Church air is 'threat to health' Air inside churches may be a bigger health risk than that beside major roads, research suggests. Church air was found to be considerably higher in carcinogenic polycyclic hydrocarbons than air beside roads travelled by 45,000 vehicles daily. It also had levels of tiny solid pollutants (PM10s) up to 20 times the European limits. The study, by Holland's Maastricht University, is published in the European Respiratory Journal. This discovery is very worrying Dr Theo de Kok The researchers say that December, with churches lighting up candles for Christmas, could be an especially dangerous month for...