david dubner and his neighbors in scottsdale have filed multiple complaints with maricopa county air quality department regarding smoke and odor coming from nearby paradise memorial crematory. (kevin pirehpour\/cronkite news)<\/figcaption><\/figure>\n<\/div>\nthe county sets crematorium emission standards and includes regulations to test for machine efficiency, times of operation and allows for 2,500 tons, or 5 million pounds, of total material to be burned within a 12-month period. all complaints are individually investigated by the department, mcneely said.<\/p>\n
although rare, accidents and machine malfunctions do happen, ahearne said.<\/p>\n
a power outage march 2 interrupted an active cremation at paradise memorial and sent black smoke billowing from the chimney for 5 to 10 minutes while the system shut down, ahearne said.<\/p>\n
\u201cthat was the worst i\u2019ve seen,\u201d he said. \u201ci\u2019ve been doing this for 50 years and it was just terrible. but once it starts, there\u2019s nothing we can do.\u201d<\/p>\n
system malfunctions are not unique to paradise memorial crematory and similar situations have been reported at other crematoriums in the phoenix area.<\/p>\n
one funeral director in sun city reported a thermocouple, a sensor used to measure temperature, malfunction and told county investigators that \u201cblack smoke was visible for about 10 minutes\u201d during a cremation, according to county records. the thermocouple was replaced and the investigation has been closed.<\/p>\n
despite unexpected malfunctions and the increased of cremations, the accompanying emissions still have significantly less of an environmental impact on total air quality than unregulated fires that burn at lower temperatures around 600-900 degrees, said leif abrell, an associate research scientist with the arizona laboratory for emerging contaminants at the university of arizona.<\/p>\n