Fig. 3From: Potentially toxic element (PTE) levels in maize, soil, and irrigation water and health risks through maize consumption in northern Ningxia, ChinaProbability exceeding 1 of HI (a: below 20 years, b: 20–40 years, c: 40–60 years, d: more than 60 years). About 2.07, 0.28, 0.53 and 0.04% of inhabitants had HI values greater than 1 for a, b, c, and d, respectivelyBack to article page