Analysis of metals and metalloids present in Sri Lankan dried seaweeds and assessing the possibility of health impact to general consumption patterns

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Table 6

Hazard index for sample seaweed classes from identified areas of Sri Lanka.

Seaweed	Site	South Western Monsoon	North Eastern Monsoon
		HI
Chlorophyta	01	0.88	0.65
	02	0.98	0.71
	03	2.19	2.29
	04	2.51	1.18
Rhodophyta	01	0.92	1.37
	02	1.11	1.28
	03	2.06	2.14
	04	2.33	1.93
Phaeophyta	01	0.70	1.01
	02	0.85	1.25
	03	1.84	1.92
	04	2.27	1.16

RfD values of each element were 0.3, 40, 3, 20, and 1 μg per kg body weight per day for As, Cu, Cr, Ni and Cd respectively. Recommended RfD values are with reference to USEPA and mean levels of the metals were used for calculations.

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