Risk assessment of human exposure to high toxic organohalogen compounds in area close to municipal solid waste incinerator

城市生活垃圾焚烧炉附近地区人体接触高毒有机卤化合物的风险评估

基本信息

批准号：
09680538
负责人：
MIYATA Hideaki
金额：
$ 1.92万
依托单位：
Setsunan University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1998
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09680538/
关键词：
Dioxin analogues PCDD PCDF Co-PCB Blood Soil MSW incinerator PCDFs Co-PCBs 廃棄物焼却土壌汚染

项目摘要

Polychiorinated dibenzo-p-dioxins (PCDD) and polychiorinated dibenzofurans (PCDFs) have been contained in the fly ash and flue gases of municipal solid waste (MSW) incinerators of various countries, including Japan. Therefore, it has been concerned for bad influence of health condition of residents near by MSW incinerators. In fact, high cancer-causing area close to Batch-type MSW incinerator has become of major interest lately ; the residential area is located within 1.2 km under the downwind from the incinerator in Ryugasaki city of Ibaraki prefecture, and it is epidemiology investigated that the death rate from cancer in this area was 42%, comparison with that (21%) in the other area. In the present work, we tried to investigate the pollution levels of soil samples and blood samples by dioxin analogues in soil samples collected from its surrounding area of the incinerator.As a result, the analysis of pollution levels by dioxin analogues in 61 soil samples collected from its surround … More ing area of the incinerator was performed. The total concentration of dioxin analogues in all soil samples on G line of leeward side were heavily polluted with the levels of 5300 to 32200 pg/g on the average of 13900 pg/g. Further, it was observed that fly ash with dioxin analogues fell on the two specific area on G line, indicating sampling point of G-0 and G-2 (0.2 - 0.5 km), and sampling point of G-6 and G-7 (1.6- 1.8km). With respect to TEQ concentration, that in the samples of G-0 and G-l were 252 and 211pg/g, respectively. This incredible pollution levels indicated that the health of residents near sampling points of G-0 and G-l are extremely in a state of danger. On the other hand, it was clear that all samples on E line of the windward side except the nearest E-0 sampling point were little contamination. Further, we also surveyed the levels of 34 blood samples of the residents. As a result, it was observed that the average levels of men and women were 67.9 pgTEQ/g lipid and 85.1 pgTEQ/g lipid, respectively, indicating 3-4 fold on the average level of general person in Japan. Therefore, this heavily human pollution in area close to the facilities is considered to be brought by direct inhalation of dioxin analogues from flue gas, or by indirect intake of vegetables contaminated by flue gas. Less

包括日本在内的各国城市固体垃圾焚烧炉的飞灰和烟气中均含有多氯二苯并对二恶英（PCDD）和多氯二苯并呋喃（PCDF），因此，人们担心其会造成不良影响。垃圾焚烧厂附近居民的健康状况事实上，间歇式垃圾焚烧厂附近的高致癌区最近已成为人们关注的焦点。茨城县龙崎市的居民区位于焚烧厂下风向1.2公里范围内，流行病学调查显示，该地区的癌症死亡率为42%，而其他地区的癌症死亡率为21%。在本工作中，我们尝试调查焚烧炉周边土壤样本中二恶英类似物对土壤样本和血液样本的污染水平。对焚烧炉周围区域采集的61个土壤样品中二恶英类似物进行了检测，背风侧G线所有土壤样品中二恶英类似物的总浓度为5300至32200pg/。 g 平均值为 13900 pg/g 此外，观察到含有二恶英类似物的飞灰落在 G 线上的两个特定区域，表明取样。 G-0和G-2采样点(0.2-0.5km)，G-6和G-7采样点(1.6-1.8km)。关于TEQ浓度，G-0和G-1样品中的TEQ浓度。分别为252和211pg/g，这一令人难以置信的污染水平表明G-0和G-1采样点附近居民的健康处于极度危险状态。除最近的E-0采样点外，迎风面E线的所有样本均很少污染。此外，我们还对居民的34份血液样本进行了检测，结果发现，男性和女性的平均水平。女性的脂质水平分别为 67.9 pgTEQ/g 和 85.1 pgTEQ/g 脂质，是日本普通人平均水平的 3-4 倍。因此，设施附近地区的严重人类污染被认为是造成的。直接吸入烟气中的二恶英类似物，或间接摄入受烟气污染的蔬菜所致。