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PubMed2006

Mercury emission from crematoria.

The purpose of this study, undertaken at a cremator representing an example of current equipment and cremation practices in use in Italy, is to assess the possible mercury emitted during cremation and substantiate the current data available. This paper reports some preliminary results concerning mercury and total particulate matter emissions during three cremation processes. The obtained results gave a mercury concentration ranging from 0.005 to 0.300 mg/m3 and a mercury emission factor ranging from 0.036 to 2.140 g/corpse cremated. The total particulate matter concentration range was 1.0 to 2.4 mg/m3.

Environmental Pollutants↗
PubMed2002

Pacemaker explosions in crematoria: problems and possible solutions.

The number of artificial cardiac pacemakers is increasing, as is the number of bodies being cremated. Because of the explosive potential of pacemakers when heated, a statutory question on the cremation form asks whether the deceased has a pacemaker and if so whether it has been removed. We sent a questionnaire to all the crematoria in the UK enquiring about the frequency, consequences and prevention of pacemaker explosions. We found that about half of all crematoria in the UK experience pacemaker explosions, that pacemaker explosions may cause structural damage and injury and that most crematoria staff are unaware of the explosive potential of implantable cardiac defibrillators. Crematoria staff rely on the accurate completion of cremation forms, and doctors who sign cremation forms have a legal obligation to provide such information.

Explosions↗
PubMed1995

[Mercury emission measurements in a crematorium. The dentistry aspects].

The amount of mercury released during cremation was calculated in a major Swiss city at two crematoria. A total of 60 mercury "output" calculations were carried out by the Swiss Material Testing Institute (Empa). The amount of mercury initially present ("input") in the dentitions of 54 deceased persons was assessed from their post-mortem dental radiographs and by clinical examination. The correlation between the "input" and the "output" was 0.93, irrespective of the age at death. However, the "input" was calculated to be 1.8 times higher than the "output" for the deceased people with amalgam restorations. In the blind study, the difference was 1.3 times. The main source of mercury was undoubtedly the amalgam restorations. The amount of mercury recorded during the cremation of 88% of the deceased people without amalgam restorations was under the accepted level of 200 micrograms/m3. However, in 3 cases, the amount of mercury was slightly more than 200 micrograms/m3. In contrast, the amount of mercury recorded during the cremation of only 18% of the deceased people with amalgam restorations was less than the accepted level of 200 micrograms/m3. The amount of mercury contamination during cremation as a result of amalgam fillings is so low that no additional preventive measures are required at the crematoria.

Adult↗
PubMed1998

The degree of destruction of human bodies in relation to the duration of the fire.

The changes occurring during cremation were watched and documented in 15 undissected bodies to be cremated. It was found that at temperatures between 670 and 810 degrees C the body showed the "pugilistic attitude" after about 10 minutes. After 20 minutes the calvaria was free from any soft tissue and fissures of the tabula externa could be noticed. The body cavities became visible after approximately 30 minutes, so that the organs were exposed. Forty minutes after cremation had started, the internal organs were severely shrunken and showed a net-like or sponge-like structure. After about 50 minutes the extremities were destroyed to an extent leaving only the torso which broke apart after 1-1.5 hours. The complete incineration of a human body took about 2-3 hours.

Aged↗
PubMed2001

Detection of anthrax spores in endemic regions of northern Canada.

AIMS: To determine the level of anthrax spore contamination in endemic regions of northern Canada between outbreaks. METHODS AND RESULTS: Bacterial endospores were extracted from specimens via flotation and cultured on selective PLET medium. Of 588 environmental specimens collected, 11 (1.9%) contained viable anthrax spores. CONCLUSION: High environmental concentrations of anthrax spores in northern Canada appear limited to scavenger faeces and anthrax carcass sites. Burial and cremation appear equally effective at removing anthrax spores from the immediate environment, though cremation may be improved by re-burning cremation sites containing unburned animal hair. SIGNIFICANCE AND IMPACT OF THE STUDY: This study describes an effective anthrax spore detection system. It provides the first bacteriological evidence that mammalian scavengers can disseminate anthrax spores in northern Canada, and its results may be compared with future environmental studies of untreated anthrax carcass sites to help improve government response plans.

Animals↗
PubMed2003

Is it ever enough to die of old age?

OBJECTIVE: To determine how often 'old age' was given as a cause of death in patients presenting for cremation, with particular reference to their characteristics and the medical conditions known to the certifying doctor at the time of death. DESIGN: Prospective review of all cremation papers presented to one crematorium over a two-year period. SETTING: An English crematorium serving a population of about 250,000. MAIN OUTCOME MEASURES: Deaths certified as being associated with 'old age' and those solely registered as due to this cause. Demographics of the patients and whether further enquiries by the medical referee revealed un-notified co-morbid conditions. RESULTS: Of 4300 cremation papers studied, 300 (7%) deaths were said to be associated with old age, of which 98 were to old age alone. Simple further enquiry discovered between one and six unrecorded co-morbid conditions in at least two-thirds of those certified as dying solely from old age. IMPLICATIONS: If this experience were reflected throughout the country, it would suggest significant underestimation of the incidence of medical conditions, with resultant effects on national and international health policy and investment.

Aged↗
PubMed1997

Does funeral preference influence clinical necropsy request outcome?

Attitudes towards necropsy have been shown to be more favourable amongst those relatives preferring cremation as a method of disposal compared to those with a preference for burial. In a two-year retrospective study, no significant relationship was found between funeral preferences (burial or cremation) and clinical necropsy request outcome when age, sex and religion were taken into account. Potential religious objections to necropsy were infrequent and cremation was found to have become the most popular method of disposing of the dead during a period when local clinical necropsy rates have continued to decline. Funeral preference is unlikely to have been a significant factor in the decline in clinical necropsy rates.

Attitude to Health↗
PubMed1998

Do doctors read forms? A one-year audit of medical certificates submitted to a crematorium.

To determine the thoroughness and accuracy with which medical certificates for cremation are completed, a record was made, during normal processing of the documents, of the number of questions that were not answered or answered wrongly, or in which clarification was required. Of 835 sets of forms only 346 (41%) were completed sufficiently accurately for the cremation to proceed without further enquiry. Junior doctors contributed the most errors but general practitioners and consultants also contributed large numbers of errors. Doctors ought to be far more accurate and thorough in completing cremation certificates than were those audited here. The results cast doubt on the reliability of information supplied on other forms. In view of the high frequency of poorly completed forms, review by a medical referee remains essential.

Cause of Death↗
PubMed1983

[Possibilities of metric sex determination from the pars petrosa ossis temporalis].

Based on a sample of petrous bones of known sex (47 males and 47 females) discriminant functions were worked out for sexing both uncremated and cremated petrous bones. Classification values were certain to range from 70.2% to 76.6% for uncremated petrosals and from 67.0% to 73.4% for cremated ones. The results do not support the more promising values suggested by Wahl (1981).

Adult↗
PubMed2005

Radiation safety aspects of brachytherapy for prostate cancer using permanently implanted sources. A report of ICRP Publication 98.

The use of permanent radioactive implants (125I or 103Pd seeds) to treat selected localised prostate cancer patients has been increasing rapidly all over the world for the last 15 years. It is estimated that more than 50,000 patients are treated this way every year in the world, and this number is anticipated to increase in the near future. Although no accidents or adverse effects involving medical staff and/or members of the patient's family have been reported to date, this brachytherapy technique raises a number of radiation safety issues that need specific recommendations from the ICRP. All data concerning the dose received by people approaching patients after implantation have been reviewed. Those doses have been either been measured directly or calculated. The available data show that, in the vast majority of cases, the dose to comforters and carers remains well below the recommended limit of 1 mSv/year. Only the (rare) case where the patient's partner is pregnant at the time of implantation may need specific precautions. Expulsion of sources through urine, semen, or the gastro-intestinal tract is rare. Specific recommendations should be given to patients to allow them to deal adequately with this event. Of note, due to the low activity of an isolated seed and its low photon energy, no incident/accident linked to seed loss has ever been recorded. When performed in the first few months after implantation, cremation of bodies (frequent in some countries) raises several issues related to: (1) the activity that remains in the patient's ashes; and (2) the airborne dose, potentially inhaled by crematorium staff or members of the public. Review of available data shows that cremation can be allowed if 12 months have elapsed since implantation with 125I (3 months for 103Pd). If the patient dies before this delay has elapsed, specific measures must be undertaken. Specific recommendations have to be given to the patient to warn his surgeon in case of subsequent pelvic or abdominal surgery. A 'wallet card' with all relevant information about the implant is useful. In most cases, brachytherapy does make the patient infertile. However, although the therapy-related modifications of the semen reduce fertility, patients must be aware of the possibility of fathering children after such a permanent implantation, with a limited risk of genetic effects for the child. Patients with permanent implants must be aware of the possibility of triggering certain types of security radiation monitors. The 'wallet card' including the main information about the implant (see above) may prove to be helpful in such a case. Considering the available experience after brachytherapy and external irradiation of prostate cancer, the risk of radio-induced secondary tumours appears to be extremely low. The demonstrated benefit of brachytherapy clearly outweighs, by far, the very limited (mainly theoretical)increase in the radiation-induced cancer risk.

Brachytherapy↗
PubMed2002

Elemental analysis of bone: proton-induced X-ray emission testing in forensic cases.

Proton-induced X-ray emission (PIXE) is a spectroscopic technique that provides the researcher with the elemental composition of a given target material. In this paper, we illustrate the utility of PIXE analysis in two forensic contexts: (1) case of cremation in which the nature of the remains is questioned and (2) cases of death by gunshot wound. In the first case, elemental analysis by PIXE reveals that the purported cremated remains are not bone. The last two cases show that radiopaque metallic residue embedded in bone is composed of lead from a projectile.

Bone and Bones↗