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Decline in Lung Function Linked to Use of Military Small Arms

by Dr. Enozia Vakil on September 9, 2013 at 7:24 PM
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Decline in Lung Function Linked to Use of Military Small Arms

A new study has linked the exposure to fumes released during use of small arms to a decline in lung function.

The research, which will be presented at the European Respiratory Society (ERS) Annual Congress in Barcelona today (9 September 2013), suggests that members of the armed forces who are regularly firing small arms could be putting their lung health at risk.

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Over the last 5 years, the armed forces in Norway have started to report ill health after live firing training. This new study aimed to characterise the health effects from the use of these weapons and investigate which components in the emissions were causing the health effects.

Researchers from Oslo University Hospital and the Norwegian Defence Research Establishment examined 55 healthy, non-smoking men from the Norwegian Armed Forces. They tested the exposure to fumes from three different types of ammunition, one leaded and two lead-free, used in an assault rifle.
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Each participant had a spirometry test, which measures lung function, before the shooting, immediately after and 24 hours after. A tent was used during the shooting to control other exposures.

The findings revealed that there were no significant differences in the types of ammunition used, but all groups experienced a decline in lung function shortly after shooting and at 24 hours after exposure, compared with the pre-test levels. The results showed that lung function, measured by (FEV1)*, declined by a mean average of 5% across all groups at 1 hours after shooting and by 7% at 24 hours after shooting.

Anne-Katrine Borander, lead author of the study from the Oslo University Hospital, said: "The findings from our small sample show that fumes from military arms are causing a decline in lung function shortly after firing practice."

"These lung function changes are comparable to the effects caused by other occupational risk factors, such as organic dusts in farming and cotton workers. Although we noticed this decline for all types of ammunition, further research can now be undertaken to look at specific exposure components to help design better ammunition, and to continue implementation of other measures for avoiding these effects."



Source: Eurekalert
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