Table 3.

Frequency and levels of DON and its derivatives of wheat collected in China in 2017 in this study.

Region	Compound		Concentration (µg/kg)					≥1000 µg/kg/%
		n	Range	Mean	P25–P75	Median	Incidence/%
Hebei	DON	114	12.16–230.02	45.80	20.42–49.31	28.6	100	0
	3-ADON		ND1 −11.23	0.28	ND	ND	1.75	0
	15-ADON		ND	0.10	ND	ND	0	0
	DONs		12.16–230.02	46.18	20.42–49.31	28.60	100	0
Xinjiang	DON	59	14.54–6436.11	455.44	26.91–388.99	87.38	100	11.86
	3-ADON		ND	0.10	ND	ND	0	0
	15-ADON		ND	0.10	ND	ND	0	0
	DONs		14.54–6436.11	455.64	26.91–388.99	87.38	100	11.86
Henan	DON	328	12.37–1342.51	60.33	19.71–50.13	27.07	100	0.61
	3-ADON		ND −149.50	1.41	ND	ND	4.88	0
	15-ADON		ND	0.1	ND	ND	0	0
	DONs		12.37–1342.51	61.84	19.86–52.20	29.00	100	0.61
Hubei	DON	11	413.15–5521.20	2670.58	674.72–4637.08	2848.90	100	72.73
	3-ADON		ND−98.12	9.01	ND	ND	9.09	0
	15-ADON		ND−24.46	5.29	ND−13.77	ND	27.27	0
	DONs		413.15–5638.45	2684.87	674.72–4637.08	2848.90	100	72.73
Anhui	DON	29	15.36–2503.08	149.73	21.95–77.51	37.26	100	3.45
	3-ADON		ND−12.28	0.52	ND	ND	3.45	0
	15-ADON		ND	0.10	ND	ND	0	0
	DONs		15.36–2503.08	150.34	21.95–80.64	37.26	100	3.45
Jiangsu	DON	38	17.53–1817.96	270.79	42.96–287.17	99.41	100	7.89
	3-ADON		ND−42.83	2.41	ND	ND	2.63	0
	15-ADON		ND	0.10	ND	ND	0	0
	DONs		17.53–1817.96	273.30	42.96–287.17	102.21	100	7.89

¹ ND-Not detected(<LOD).