
Figure 1.
Cigar products tested. Samples are ordered from top to bottom in the photograph as Sample A, Sample B, Sample C, Sample D, Sample E, and Sample F.
Table 1.
Sample information and nominal physical parameters values.
| Study ID | Product Type | Circumference (mm) | Diameter (mm) | Length (mm) | Weight (g) | Features of note |
|---|---|---|---|---|---|---|
| A | Large filter cigar | 22 | 7 | 99 | with filter: 1.29 | Filtered |
| B | Small cigar | 25 | 8 | 99 | 2.57 | Irregular lighting end |
| C | Cigarillo | 25 | 8 | 114 | 2.87 | Tapered mouth-end |
| D | Wood-tipped cigar | 28 | 9 | with tip: 120 | with tip: 3.90 | Non-cylindrical wooden mouth-piece |
| without tip: 100 | without tip: 2.33 | |||||
| E | Hand-made cigar | 65 | 20.7 | 127 | 14.5 | Closed mouth-end, requires cutting |
| F | Hand-made cigar | 73 | 23 | 152 | 18.5 | Closed mouth-end, requires cutting |
Table 2.
Summary of physical parameters results. Data are displayed as mean ± one standard deviation (% RSD); n = 20.
| Lab | A | B | C | D | E | F | LPR b |
|---|---|---|---|---|---|---|---|
| Conditioned cigar weight (g/cigar) | |||||||
| 1 | 1.36 ± 0.02 (1) | 2.69 ± 0.17 (6) | 2.97 ± 0.23 (8) | 3.91 ± 0.27 (7) | 13.87 ± 1.24 (9) | 18.05 ± 0.60 (3) | 234% |
| 2 | 1.37 ± 0.02 (2) | 2.68 ± 0.10 (4) | 3.04 ± 0.25 (8) | 3.93 ± 0.27 (7) | 13.58 ± 1.06 (8) | 19.27 ± 1.14 (6) | 245% |
| 3 | 1.37 ± 0.02 (1) | 2.72 ± 0.16 (6) | 2.98 ± 0.28 (10) | 3.92 ± 0.34 (9) | 13.89 | 18.20 | 234% |
| LR a | 1% | 1% | 2% | 1% | 2% | 7% | |
| Conditioned tobacco weight (g/cigar) | |||||||
| 1 | 0.98 ± 0.02 (2) | 2.19 ± 0.10 (5) | 2.55 ± 0.22 (8) | 2.22 ± 0.23 (11) | 13.55 ± 1.25 (9) | 17.62 ± 0.59 (3) | 255% |
| 2 | 0.97 ± 0.02 (2) | 2.22 ± 0.08 (4) | 2.59 ± 0.25 (10) | 2.23 ± 0.26 (12) | 13.39 ± 1.38 (10) | 18.80 ± 1.18 (6) | 266% |
| 3 | NR | NR | NR | NR | 13.89 | 18.20 | NC |
| LR | 1% | 1% | 2% | 0% | 4% | 6% | |
| Length (mm) | |||||||
| 1 | 98.3 ± 0.2 (0.2) | 98.5 ± 1.2 (1.2) | 113.7 ± 0.3 (0.3) | 121.4 ± 0.5 (0.4) | 127.0 ± 0.4 (0.3) | 151.6 ± 0.5 (0.4) | 45% |
| 2 | 98.7 ± 0.2 (0.2) | 102.5 ± 1.3 (1.3) | 112.8 ± 0.2 (0.2) | 121.5 ± 0.5 (0.4) | 126.2 ± 0.6 (0.5) | 152.2 ± 0.7 (0.5) | 45% |
| 3 | 98.9 ± 0.3 (0.3) | 99.4 ± 0.8 (0.8) | 103.2 ± 0.5 (0.5) | 121.3 ± 0.5 (0.4) | 120.7 | 141.1 | 37% |
| LR | 1% | 4% | 10% | 0% | 5% | 7% | |
| Diameter (mm) | |||||||
| 1 | 7.70 ± 0.02 (0.3) | 9.93 ± 0.14 (1.5) | 10.63 ± 0.04 (0.4) | 11.35 ± 0.05 (0.4) | 19.79 ± 0.44 (2.2) | 20.97 ± 0.37 (1.8) | 99% |
| 2 | 7.82 ± 0.02 (0.3) | 10.38 ± 0.21 (2.0) | 10.67 ± 0.14 (1.3) | 11.59 ± 0.06 (0.5) | 20.07 ± 0.35 (1.7) | 21.56 ± 0.27 (1.3) | 100% |
| 3 | 7.82 ± 0.06 (0.7) | 11.17 ± 0.34 (3.1) | 10.65 ± 0.18 (1.7) | 11.17 ± 0.25 (2.3) | 20.03 | 21.29 | 98% |
| LR | 2% | 12% | 0% | 4% | 1% | 3% | |
| Pressure drop (mm H2O) | |||||||
| 1 | 260.7 ± 13.8 (5) | 104.7 ± 29.1 (28) | 127.3 ± 30.8 (24) | 96.3 ± 41.5 (43) | 37.4 ± 11.2 (30) | 37.9 ± 11.6 (31) | 202% |
| 2 | 266.6 ± 17.0 (6) | 87.0 ± 21.8 (25) | 155.6 ± 50.7 (33) | 85.7 ± 29.0 (34) | 47.4 ± 14.3 (30) | 33.0 ± 7.0 (21) | 208% |
| 3 | 287.6 ± 14.0 (5) | 107.7 ± 26.8 (25) | 134.2 ± 53.9 (40) | 86.6 ± 28.4 (33) | 52.3 | 35.9 | 214% |
| LR | 10% | 21% | 20% | 12% | 33% | 14% | |

Figure 2.
Lab comparison: Pressure drop average of 7 replicates for each sample from three different labs. Error bars, if shown, are 3 × standard deviation.
Table 3.
Summary of tobacco testing results. Data are displayed as mean ± one standard deviation (% RSD); DWB = dry weight basis; n = 7.
| Lab | A | B | C | D | E | F | LPR b |
|---|---|---|---|---|---|---|---|
| Nicotine DWB (µg/g) | |||||||
| 1 | 11065 ± 382 (3.5) | 22419 ± 642 (2.9) | 8336 ± 184 (2.2) | 9742 ± 391 (4.0) | 23666 ± 938 (4.0) | 29138 ± 1042 (3.6) | 120% |
| 2 | 12858 ± 596 (4.6) | 18114 ± 928 (5.1) | 7832 ± 393 (5.0) | 11996 ± 604 (5.0) | 31864 ± 2633 (8.3) | 28475 ± 4084 (14.3) | 130% |
| 3 | 14797 ± 622 (4.2) | 23685 ± 89 (0.4) | 8126 ± 60 (0.7) | 13734 ± 69 (0.5) | 26030 ± 253 (1.0) | 34491 ± 264 (0.8) | 131% |
| LR a | 29% | 26% | 6% | 34% | 30% | 20% | |
| Ammonia DWB (µg/g) | |||||||
| 1 | 2771 ± 41 (1.5) | 4769 ± 85 (1.8) | 2116 ± 35 (1.7) | 1616 ± 14 (0.9) | 6990 ± 124 (1.8) | 8593 ± 85 (1.0) | 156% |
| 2 | 3112 ± 73 (2.4) | 4608 ± 71 (1.5) | 2344 ± 25 (1.1) | 1929 ± 37 (1.9) | 8048 ± 178 (2.2) | 8281 ± 233 (2.8) | 135% |
| 3 | 3584 ± 144 (4.0) | 5497 ± 140 (2.6) | 2529 ± 56 (2.2) | 1841 ± 23 (1.2) | 8641 ± 213 (2.5) | 9745 ± 107 (1.1) | 149% |
| LR | 26% | 18% | 18% | 17% | 21% | 16% | |
| Acetaldehyde DWB (µg/g) | |||||||
| 1 | 1.17 ± 0.16 (14) | 0.21 ± 0.04 (19) | 0.97 ± 0.03 (3) | 0.29 ± 0.05 (16) | 0.65 ± 0.11 (17) | 1.28 ± 0.14 (11) | 140% |
| 2 | 2.23 ± 0.12 (6) | < 0.10 | 2.07 ± 0.30 (15) | 0.81 ± 0.08 (10) | 0.75 ± 0.02 (3) | 1.28 ± 0.22 (17) | NC |
| 3 | 0.50 ± 0.01 (2) | 0.22 ± 0.02 (9) | 1.11 ± 0.07 (6) | < 0.10 | 0.33 ± 0.03 (8) | 0.61 ± 0.06 (10) | 161% |
| LR | 133% | 5% | 80% | 95% | 73% | 63% | |
| Crotonaldehyde DWB (µg/g) | |||||||
| 1 | < 0.040 | < 0.041 | < 0.041 | < 0.039 | < 0.042 | < 0.042 | NA |
| 2 | < 0.050 | < 0.050 | < 0.050 | < 0.050 | < 0.050 | < 0.050 | NA |
| 3 | < 0.050 | < 0.050 | < 0.050 | < 0.050 | < 0.009 | < 0.009 | NA |
| LR | NA | NA | NA | NA | NA | NA | |
| Formaldehyde DWB (µg/g) | |||||||
| 1 | 1.22 ± 0.17 (14) | 0.51 ± 0.05 (10) | 0.71 ± 0.03 (4) | 3.33 ± 0.45 (14) | 1.19 ± 0.18 (15) | 1.39 ± 0.18 (13) | 203% |
| 2 | 1.03 ± 0.08 (7) | 0.46 ± 0.09 (20) | 1.14 ± 0.11 (10) | 2.32 ± 0.11 (5) | 0.58 ± 0.01 (1) | 0.98 ± 0.12 (12) | 171% |
| 3 | 0.83 ± 0.07 (8) | 0.26 ± 0.08 (31) | 0.78 ± 0.09 (12) | 1.21 ± 0.08 (7) | 0.69 ± 0.07 (11) | 0.52 ± 0.08 (15) | 133% |
| LR | 38% | 61% | 49% | 93% | 74% | 90% | |
| Arsenic DWB (ng/g) | |||||||
| 1 | 99 ± 6 (6) | 146 ± 11 (8) | 2342 ± 554 (24) | 2080 ± 162 (8) | 111 ± 4 (3) | 133 ± 6 (5) | 274% |
| 2 | 140 ± 15 (10) | 120 ± 11 (9) | 216 ± 17 (8) | 281 ± 30 (11) | 157 ± 18 (12) | 189 ± 16 (8) | 88% |
| 3 | 129 ± 10 (7) | 211 ± 16 (8) | 1028 ± 125 (12) | 265 ± 14 (5) | 188 ± 19 (10) | 140 ± 10 (7) | 275% |
| LR | 33% | 57% | 178% | 207% | 51% | 36% | |
| Cadmium DWB (ng/g) | |||||||
| 1 | 1078 ± 40 (4) | 1164 ± 45 (4) | 1173 ± 134 (11) | 1326 ± 29 (2) | 527 ± 16 (3) | 722 ± 25 (3) | 80% |
| 2 | 1414 ± 88 (6) | 1381 ± 109 (8) | 1316 ± 84 (6) | 1622 ± 98 (6) | 669 ± 51 (8) | 328 ± 81 (25) | 115% |
| 3 | 1273 ± 88 (7) | 1416 ± 34 (2) | 1312 ± 18 (1) | 1770 ± 15 (1) | 1216 ± 69 (6) | 769 ± 15 (2) | 77% |
| LR | 27% | 19% | 11% | 28% | 86% | 73% | |
| Benzo(a)pyrene DWB (ng/g) | |||||||
| 1 | 4.33 ± 0.31 (7) | 4.63 ± 0.39 (8) | 4.57 ± 0.23 (5) | 4.14 ± 0.25 (6) | 3.86 ± 0.25 (7) | 1.85 ± 0.14 (8) | 71% |
| 2 | 5.38 ± 0.35 (7) | 5.85 ± 0.26 (5) | 5.63 ± 0.62 (11) | 3.19 ± 0.27 (9) | < 2.19 | < 2.00 | NC |
| 3 | 3.72 ± 0.81 (22) | 4.10 ± 0.25 (6) | < 0.10 | 3.20 ± 0.31 (10) | 3.05 ± 0.33 (11) | 2.11 ± 0.25 (12) | NC |
| LR | 37% | 36% | 21% | 27% | 23% | 13% | |
| NNK DWB (ng/g) | |||||||
| 1 | 4682 ± 149 (3) | 661 ± 43 (6) | 4388 ± 137 (3) | 445 ± 19 (4) | 687 ± 17 (2) | 164 ± 18 (11) | 246% |
| 2 | 2701 ± 475 (18) | 477 ± 36(8) | 8938 ± 138(2) | 341 ± 11(3) | < 100 | 2425 ± 132(6) | NC |
| 3 | 2987 ± 162(5) | 606 ± 24(4) | 10164 ± 426(4) | 472 ± 28(6) | 1245 ± 255(21) | 163 ± 22(13) | 384% |
| LR | 57% | 32% | 74% | 31% | 58% | 247% | |
| NNN DWB (ng/g) | |||||||
| 1 | 5326 ± 295(5.5) | 3012 ± 155(5.1) | 10016 ± 495(4.9) | 1850 ± 127(6.9) | 2186 ± 60(2.8) | 2050 ± 87(4.2) | 200% |
| 2 | 4896 ± 249(5.1) | 2674 ± 241(9.0) | 16749 ± 187(1.1) | 1625 ± 6(0.4) | 1244 ± 85(6.8) | 5173 ± 239(4.6) | 287% |
| 3 | 5821 ± 224(3.8) | 3632 ± 92(2.5) | 26566 ± 752(2.8) | 3140 ± 160(5.1) | 3795 ± 347(9.1) | 1993 ± 46(2.3) | 328% |
| LR | 17% | 31% | 93% | 69% | 106% | 104% | |

Figure 3.
Lab comparison: Tobacco nicotine average of 7 replicates shown for each sample from three different labs. Error bars are 3 × standard deviation.
Table 4.
Employed machine smoking parameters.
| Parameter | Cigar diameter ≤ 12.0 mm | Cigar diameter > 12.0 mm |
|---|---|---|
| Puff volume (mL) | 20 | 0.139 × (diameter)2 |
| Puff frequency (s) | 40 | 40 |
| Puff duration (s) | 1.5 | 1.5 |
Table 5.
Summary results of puff count, TPM, “tar”, nicotine, water, and CO. Data are displayed as mean ± one standard deviation (%RSD); n = 20;.
| Lab | A | B | C | D | E | F | LPR b |
|---|---|---|---|---|---|---|---|
| Puff count (per cigar) | |||||||
| 1 | 21 ± 1 (4) | 54 ± 10 (18) | 45 ± 3 (7) | 37 ± 3 (9) | 92 ± 14 (16) | 201 ± 59 (29) | 240% |
| 2 | 22 ± 1 (6) | 57 ± 10 (18) | 42 ± 3 (7) | 50 ± 7 (15) | 103 ± 13 (12) | 155 ± 18 (12) | 186% |
| 3 | 20 ± 1 (7) | 48 ± 7 (14) | 41 ± 4 (9) | 37 ± 5 (13) | 155 ± 25 (16) | 199 ± 32 (16) | 215% |
| LR a | 10% | 17% | 9% | 31% | 54% | 25% | |
| “Tar” (mg/cigar) | |||||||
| 1 | 22 ± 2 (10) | 37 ± 11 (30) | 49 ± 5 (11) | 31 ± 9 (30) | 92 ± 47 (51) | 138 ± 55 (40) | 189% |
| 2 | 25 ± 3 (13) | 51 ± 8 (16) | 50 ± 5 (11) | 61 ± 8 (13) | 138 ± 26 (19) | 286 ± 47 (16) | 256% |
| 3 | 19 ± 3 (17) | 45 ± 12 (25) | 49 ± 8 (17) | 39 ± 9 (22) | 171 ± 41 (24) | 291 ± 47 (16) | 266% |
| LR | 27% | 32% | 2% | 69% | 59% | 64% | |
| Nicotine (mg/cigar) | |||||||
| 1 | 0.95 ± 0.11 (11) | 2.26 ± 0.77 (34) | 1.45 ± 0.41 (28) | 1.08 ± 0.45 (41) | 5.62 ± 3.45 (61) | 22.24 ± 13.06 (59) | 380% |
| 2 | 1.16 ± 0.11 (9) | 3.22 ± 0.49 (15) | 1.51 ± 0.18 (12) | 2.26 ± 0.30 (13) | 9.91 ± 3.46 (35) | 13.19 ± 5.69 (43) | 231% |
| 3 | 0.86 ± 0.09 (10) | 3.33 ± 0.71 (21) | 1.42 ± 0.25 (18) | 1.49 ± 0.44 (30) | 9.86 ± 4.22 (43) | 25.70 ± 7.51 (29) | 349% |
| LR | 30% | 36% | 6% | 73% | 51% | 61% | |
| Carbon monoxide (mg/cigar) | |||||||
| 1 | 28 ± 3 (11.0) | 65 ± 18 (28.0) | 69 ± 43 (62.0) | 58 ± 17 (30.0) | < 359.8 | 553 ± 311 (56.0) | 340% c |
| 2 | 30 ± 5 (17.0) | 70 ± 12 (18.0) | 72 ± 21 (30.0) | 78 ± 27 (35.0) | 446 ± 172 (39.0) | 751 ± 110 (15.0) | 299% |
| 3 | 26 ± 3 (13.0) | 67 ± 13 (19.0) | 93 ± 10 (10.0) | 57 ± 8 (14.0) | 404 ± 60 (15.0) | 732 ± 69 (9.0) | 307% |
| LR | 14% | 7% | 31% | 33% | 21% a | 29% | |
| Water (mg/cigar) | |||||||
| 1 | < 0.6 | < 2.2 | 1.9 ± 0.5 (25) | < 0.8 | < 88.0 | < 309.8 | NC |
| 2 | 0.8 ± 0.4 (49) | 3.7 ± 1.6 (44) | 2.6 ± 1.7 (66) | 8.4 ± 2.7 (33) | 96.9 ± 35.5 (37) | 166.5 ± 53.6 (32) | 356% |
| 3 | 0.1 ± 0.2 (206) | 0.7 ± 1.0 (141) | 0.8 ± 0.8 (101) | 1.0 ± 1.0 (106) | 88.8 ± 34.8 (39) | 261.9 ± 97.4 (37) | 445% |
| LR | 140% c | 136% c | 102% | 224% c | 10% c | 58% c | |
| TPM (mg/cigar) | |||||||
| 1 | 23 ± 2 (11) | 42 ± 13 (32) | 52 ± 6 (11) | 32 ± 10 (31) | 185 ± 102 (55) | 470 ± 261 (56) | 334% |
| 2 | 27 ± 3 (12) | 58 ± 9 (15) | 54 ± 6 (11) | 71 ± 10 (14) | 245 ± 40 (16) | 466 ± 78 (17) | 286% |
| 3 | 19 ± 3 (17) | 50 ± 12 (25) | 52 ± 8 (16) | 42 ± 10 (23) | 269 ± 72 (27) | 579 ± 111 (19) | 332% |
| LR | 35% | 32% | 4% | 81% | 36% | 22% | |

Figure 4.
Product comparison: “Tar” yields. Data shown for a single laboratory (Lab 1), n=20.

Figure 5.
TNCO Collaborative Studies: %R values for “tar” from 2007 to 2019 (n=5; laboratory count, typically <12).

Figure 6.
TNCO Collaborative studies: Cigar (40) vs. cigarette (41) regime for a cigarette monitor test piece where global mean is based on data from all laboratories in the study.
Table 6.
Summary of smoking results. Data are displayed as mean ± one standard deviation (%RSD); n = 7;.
| Lab | A | B | C | D | E | F | LPR b |
|---|---|---|---|---|---|---|---|
| Ammonia (µg/cigar) | |||||||
| 1 | 28 ± 7 (27) | 60 ± 53 (87) | 107 ± 129 (121) | 104 ± 88 (85) | 1467 ± 1167 (80) | 5987 ± 3397 (57) | 461% |
| 2 | 43 ± 12 (28) | 43 ± 9 (21) | 62 ± 5 (9) | 68 ± 13 (19) | 1101 ± 215 (20) | 2636 ± 1581 (60) | 394% |
| 3 | < 30.0 | < 30.2 | 41 ± 7 (16) | < 32.9 | 1503 ± 996 (66) | 5417 ± 2979 (55) | NC |
| LR a | 45% | 67% | 94% | 104% | 30% | 72% | |
| Acetaldehyde (µg/cigar) | |||||||
| 1 | 700 ± 133 (19) | 955 ± 286 (30) | 1721 ± 357 (21) | 1769 ± 454 (26) | 4669 ± 1925 (41) | 5011 ± 1134 (23) | 174% |
| 2 | 760 ± 67 (9) | 1334 ± 286 (21) | 1653 ± 263 (16) | 1747 ± 204 (12) | 3257 ± 726 (22) | 5520 ± 1082 (20) | 200% |
| 3 | 1042 ± 73 (7) | 1906 ± 121 (6) | 2525 ± 199 (8) | 2251 ± 206 (9) | 3892 ± 728 (19) | 4503 ± 758 (17) | 129% |
| LR | 41% | 68% | 44% | 26% | 36% | 20% | |
| Acrolein (µg/cigar) | |||||||
| 1 | 27 ± 6 (24) | 11 ± 3 (30) | 26 ± 9 (35) | 33 ± 11 (33) | 63 ± 12 (19) | 99 ± 16 (16) | 204% |
| 2 | 36 ± 4 (10) | 29 ± 3 (11) | 47 ± 10 (22) | 47 ± 10 (21) | 67 ± 18 (27) | 92 ± 19 (20) | 119% |
| 3 | 40 ± 3 (8) | 26 ± 2 (8) | 51 ± 5 (9) | 51 ± 5 (9) | 28 ± 3 (11) | 63 ± 9 (14) | 86% |
| LR | 38% | 82% | 60% | 41% | 74% | 43% | |
| Crotonaldehyde (µg/cigar) | |||||||
| 1 | 6 ± 1 (21) | 9 ± 3 (31) | 42 ± 16 (39) | 38 ± 11 (28) | 61 ± 24 (39) | 77 ± 19 (25) | 183% |
| 2 | 15 ± 2 (15) | 195 ± 38 (20) | 44 ± 8 (19) | 49 ± 8 (16) | 49 ± 10 (20) | 68 ± 23 (34) | 257% |
| 3 | 11 ± 1 (7) | 20 ± 2 (10) | 40 ± 5 (12) | 44 ± 3 (7) | 20 ± 5 (26) | 27 ± 7 (27) | 122% |
| LR | 84% | 249% | 10% | 25% | 95% | 87% | |
| Formaldehyde (µg/cigar) | |||||||
| 1 | 11 ± 2 (18) | 8 ± 3 (36) | 11 ± 3 (26) | 15 ± 4 (29) | 8 ± 3 (33) | 9 ± 3 (33) | 68% |
| 2 | 8 ± 2 (26) | 9 ± 2 (22) | 14 ± 3 (21) | 15 ± 5 (33) | 20 ± 3 (16) | 24 ± 5 (23) | 107% |
| 3 | 7 ± 1 (11) | 7 ± 1 (17) | 13 ± 3 (22) | 21 ± 3 (16) | 9 ± 1 (13) | 16 ± 3 (21) | 115% |
| LR | 46% | 25% | 24% | 35% | 97% | 92% | |
| 4-Aminobiphenyl (ng/cigar) | |||||||
| 1 | 4 ± 1 (17) | 9 ± 2 (18) | 15 ± 1 (8) | 5 ± 3 (65) | 41 ± 11 (28) | 50 ± 10 (20) | 223% |
| 2 | 2 ± 0 (14) | 6 ± 2 (27) | 12 ± 1 (11) | 8 ± 2 (27) | 10 ± 4 (44) | 17 ± 5 (28) | 164% |
| 3 | 3 ± 0 (9) | 7 ± 2 (33) | 13 ± 2 (15) | 5 ± 2 (36) | 19 ± 3 (15) | 38 ± 7 (17) | 247% |
| LR | 67% | 41% | 23% | 50% | 133% | 94% | |
| 1-Aminonaphthalene (ng/cigar) | |||||||
| 1 | 53 ± 8 (15) | 90 ± 18 (20) | 137 ± 13 (10) | 55 ± 38 (69) | 424 ± 104 (24) | 518 ± 124 (24) | 218% |
| 2 | 86 ± 7 (9) | 118 ± 31 (27) | 155 ± 21 (14) | 150 ± 30 (20) | 131 ± 54 (41) | 193 ± 51 (26) | 77% |
| 3 | 39 ± 8 (20) | 77 ± 34 (44) | 111 ± 20 (18) | 55 ± 23 (42) | 170 ± 39 (23) | 308 ± 45 (15) | 212% |
| LR | 79% | 43% | 33% | 110% | 121% | 96% | |
| 2-Aminonaphthalene (ng/cigar) | |||||||
| 1 | 35 ± 5 (14) | 48 ± 8 (18) | 78 ± 8 (10) | 35 ± 23 (65) | 221 ± 55 (25) | 270 ± 65 (24) | 205% |
| 2 | 39 ± 2 (4) | 43 ± 9 (21) | 67 ± 5 (8) | 68 ± 14 (20) | 52 ± 21 (40) | 76 ± 24 (32) | 64% |
| 3 | 26 ± 4 (16) | 38 ± 15 (38) | 60 ± 11 (19) | 32 ± 13 (42) | 88 ± 19 (21) | 168 ± 38 (23) | 207% |
| LR | 39% | 23% | 26% | 80% | 140% | 113% | |
| Benzo(a)pyrene (ng/cigar) | |||||||
| 1 | 11 ± 5 (48) | 23 ± 9 (42) | 74 ± 12 (15) | 32 ± 19 (58) | 97 ± 35 (36) | 155 ± 30 (19) | 220% |
| 2 | 26 ± 4 (14) | 39 ± 7 (19) | 89 ± 11 (12) | 85 ± 17 (20) | 99 ± 19 (20) | 137 ± 25 (19) | 140% |
| 3 | 19 ± 2 (11) | 30 ± 12 (42) | 68 ± 8 (11) | 63 ± 12 (19) | 78 ± 20 (26) | 113 ± 47 (42) | 152% |
| LR | 80% | 52% | 27% | 88% | 23% | 31% | |
| NNK (ng/cigar) | |||||||
| 1 | 433 ± 79 (18) | 135 ± 36 (27) | 689 ± 216 (31) | 166 ± 82 (50) | 421 ± 213 (51) | 380 ± 268 (71) | 149% |
| 2 | 1286 ± 246 (19) | 502 ± 111 (22) | 4299 ± 682 (16) | 574 ± 91 (16) | 1707 ± 2358 (138) | 529 ± 387 (73) | 256% |
| 3 | 419 ± 37 (9) | 213 ± 77 (36) | 1809 ± 327 (18) | 152 ± 58 (38) | 1266 ± 1492 (118) | 255 ± 77 (30) | 242% |
| LR | 122% | 130% | 159% | 142% | 114% | 71% | |
| NNN (ng/cigar) | |||||||
| 1 | 350 ± 64 (18) | 240 ± 90 (37) | 838 ± 184 (22) | 224 ± 92 (41) | 1303 ± 1025(79) | 2364 ± 766 (32) | 241% |
| 2 | 1177 ± 73 (6) | 1030 ± 215 (21) | 6313 ± 1008 (16) | 935 ± 96 (10) | 2286 ± 1399 (61) | 1989 ± 647 (33) | 235% |
| 3 | 402 ± 20 (5) | 517 ± 228 (44) | 3205 ± 482 (15) | 322 ± 112 (35) | 1755 ± 883 (50) | 3370 ± 1597 (47) | 191% |
| LR | 129% | 133% | 159% | 144% | 55% | 54% | |
| Acrylonitrile (µg/cigar) | |||||||
| 1 | 12 ± 3 (28) | 55 ± 12 (21) | 72 ± 15 (21) | 30 ± 16 (54) | 302 ± 56 (19) | 473 ± 90 (19) | 293% |
| 2 | 17 ± 5 (27) | 63 ± 11 (18) | 81 ± 7 (8) | 57 ± 17 (29) | 112 ± 25 (23) | 184 ± 37 (20) | 195% |
| 3 | 16 ± 1 (7) | 65 ± 19 (29) | 90 ± 12 (13) | 51 ± 3 (7) | 241 ± 36 (15) | 488 ± 79 (16) | 298% |
| LR | 33% | 16% | 22% | 59% | 87% | 80% | |
| Benzene (µg/cigar) | |||||||
| 1 | 58 ± 9 (16) | 248 ± 75 (30) | 280 ± 46 (16) | 152 ± 72 (48) | 1313 ± 144 (11) | 1634 ± 144 (9) | 257% |
| 2 | 81 ± 19 (24) | 320 ± 52 (16) | 356 ± 29 (8) | 305 ± 80 (26) | 699 ± 97 (14) | 812 ± 168 (21) | 170% |
| 3 | 71 ± 4 (6) | 318 ± 81 (25) | 364 ± 52 (14) | 231 ± 20 (9) | 1250 ± 154 (12) | 2021 ± 204 (10) | 275% |
| LR | 33% | 24% | 25% | 67% | 56% | 81% | |
| 1,3-Butadiene (µg/cigar) | |||||||
| 1 | 56 ± 4 (7) | 185 ± 30 (16) | 235 ± 46 (20) | 116 ± 50 (43) | 974 ± 304 (31) | 974 ± 279 (29) | 217% |
| 2 | 207 ± 49 (24) | 600 ± 130 (22) | 757 ± 79 (10) | 515 ± 131 (25) | 1445 ± 724 (50) | 1172 ± 233 (20) | 158% |
| 3 | 93 ± 5 (6) | 323 ± 97 (30) | 388 ± 37 (9) | 245 ± 18 (7) | 633 ± 124 (20) | 1033 ± 158 (15) | 208% |
| LR | 127% | 112% | 113% | 137% | 80% | 19% | |
| Isoprene (µg/cigar) | |||||||
| 1 | 527 ± 90 (17) | 2019 ± 410 (20) | 1897 ± 333 (18) | 1001 ± 332 (33) | 8714 ± 1988 (23) | 11006 ± 3810 (35) | 250% |
| 2 | 736 ± 146 (20) | 2027 ± 447 (22) | 1864 ± 203 (11) | 1739 ± 377 (22) | 4360 ± 1348 (31) | 4893 ± 1186 (24) | 160% |
| 3 | 630 ± 54 (9) | 2253 ± 717 (32) | 1898 ± 156 (8) | 1490 ± 98 (7) | 7131 ± 1804 (25) | 14393 ± 2265 (16) | 297% |
| LR | 33% | 11% | 2% | 52% | 65% | 94% | |
| Toluene (µg/cigar) | |||||||
| 1 | 84 ± 25 (29) | 391 ± 93 (24) | 407 ± 93 (23) | 230 ± 93 (40) | 2700 ± 413 (15) | 3705 ± 642 (17) | 289% |
| 2 | 131 ± 33 (26) | 544 ± 78 (14) | 603 ± 70 (12) | 575 ± 149 (26) | 1273 ± 250 (20) | 1823 ± 316 (17) | 205% |
| 3 | 128 ± 9 (7) | 621 ± 140 (22) | 732 ± 116 (16) | 458 ± 47 (10) | 2706 ± 301 (11) | 5041 ± 536 (11) | 304% |
| LR | 41% | 44% | 56% | 82% | 64% | 91% | |

Figure 7.
Lab comparison: Smoke formaldehyde average of 7 replicates shown for each sample from three different labs. Error bars are 3 × standard deviation.