Table 1. Exhale duration, peak air velocity, particle concentration and mean particle diameter recorded during playing the vuvuzela and shouting by four male and four female volunteers.
| ID | Experiment | Duration | Peak velocity | Peak particle conc. | Average particle conc. | GM§ Diameter |
| s | m/s | 1,000's per L | 1,000's per L | microns | ||
| F1 | Shout | 2.4(0.3) | 0.2(0.1) | 6.1(0.6) | 6.1(0.4) | 0.8(0.0) |
| Vuvu | 1.5(0.2) | 0.7(0.3) | 606(223) | 351(74) | 1.3(0.1) | |
| F2 | Shout | 3.9(0.7) | 0.1(0.0) | 6.5(0.5) | 6.4(0.3) | 0.9(0.0) |
| Vuvu | 3.1(0.9) | 0.4(0.1) | 1077(109) | 680(44) | 1.5(0.1) | |
| F3 | Shout | 1.8(0.7) | 0.1(0.0) | 1.2(0.1) | 1.3(0.1) | 0.9(0.1) |
| Vuvu | 1.4(0.1) | 0.3(0.1) | 220(260) | 134(143) | 1.2(0.1) | |
| F4 | Shout | 2.4(1.2) | 0.2(0.1) | 1.9(0.1) | 1.8(0.1) | 1.0(0.1) |
| Vuvu | 2.3(0.4) | 0.3(0.1) | 396(335) | 263(280) | 1.2(0.1) | |
| M1 | Shout | 1.7(0.6) | 0.2(0.1) | 6.0(0.1) | 6.0(0.3) | 0.8(0.0) |
| Vuvu | 2.4(0.5) | 0.8(0.1) | 1197(245) | 669(235) | 1.5(0.3) | |
| M2 | Shout | 1.3(0.1) | 0.2(0.0) | 1.5(0.3) | 1.5(0.2) | 1.1(0.1) |
| Vuvu | 2.2(0.1) | 0.4(0.1) | 178(140) | 114(81) | 0.9(0.1) | |
| M3 | Shout | 1.5(0.5) | 0.2(0.0) | 3.2(2.5) | 2.9(1.8) | 1.4(0.4) |
| Vuvu | 2.0(0.7) | 0.3(0.1) | 645(120) | 401(185) | 1.7(0.1) | |
| M4 | Shout | 2.3(0.5) | 0.1(0.0) | 3.0(0.8) | 2.9(0.7) | 0.9(0.0) |
| Vuvu | 2.0(0.1) | 1.5(0.4) | 944(225) | 602(181) | 1.3(0.1) | |
| Mean ‡ | Shout | 2.2(0.8) | 0.2(0.1) | 3.7(2.2) | 3.6(2.2) | 1.0(0.2) |
| Vuvu | 2.1(0.5) | 0.6(0.4) | 658(386) | 402(228) | 1.3(0.2) |
†
Results presented here are means from three repetitions (the standard deviation of the repetitions is in brackets).
‡
Mean and standard deviation of the means presented.
§
Geometric mean diameter of particles at peak concentration.