Table 1 Average LAeq levels and peak SPL in dB(C) levels under different types of exposure. Number of measurements in the last column
Type of exposure (Average) | Left and right ear combined (dB(A)) (Average) | Left and right ear combined (dB(C)) (Peaks) | Number of measurements (total: left + right) | ||||||
|---|---|---|---|---|---|---|---|---|---|
Max. | Min. | Mean | SD | Max. | Min. | Mean | SD | ||
Controls | 83 | 63 | 69 | 4 | 122 | 107 | 113 | 4 | 66 |
MECU urban road | 97 | 65 | 72 | 5 | 124 | 90 | 103 | 5 | 174 |
MECU rural road | 90 | 67 | 75 | 4 | 123 | 99 | 107 | 4 | 118 |
MECU motorway | 97 | 71 | 77 | 4 | 125 | 101 | 110 | 5 | 76 |
Ambulance urban road | 88 | 73 | 79 | 4 | 123 | 100 | 108 | 6 | 26 |
Ambulance rural road | 94 | 74 | 80 | 4 | 123 | 105 | 112 | 5 | 30 |
Ambulance motorway | 85 | 76 | 80 | 3 | 122 | 108 | 114 | 5 | 20 |
HEMS physicians | 97 | 73 | 82 | 5 | 128 | 109 | 118 | 4 | 200 |
HEMS pilots | 97 | 72 | 83 | 7 | 128 | 108 | 118 | 5 | 214 |