Lead exposure in indoor firing ranges
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Higher air lead levels (time-weighted average 660, range 112–2238 μg/m3) were measured in firing ranges where powder charges were employed than in ranges where air guns were used (4.6, range 1.8–7.2 μg/m3); levels in the latter were in turn higher than those in ranges used for archery (0.11, range 0.10–0.13 μg/m3) Twenty-two marksmen who used powder charges had significantly increased blood lead levels during the indoor shooting season (before: median 106, range 32–176 μg/l; after: 138; range 69–288 μg/l; P = 0.0001), while 21 subjects who mainly used air guns displayed no significant increase (before: median 91, range 47–179 μg/l; after: 84; range 20–222 μg/l). Thirteen archers had significantly lower levels than the pistol shooters before the season (P = 0.006), and showed a significant decrease during the season (before: median 61, range 27–92 μg/l; after: 56; range 31–87 μg/l; P = 0.04). At the end of the indoor season, there was a significant association between weekly pistol shooting time and blood lead levels.
Key wordsLead Firing range Bullets Pistol shooting
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