi, 2014 (mean and SD).

^bFernández et al., 2017 (range).

^cAddico & De Graft-Johnson, 2016 (range).

^dThis study (range).