Potentially Toxic Elements and Health Risk Assessment in Farmland Systems around High-Concentrated Arsenic Coal Mining in Xingren, China

Table 4

Noncarcinogenic risk (TTHQ, HI) and carcinogenic risk (TCR, TTCR) of PTEs due to food crop consumption in the Xingren mine affected area.

Health risk assessment		Crop types
		Vegetable	Rice	Coix seed	Maize
Noncarcinogenic risk	TTHQ	7.78	3.00	2.7	1.33
	HI	14.81
Carcinogenic risk	TCR	2.40 × 10^−3	1.16 × 10^−3	9.14 × 10^−4	4.57 × 10^−4
	TTCR	5.3 × 10^−3

Note. TTHQ: sum of individual metal THQs (target hazard quotient); HI: sum of individual crop TTHQ; TCR: sum of individual metal CR; TTCR: sum of individual crop TCR.