There has been some debate of late in regards to environmental issues relating to embalming. Beyond the obvious benefits of enabling a family to take the time required to prepare for a funeral there are also established health reasons for embalming, and important long-term environmental benefits.
The risk of infection from leaving the body untreated prior to the funeral makes embalming the healthiest option for family members and any others coming into contact with the body.
After dealing to any existing infection or disease, aldehydes, the principal ingredient of most embalming fluids, consisting of carbon, oxygen and hydrogen, are neutralised upon contact with soil. During cremation these aldehydes are completely destroyed, becoming carbon dioxide and water. Recent studies of ground water in cemeteries, as well as air samples from crematoria, have shown that embalming causes no pollution to burial grounds or the atmosphere.