Health risk assessments of arsenic and toxic heavy metal exposure in drinking water in northeast Iran

Alidadi, Hosein; Tavakoly Sany, Seyedeh Belin; Zarif Garaati Oftadeh, Batoul; Mohamad, Tafaghodi; Shamszade, Hosein; Fakhari, Maryam

doi:10.1186/s12199-019-0812-x

Environmental Health and Preventive Medicine

Table 4 Descriptive statistics of estimated average daily dose (ADD) of heavy metals for adults and children through dermal intake of drinking water

From: Health risk assessments of arsenic and toxic heavy metal exposure in drinking water in northeast Iran

Sites/stations (n = 140)		ADD of individuals heavy metals (μg kg⁻¹ day⁻¹)
Sites/stations (n = 140)		As		Hg		Pb		Cr		Ni
		Adult	Child	Adult	Child	Adult	Child	Adult	Child	Adult	Child
North	1	0.001	0.005	ND	ND	0.006	0.029	0.003	0.015	0.009	0.043
	2	0.001	0.005	ND	ND	0.003	0.015	0.004	0.020	0.006	0.032
	3	0.001	0.004	ND	ND	0.005	0.025	0.007	0.034	0.023	0.112
	4	0.002	0.009	ND	ND	0.008	0.037	0.043	0.211	0.009	0.043
	5	0.001	0.005	ND	ND	0.003	0.017	0.019	0.095	0.011	0.054
	6	0.002	0.009	ND	ND	0.005	0.025	0.026	0.128	0.013	0.066
	7	0.001	0.007	ND	ND	0.003	0.013	0.126	0.618	0.003	0.016
South	8	0.001	0.006	ND	ND	0.003	0.013	0.003	0.013	0.006	0.028
	9	0.001	0.003	ND	ND	0.004	0.018	0.004	0.019	0.003	0.014
	10	0.001	0.007	ND	ND	0.003	0.017	0.027	0.134	0.008	0.038
	11	0.002	0.007	ND	ND	0.003	0.013	0.059	0.289	0.001	0.006
	12	0.001	0.006	ND	ND	0.002	0.011	0.059	0.289	0.009	0.044
	13	0.001	0.005	ND	ND	0.004	0.021	0.046	0.224	0.009	0.046
	14	0.001	0.006	ND	ND	0.003	0.014	0.073	0.357	0.003	0.013
East	15	0.001	0.004	ND	ND	0.002	0.012	0.005	0.024	0.002	0.010
	16	0.001	0.007	ND	ND	0.004	0.018	0.080	0.391	0.002	0.008
	17	0.001	0.004	ND	ND	0.003	0.013	0.166	0.814	0.012	0.060
	18	0.002	0.010	ND	ND	0.004	0.022	0.003	0.016	0.013	0.064
	19	0.002	0.007	ND	ND	0.004	0.017	0.004	0.020	0.002	0.012
	20	0.001	0.005	ND	ND	0.004	0.020	0.004	0.021	0.004	0.020
	21	0.001	0.006	ND	ND	0.005	0.026	0.030	0.146	0.006	0.030
West	22	0.001	0.006	0.001	0.007	0.004	0.019	0.017	0.085	0.012	0.060
	23	0.003	0.014	ND	ND	0.009	0.047	0.045	0.222	0.094	0.460
	24	0.001	0.006	ND	ND	0.002	0.011	0.054	0.263	0.003	0.014
	25	0.001	0.006	ND	ND	0.004	0.022	0.002	0.011	0.022	0.107
	26	0.002	0.008	ND	ND	0.004	0.019	0.008	0.041	0.021	0.104
	27	0.002	0.008	ND	ND	0.005	0.022	0.032	0.156	0.010	0.049
	28	0.001	0.007	ND	ND	0.005	0.026	0.040	0.195	0.018	0.086
Center	29	0.002	0.008	ND	ND	0.004	0.018	0.029	0.143	0.011	0.052
	30	0.001	0.007	ND	ND	0.004	0.019	0.018	0.088	0.008	0.040
	31	0.001	0.005	ND	ND	0.004	0.020	0.011	0.056	0.011	0.053
	32	0.001	0.006	0.001	0.007	0.004	0.020	0.056	0.276	0.007	0.033
	33	0.001	0.005	ND	ND	0.003	0.016	0.010	0.050	0.011	0.056
	34	0.001	0.007	0.001	0.004	0.006	0.028	0.139	0.683	0.026	0.127
	35	0.001	0.005	ND	ND	0.005	0.022	0.003	0.014	0.008	0.042
Mean		0.001	0.006	0.0009	0.001	0.004	0.020	0.036	0.176	0.012	0.058
Standard deviation		0.00021	0.002	0.00083	0.002	0.001	0.007	0.040	0.195	0.015	0.075

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