Table 3.
Environmental Conditions.
| Industry/Activity |
Ta, °C |
RH, % |
Pa, HPa |
Tg, °C |
Tr, °C |
v, ms−1 |
WBGT, °C |
Clothing, clo |
|---|---|---|---|---|---|---|---|---|
| Agriculture | ||||||||
| Sheep shearing | 33.4 (19.0–41.0) | 26* | 13.2 (9.2–19.1) | — | 37 (20–45) | 0.64 (<0.2–1.7) | 24.3 (15.9–29.0) | — |
| Horse back Mustering | 36 | — | — | Sunny | Sunny | — | — | — |
| Construction | ||||||||
| Carpenters | 32.1 (24.0–38.0) | (17–36) | 12 | — | (35–58) | (<0.2–1.2) | 25 (19–30) | (0.4–0.7) |
| Laying and tying steel reinforcing | 37 | 55 | 34 | 43 | — | 2.7 | 32 | — |
| Mine construction | 37.7 (37.4–38.0) | 50 (48–54) | 33 (31–35) | — | — | 1.5 (0.9–2.3) | 32 (31–32) | — |
| Defense | ||||||||
| 5 km march, load 40 kg | — | — | — | — | — | — | (24–25) | — |
| 10 km, 5.5 k·h−1, load 42 kg | 24.2 (1.6) | 82 | 24.8 | 27.3 (5.4) | — | — | 23 (21–26) | 1.37 |
| 5 km, load 20 kg, 55 min | — | — | — | — | — | — | 27.6 | — |
| 20 km, load 35 kg, 4.0 h | — | — | — | — | — | — | 27.1 | — |
| 15 km march (August) | 23 (25–16) | — | — | — | — | — | 19 (17–21) | — |
| 15 km march (November) | 29 (27—31) | 75 (59—90) | 29 (27—31) | — | — | — | 26 (25–28) | — |
| Patrol & Recon, load 30 kg | 32 | 48 | 42 | (37—44) | — | — | (26–28) | — |
| Tank crews | ||||||||
| Exterior (June) | 31.6 (0.7) | 22 (4) | 10 | — | — | — | 28.4 (1.5) | — |
| Interior (June) | 38.3 (1.3) | — | — | — | — | — | 29.2 (1.8) | — |
| Exterior (September) | 36.6 (0.5) | 26 (1) | 16 | — | — | — | 33.4 (0.8) | — |
| Interior (September) | 40.1 (1.8) | — | — | — | — | — | 32.9 (0.8) | — |
| Jungle Patrol | ||||||||
| No body armour, load 21 kg | 27 (21–31) | 63 (39–97) | 23 (17–24) | — | — | — | — | — |
| With body armour, load 29 kg | “ | “ | “ | — | — | — | — | — |
| Emergency services | ||||||||
| Medical emergency resp team | 29.3 | 50 | 20 | Shade | Shade | Breeze | — | — |
| Search and Rescue | ||||||||
| Heat acclimatized | 34.0 (0.7) | 48 (2) | 25 | — | — | — | 31.4 (0.5) | PPE |
| Non-heat acclimatized | ” | ” | ” | — | — | — | ” | — |
| Prescribed burns | ||||||||
| Day 1 | 31 (4) | — | — | — | — | — | — | — |
| Day 2 | 33 (6) | — | — | — | — | — | — | — |
| Bush fire, fireline constr. | ||||||||
| With fire (F) | 29 (19–35) | 42* | 17 (12–23) | — | 66 (33–96) | 1.2 (0.7–1.7) | 26 (17–34) | — |
| Without fire (NF) | 26 (17–33) | 4* | 16 (12–20) | — | 42 (30–53) | 0.8 (0.6–1.0) | 22 (15–28) | — |
| Maintenance | ||||||||
| Power station maintenance | 30 (1) | 79 (6) | 33 | — | — | — | 28 (26–29) | — |
| Council workers | 30 (27–31) | 70 (67–79) | 30 | — | — | — | 26 (25–27) | (0.64–0.74) |
| Railway track maintenance | ||||||||
| Day 1 | 34 (22–41) | 15 (11–23) | 7.9 (6.1–9.9) | — | 57 (38–70) | 2.0 (0.2–3.7) | 24 (15–28) | 0.5 (0.2–0.9) |
| Day 2 | Max: 31 | 78–31 | 28 | — | — | 3.4 | 17–24 | ” |
| Day 3 | Max: 37 | 13–25 | 6 | — | — | 3.8 | 13–25 | ” |
| Electrical utility | ||||||||
| (NT North) | 33.7 | 54 | 28.2* | — | — | — | 32 | — |
| (NT South) | 39.3 | 9 | 6.4* | — | — | — | 28.7 | — |
| Mining | ||||||||
| Open cut mine processing | 35.1 | 30 | 17 | — | — | — | 31 (2) | — |
| Shipping/processing port | 31.5 | 50 | 23 | — | — | — | 31 (4) | — |
| Surface mine. Blast crew | 35.5 (1.3) | 24 (6) | 16 (14—20) | — | — | — | 29.5 (1.9) | — |
| Deep mine. 1200—1600 m | 36.2 (2.6) | 56 | 33 | 36.3 (2.8) | — | 1.1 (1.6) | 30.8 (2.0) | — |
| Machinery operators | 33.2 (32.3–33.8) | 57 (54–58) | 29 (28–30) | — | — | 4.5 (4.2–4.9) | 29 (28–29) | — |
| Various | 39 (35–42) | 21 (15–28) | 14 (12–15) | — | — | 1.0 (0.7–1.6) | 27 (26–28) | — |
| Light manual work A | 35 (2) | 59 (6) | 33 | 38.7 (3.6) | — | 4.1 (1.8) | 30.6 (2.2) | — |
| Light manual work B | 37.6 (3.0) | 32 (8) | 21 | 43.5 (5.2) | — | 1.8 (1.2) | 29 (2) | — |
| Others | ||||||||
| Zinc cathode strip | 33 (25–39) | 30 | 14.5 (12.5–16.9) | — | 37 (32–41) | 1.5 (0.4–2.4) | 25 (22–28) | 0.8 |
| Lead/zinc process operators | 34 (26–37) | (21–35) | 13 | — | 52 (38—65) | 0.4 (0.2–0.7) | (27–30) | (0.8–0.9) |
Asterisk
*
indicates RH derived by present authors from Ta and Pa, or Pa from Ta and RH.