Environmental Systems Research

Table 1 Arsenic concentration distribution for 100 tube wells based on Bangladesh, WHO, and JECFA drinking water quality recommendations

From: Spatial pattern of arsenic concentration and associated noncarcinogenic health risk assessment: a case study on Gangni Union of Chuadanga district of Bangladesh

	Category	N (%)	Mean	Min	Max	Median	IQR
Arsenic (mg/l)	Minimal (0–< 0.01^a)	37 (37%)	0.006	0.0004	0.01	0.004	0.001,0.01
	Elevated (0.01–0.05^b)	42 (42%)	0.03	0.02	0.05	0.03	0.03,0.05
	High (> 0.05^c)	21 (21%)	0.08	0.06	0.1	0.08	0.07,0.09

Drinking water standard for ^aWHO health-based value 0.01 mg/l (WHO 2011); ^bJECFA’s proposed daily consumption limit for Arsenic in water 0.01–0.005 mg/l (World Health Organization 2004; World Health Organization 2011); ^cBangladesh health-based value 0.05 mg/l (World Health Organization 2011)

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