A US study of healthy men has shown no consistent relationship between exposure to trihalomethanes and haloacetic acids in drinking water and several markers of sperm quality. However, the study did observe a weak relationship between decreasing sperm concentration and increasing exposure to total organic halides. Many studies of DBPs and reproductive outcomes have been conducted in women, however this is only the second published study to examine DBP exposure and reproductive health in men. The first study in men reported that high levels of ingestion exposure to DBPs in tap water were associated with decreases in sperm motility.
Ian: For those of you who don't know, we are talking about water pollutants common in chlorinated water.
On the same subject (and the same pollutants) here's a sobering article on swimming pool water. And here's a quote from it:
"Human exposure studies have found that THms may be present in the blood, plasma and exhaled breath of swimmers and even non-swimmers in the indoor pool setting."
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