Table 3.

Comparison of MT emission data between different studies.

Order	Sample Type	Sampling and Pretreatmenta	Detector (GC)	Unit	Compounds										Reference
					α-PN	CMP	β-PN	3-CN	MRC	α-PD	α-TP	R-LN	γ-TP	p-CM	No b
A. Vegetable (Carrot)
1	Carrot (D. carota) (CA) c	ST/TD	MS	µg/L of HS	2.85	0.44	0.77	- d	0.68	0.04	0.05	0.86	1.80	0.28	This study
				µg/g	0.71	0.11	0.19	-	0.17	0.01	0.01	0.22	0.45	0.07
				µg/g/h e	17.1	2.66	4.64	-	4.08	0.26	0.27	5.17	10.8	1.69
2	Carrot (7 varieties)	SHA	MS	µg/L of HS	0.6–11	0.01–0.08	0.2–1.2		0.6–98	0.2–0.8	0.02–0.2	0.6–9.0	1.1–10	0.03–0.7	1
3	Carrot (Imperator-1)	HS/DI	FID	µg/g	0.22	-	0.43	-	0.66	-	-	-	0.35	-	2
4	Carrot (Imperator-2)	HS/DI	FID	µg/g	0.66	-	0.84	-	0.97	-	-	1.22	1.07	-	2
5	Carrot (Gold Pak)	HS/DI	FID	µg/g	3.02	-	0.16	-	0.36	-	-	0.41	0.65	-	2
6	Carrot (Danvers-1)	HS/DI	FID	µg/g	0.08	-	0.05	-	0.05	-	-	0.07	0.11	-	2
7	Carrot (Danvers-2)	HS/DI	FID	µg/g	0.16	-	0.05	-	0.07	-	-	0.11	0.01	-	2
8	Carrot (Nantes)	HS/DI	FID	µg/g	0.80	-	0.11	-	0.05	-	-	0.03	0.09	-	2
9	Carrot (Brasilia)	HS/LVI	MS	µg/g/h	0.06	0.003	0.01	-	0.04	-	0.002	0.03	0.12	0.11	3
10	Carrot (Duke)	HS/LVI	MS	µg/g/h	0.10	0.003	0.02	-	0.03	-	0.002	0.02	0.06	0.07	3
11	Carrot (Fancy)	HS/LVI	MS	µg/g/h	0.18	0.01	0.04	-	0.17	-	0.003	0.04	0.17	0.23	3
12	Carrot (Cortez)	HS/LVI	MS	µg/g/h	0.06	-	0.02	-	0.12	-	0.004	0.03	0.12	0.07	3
B. Plants
13	Pine needle (PN) c	ST/TD	MS	µg/L of HS	2.36	0.51	1.72	-	4.59	0.19	1.7	3.45	0.06	0.02	This study
				µg/g	0.59	0.13	0.43	-	1.15	0.05	0.42	0.86	0.02	0.004
				µg/g/h	14.1	3.06	10.3	-	27.6	1.17	10.2	20.7	0.38	0.09
14	Fresh Pine needle	LBC/DI	MS	µg/g	2398	523	258	758	170	-	-	204	-	-	4
15	Mixed grasses	BE/DI	FID	µg/m2/h	30.0	-	5.00	1	-	-	-	-	-	-	5 & 6
16	Bermuda grass	BE/DI	FID	µg/m2/h	2.00	-	-	6	-	-	-	-	-	-	5 & 6
17	pensacola grass	BE/DI	FID	µg/m2/h	7.00	-	2.00	-	-	-	-	-	-	-	5 & 6
18	Sawgrass	BE/DI	FID	µg/m2/h	62.0	-	10.0	-	-	-	-	-	-	-	5 & 6
19	P. hortorum leaf	MHS	MS	µg/m2	1.88	1.71	4.18	-	30.4	-	-	1.53	-	-	7
20	P. hortorum leaf	IMHS	MS	µg/m2	2.00	1.59	4.12	-	38.5	-	-	2.53	-	-	7
21	P. hortorum leaf	DHS	MS	µg/m2	2.35	1.82	4.65	-	41.6	-	-	3.00	-	-	7
C. Fruit (beverages)
22	Orange juice (OJ) c	ST/TD	MS	µg/L of HS	0.02	0.003	-	0.02	0.62	0.02	0.04	17.9	0.04	-	This study
				µg/g or µg/mL	0.004	0.001	-	0.005	0.15	0.005	0.01	4.47	0.01	-
				µg/g/h	0.11	0.02	-	0.11	3.71	0.11	0.21	107	0.25	-
23	Orange juice	SPME	FID	µg/L of HS	0.04	-	-	-	-	-	-	239	1.40	-	8
24	Orange wine	LLE	OL f	µg/L	-	-	-	-	-	-	-	430	11.0	5.20	9

^aAbbreviation: LVI-Large volume injection; HS-Headspace; DI-Direct injection; SPME-Solid phase microextraction; LLE-Liquid liquid extraction; LBC-Litter bag collection; BE-Bag enclosure; MHS-multiple headspace SPME IMHS-internal standard added multiple SPME; and DHS-dynamic headspace sampling;

^b(1) [22]; (2) [23]; (3) [21]; (4) [24] (5 & 6) [25,27]; (7) [26]; (8) [28]; (9) [29];

^cSample mass placed on impinger: 1 g;

^dNot detected;

^eEmission flux = [(emission rate / sampling volume) × flow rate (0.1 L min⁻¹)];

^fOlfactometry.