Environmental surveillance of commonly-grown vegetables for investigating potential lead and chromium contamination intensification in Bangladesh

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Table 3 Statistics of the data on Cr

Vegetables	Total count of samples analyzed	Contamination found in samples			Samples with safe levels			Samples yielding ND			Median, µg/g dry weight basis	Upper Quartile, µg/g dry weight basis
Vegetables	Total count of samples analyzed	Total count	% of total count of analyzed samples	Maximum level occurred	Total count	% of total count of analyzed samples	Minimum level detected, dry weight basis	Total count	% of total count of analyzed samples	% of total sample count with safe levels	Median, µg/g dry weight basis	Upper Quartile, µg/g dry weight basis
White Potato	50	2	4	305.991 µg in standard 50 g FW	48	96	–	35	70	72.92	2.399	8.004
Green Cabbage	49	0	0	–	49	100	–	41	83.67	83.67	1.1665	2.1363
Red Spinach	61	0	0	–	61	100	–	58	95.08	95.08	0.288	3.593
White Radish	65	0	0	62.9325 µg in standard 50 g FW	65	100	–	59	90.77	90.77	2.3935	12.0765
Green Bean	65	0	0	130.9245 µg in standard 50 g FW	65	100	–	52	80	80	1.388	6.2755
Overall	290							245	84.48		1.637	4.614

ND not detected (at ppb level for 0.2 g dry sample digested into 100 ml volume), FW fresh weight