Dioxin levels in meat samples of selected free-living and farmed cervids

Fig 1.

Selected parameters of the research method used

Validation characteristic		Validation results
		PCDD/PCDFs	dl-PCBs	ndl-PCBs
Linearity		pg WHO-TEQ/g fat		ng/g fat
	Range	0.10–500.0	0.25–400.0	0.21–800.0
	Relative response rate	0.907–1.142	1.014–1.182	0.974–1.258
Limit of detection		pg/g		ng/g
		0.02	0.40	0.001
Limit of quantification		pg/g		ng/g
		0.05	1.00	0.003
Recovery (%)		60.0–120.0		60.0–120.0
Expanded uncertainty (k = 2) (%)		16.38	16.47	22.67

Levels of dioxins and polychlorinated biphenyls (PCBs) in the muscle tissue of free-living and farmed cervids

		PCDD/PCDFs	dl-PCBs	PCDD/PCDF/dl-PCBs	ndl-PCBs
		(pg WHO-TEQ/g fat)			(ng/g fat)
Free-living cervids (n = 23)	Xavr ± SD	2.53 ± 1.42	2.24 ± 1.58	4.77 ± 2.92	5.69 ± 3.57
	range	0.36–5.55	0.43–5.50	0.79–10.80	1.57–14.75
Farmed cervids (n = 11)	Xavr ± SD	0.79 ± 0.73	1.06 ± 0.72	1.85 ± 1.21	3.10 ± 1.68
	range	0.23–2.50	0.23–2.80	0.53–3.97	1.38–6.51
Maximum levels (Commission Regulation 2023/915 EU)		3.0	-	7.5	-

Theoretical intake of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (dl-PCBs) (expressed as a percentage of the tolerable weekly intake – TWI) by adults and children with muscle tissue from free-living and farmed cervids based on mean and 97_5th percentile (P97_5) values of results

		PCDD/F/dl-PCBs pg WHO-TEQ/g wet weight	Intake (% TWI)
			Occasionally		Frequent		Very common
			Adult	Child	Adult	Child	Adult	Child
Free-living cervids	Xavr	0.34	1.89	2.87	11.0	17.0	84.0	127.0
	P97.5	0.54	2.94	4.62	18.0	27.0	133.0	202.0
Farmed cervids	Xavr	0.09	0.52	0.78	2.0	3.0	23.0	35.0
	P97.5	0.26	1.45	2.20	9.0	13.0	65.0	99.0