Found this the other day on Gen Waxe's website.
www.generalwax.com
New Candle Study Press Release!
A recent study of all major candle wax types shows that when candles are well-made, they have the same clean-burning behavior and pose no discernible risks to human health or indoor air quality.
The independent lab tests, which were completed in late 2007, were conducted at the Bayreuth Insitute of Environmental Research in Germany. The tests constitute the most extensive and rigorous scientific investigation of candle emissions to date.
The study tested paraffin, soywax, stearin, palm wax and beeswax candles in specialized testing chamber. The emission gasses were analyzed for more than 300 chemicals that are known or suspected of toxicity, health risks or respiratory irritation. These chemical groups includd dioxins and furans, polycylic aromatic hydrocarbons, short-chain adehydes and volatile organic compounds. The recorded emision levels were then compared to known relevant indoor and standards.
The study found all of the waxes burned cleanly and safely, with no appreciable difference in burning behavior. Their combustion byproducts were virtually identical in composition and quantity, with all emissions levels registering far below the most restrictive of any applicable indoor air standards.
The study also looked at two candle types -- paraffin and soy -- that were specifically made to soot at high levels. The study found that even though these candles generally produced greater levels of emissions than the reference candles, they were still far below the most stringent of the applicable air quality standards.
The study was sponsored by the Association of European Candle Manufacturers, the Asociacion Latino Americana de Fabricantes de Velas, Cargill, Inc., the European Wax Federation, the National Candle Association, and the National Petrochemical & Refiners Association.
Munky.