Journal of Urban Living and Health Association最新文献_第2页

Influence of Pollution from Abandoned Sulfur Mines on Riverine Environment 废弃硫矿污染对河流环境的影响

Journal of Urban Living and Health Association Pub Date : 2010-10-30 DOI: 10.11468/SEIKATSUEISEI.54.321

Fuyu Ito, Takao Nomura, K. Katahira, M. Kitagawa, H. Moriwaki

{"title":"Influence of Pollution from Abandoned Sulfur Mines on Riverine Environment","authors":"Fuyu Ito, Takao Nomura, K. Katahira, M. Kitagawa, H. Moriwaki","doi":"10.11468/SEIKATSUEISEI.54.321","DOIUrl":"https://doi.org/10.11468/SEIKATSUEISEI.54.321","url":null,"abstract":"Samples of river water and of sediment from the surface of submerged stones were taken from the Yonako River, Dodo River and Chikuma River and analyzed for ion species, heavy metals and microbial groups. The water of the Yonako and Dodo Rivers was acidic (pH 3-6) because of the influence of abandoned sulfur mines and the surrounding geological conditions. It is well known that unique and useful bacteria have been found in specific environments, such as volcanic ponds and acidic mine drains. We were interested therefore in the characteristics of microorganisms in the water and the sediment on stones in the Yonako and Dodo Rivers. The concentration of SO4 ions was high in the river water of the Yonako and Dodo Rivers (46 mg/L), and the iron concentration in the stone sediment from the Yonako River was also very high (200 g/kg) compared to that in the Chikuma River and most other rivers. In routine bacteriological agar medium culture, the number of microbial colonies in the Yonako River samples was low compared to the Chikuma River samples. However, using the genetic PCR-DGGE method, it was confirmed that there were many microorganisms living in special environments such as the Yonako River.","PeriodicalId":17443,"journal":{"name":"Journal of Urban Living and Health Association","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78131772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Recent Findings in Norovirus Infection 诺如病毒感染的最新发现

Journal of Urban Living and Health Association Pub Date : 2010-10-30 DOI: 10.11468/SEIKATSUEISEI.54.298

N. Iritani

引用次数: 0

Time-dependent Change in Symptoms of Sick House Syndrome and in Indoor Environment of Patient Dwellings 居家综合症症状与病人住所室内环境的时间依赖性变化

Journal of Urban Living and Health Association Pub Date : 2010-10-30 DOI: 10.11468/SEIKATSUEISEI.54.312

N. Hamada, Hiroki Ikeda, K. Takakura, A. Iwamae, Hiroyuki Uehara, Yoko Eitaki, T. Sugita

{"title":"Time-dependent Change in Symptoms of Sick House Syndrome and in Indoor Environment of Patient Dwellings","authors":"N. Hamada, Hiroki Ikeda, K. Takakura, A. Iwamae, Hiroyuki Uehara, Yoko Eitaki, T. Sugita","doi":"10.11468/SEIKATSUEISEI.54.312","DOIUrl":"https://doi.org/10.11468/SEIKATSUEISEI.54.312","url":null,"abstract":"Sick house syndrome (SHS), which comprises various non-specific complaints, has been reported in Japan since the 1990s. SHS patients are mainly said to have irritation of the mucous membranes and skin, often with headaches and fatigue. The present report describes time-dependent changes in indoor formaldehyde (FA) levels and in SHS symptoms. Indoor FA levels have been decreasing in homes built recently. In 2000, the effect of FA levels on the symptoms of SHS patients were studied in 71 dwellings. Similar studies were performed again in 2006 and 2007. The data were compared with the results obtained in 2000. Occupants of rooms with FA levels greater than 0.2 ppm were SHS patients; the average FA level was higher in patient houses than in non-patient houses. FA levels were highest in houses built around 1997, and decreased gradually thereafter. The average FA level decreased with occupation period, falling by about 50% between 2000 and 2007. From a diagnostic perspective, SHS patient characteristics included not only falling ill on entering the dwelling, but also recovery on leaving them. The FA levels in the dwellings of patients with such symptoms were significantly higher. The percentage of headaches and coughs correlated positively with FA level, and were lower for lower FA levels. Nevertheless, the percentage of allergies was not found to relate to FA level. The possibility of fungi as well as FA being the cause of SHS in patients examined in the study was suggested. The importance of indoor ventilation for controlling SHS symptoms was recognized.","PeriodicalId":17443,"journal":{"name":"Journal of Urban Living and Health Association","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84168981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Removal of turbidity in wastewater with coagulants based on paper sludge ash 造纸污泥灰混凝剂去除废水浊度的研究

Journal of Urban Living and Health Association Pub Date : 2010-10-30 DOI: 10.11468/SEIKATSUEISEI.54.330

Kiyoyuki Egusa, S. Kaneco, A. Dabwan, H. Katsumata, Tohru Suzuki, K. Ohta

引用次数: 1

Identification of Historical Sources of Environmental Lead Pollutions Using Lead Isotope Ratios in Sediment Cores 利用沉积物岩心铅同位素比值鉴定环境铅污染的历史来源

Journal of Urban Living and Health Association Pub Date : 2010-07-30 DOI: 10.11468/SEIKATSUEISEI.54.193

K. Katahira

引用次数: 0

Distribution of Staphylococcal Enterotoxin Genes and Methicillin-resistant Gene in Staphylococcus aureus Isolates 金黄色葡萄球菌肠毒素基因和耐甲氧西林基因的分布

Journal of Urban Living and Health Association Pub Date : 2010-07-30 DOI: 10.11468/SEIKATSUEISEI.54.213

Kaoru Umeda, Makiko Kobayashi, N. Hatayama

引用次数: 0

Integrated Pest Management of Ornamental Trees in Gardens 园林观赏树木病虫害综合治理

Journal of Urban Living and Health Association Pub Date : 2010-07-30 DOI: 10.11468/SEIKATSUEISEI.54.204

Hiroshi Tanaka

引用次数: 0

Trial of PCR to Detect Microbial Contamination in Ground Strata Underneath Osaka City PCR检测大阪市地下地层微生物污染试验

Journal of Urban Living and Health Association Pub Date : 2010-07-30 DOI: 10.11468/SEIKATSUEISEI.54.229

K. Arikawa, Y. Nishikawa

{"title":"Trial of PCR to Detect Microbial Contamination in Ground Strata Underneath Osaka City","authors":"K. Arikawa, Y. Nishikawa","doi":"10.11468/SEIKATSUEISEI.54.229","DOIUrl":"https://doi.org/10.11468/SEIKATSUEISEI.54.229","url":null,"abstract":"In the present study, we checked the subsurface layers of Osaka city for microorganisms using PCR and investigated whether genetic diagnosis could be used to estimate the microbial contamination of the ground strata. The 145 soil specimens from 2.05 to 29.35 meters underground were obtained by boring surveys at Minami Izuo park in the west of Osaka city. Microbial DNA was detected by PCR using the primer sets P3MOD/PC5B for eubacteria, NS1/NS2 for fungi, protists, and green algae, and ZL-1675/ZL2548 for E. coli ., which were able to recognize microbial DNA in the soil dose-dependently. Increase in the number of inoculated organisms led to increase in the number of amplicons in the preliminary experiment. The PCR amplicons of protists and bacteria were detected well in the top-level sand stratum, but few signals were produced by these bands, especially protists, in the clay-stratum specimens from increasing depths. However, the NS1/NS2 band reappeared in the deeper sand stratum located at around 22.5 meters underground. Protists seem to be found more abundantly in sand than clay strata because they can move easily in and with groundwater. Only one of the 145 samples showed the positive reaction to the ZL-1675/ZL2548 primer set that suggests the presence of E. coli in the ground stratum. The results indicate that microbial DNA is present in the ground strata of Osaka city; helpful would be an investigation to assess how microbes reach the ground strata and contaminate groundwater.","PeriodicalId":17443,"journal":{"name":"Journal of Urban Living and Health Association","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77958715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

大阪市における新型インフルエンザウイルスA（H1N1）の遺伝子検出検査および流行状況―2009年4月～2010年3月大阪市甲型H1N1流感病毒基因检测及流行情况- 2009年4月~ 2010年3月

Journal of Urban Living and Health Association Pub Date : 2010-07-30 DOI: 10.11468/SEIKATSUEISEI.54.219

H. Kubo

引用次数: 0

Environmental Purification with Porous Concrete of Small Particle Size Modified Using Visible-light-driven Photocatalyst 可见光驱动光催化剂改性小粒径多孔混凝土的环境净化

Journal of Urban Living and Health Association Pub Date : 2010-04-30 DOI: 10.11468/SEIKATSUEISEI.54.146

Kazuaki Masuyama, S. Kaneco, Akihiro Maegawa, H. Katsumata, Tohru Suzuki, K. Ohta

引用次数: 0