Mercury Emission from Crematory
スポンサーリンク
概要
- 論文の詳細を見る
Anthropogenic sources on mercury emission have significant impact on global pollution. Therefore, it is required to find unknown sources and to assess the emission from the sources. Since limited data on mercury emission from crematory is available all over the world, we focused on the emission from crematory in Japan and its data was examined. Total mercury concentration in stack gas was 4.3μg/m<SUP>3</SUP><SUB>N</SUB>, which consisted of Hg<SUP>0</SUP> with 2.2μg/m<SUP>3</SUP><SUB>N</SUB> and Hg<SUP>2+</SUP> with 2.1μg/m<SUP>3</SUP>N. When the concentration was normalized by 12% O<SUB>2</SUB>, the total mercury concentration became 29.2μg/m<SUP>3</SUP><SUB>N</SUB>, which was relatively higher than that in stack gas of municipal solid waste incinerator. Considering the behavior of mercury in cremation, it was confirmed that the mercury in stack gas was originated from the mercury in dental amalgam. The amount of mercury emission was calculated to be 51.8mg/cremateion by using the total concentration and flow gas rate. Furthermore, the annual amount of mercury emission from crematory in Japan was estimated to be 57.0kg/year by using total number of corpse in 2005.The emission amount was considerably lower than that of estimated in UK. In the view point of the statistics on dental care and population movement, it is also predicted that the total emission amount from crematory is 1670-2380kg/year. There was a large difference between the emission based on the measured data and on the statistics. According to the estimation based on the statistics, the amount of mercury emission from crematory will supposedly increase by 1.3-1.8 times from 2000 to 2025.
- 社団法人 大気環境学会の論文
社団法人 大気環境学会 | 論文
- Spatio-Temporal Variations of Daily Average Concentration of NO2 in an Area with Trunk Roads
- Autoxidation of Methyl linoleate Initiated by Combustion Smoke of Combustibles
- Spatio-Temporal Variations of Daily Average of NO2Concentration in the Vicinity of a Crossroads
- Long-lived Gas-phase Radicals from Combustion
- Effective Combinations of Trapping Adsorbents and Extractive Solvents for Measuring Airborne Pesticides