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人間の食行動と健康
泉谷 希光 Human Food Behavior and Health
Maremitsu IZUMITANI |
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A study on the nutritional ecology and epidemiology surveyed in farming region in Yamagata, for 30 years since 1955, and in Mexico OAXACA Indio District for 20 years since 1972. As a result the following problems were pointed out.
(Received: June 15, 1 995 Accepted: June 19, 1995) |
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農村で30年、メキシコインディオ居留地で20余年に渡って、栄養生態学・疫学的手法を用いて食行動と健康について調査し、次のような問題点が指摘された。
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(J.Human and Living Environment), 2(1), 2/7, 1995 | ||||||
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建築環境と健康
楢崎 正也 Indoor Environment and Human Health
Masaya NARASAKI |
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First, I mentioned indoor environment. Second, I urged the need of reassessment of the regulation of sunshine, natural lighting and ventilation of living areas under the Building Standard Law, to prevent environmental deterioration. Next, I suggested a proper way of maintaining the air-tightness of buildings in relation to energy conservation. And, as it was hard to evaluate a healthy and pleasant environment, checking on whether the minimum requirements for all environmental factors in buildings are secured or not, was proposed. Finally, I gave my personal comment on a healthy house and healthy ways of living at home in Japan. (Received: March 31, 1995 Accepted:June 14, 1995)
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先ず、建築環境について説明している。次に、環境悪化防止の目的で設けられた建築基準法における日照と居室の採光および換気の規制について再検討の必要性を説いている。更に、省エネルギーに関連して建物の気密性のあり方についての提言をしている。続いて、健康で快適な環境評価は難しく、各環境要素の最低限必要な許容限界値を建築が先ず確保しているかどうかの調査を提案している。最後に、日本における健康な住宅あるいは健康な住まい方についての私見をのべている。 | ||||||
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(J.Human and Living Environment), 2(1), 8/12, 1995 | ||||||
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寒地の生活環境とエネルギー
落藤 澄、横山 真太郎、中村 真人 Indoor Climate and Energy Conservation in Hokkaido
Kiyoshi OCHIFUJI, Shintaro YOKOYAMA and Masato NAKAMURA |
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Recently, air-tight energy-efficient houses have been increasing in Japan, especially in Hokkaido, the most nothern island. The new houses have a comfortable thermal environment and consume less energy for heating than the existent ones. It is, however, assumed that indoor air quality is debased in terms of its effects on human health. We discuss present and future problems of indoor environment and energy consumption in Hokkaido. We have been making simultaneous measurements of the multi-components of indoor air quality in Japanese houses composed of three fabric types since 1986 Measured items: 1) air temperature, 2) air humidity, 3) carbon monoxide, 4) carbon dioxide, 5) suspended particles, 6) airborne bacteria, 7) airborne fungi and 8) radon daughters. Radon was measured with the electrostatic integrating monitor method. We have investigated energy consumption for dwelling and discuss energy conservation for heating in the terms of thermal insulation and air tightness. We also discuss how to use solar energy, waste heat and other untapped energy. These utilization of these types of energy for heating and cooling should be taken into consideration when planning infrastructures. (Received: April 13, 1995 Accepted: May 29, 1995) |
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最近の寒地建物の気密性能はよくなり、省エネルギーならびに室内温熱環境は著しく改善された。しかし、その反面、室内で発生する水蒸気、臭気、燃焼ガス、有害物質などが室内に蓄積され、空気環境は一般に悪くなる傾向にある。著者らが実測を行ってきた対象住宅は新旧を取り混ぜた住宅19戸、2年間の四季を通じて19戸に対する調査例数58であり、測定項目は気温、湿度、CO2、CO、浮遊粉塵、最近、真菌、ラドン嬢核種およびラドンの9項目である。それらの分析結果をもとにして、室内環境の現状とその対策を含めた将来展望を述べる。一方、生活環境とエネルギーの消費量との関係、北海道における住宅の省エネルギーの考え方と高断熱・高気密性の効果について紹介する。また、自然エネルギー、排熱、未利用エネルギーの利用の可能性を検討し、エネルギー資源利用率なる概念を導入して評価するとともに、個別の住宅と同時にまちづくりのなかで新しいエネルギー供給体系をつくるという発送も必要であることを述べる。 | ||||||
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(J.Human and Living Environment), 2(1), 13/21, 1995 | ||||||
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人体表面の温度点分布(第1報) 冷点分布密度の部位差
李 旭子、田村 照子
Thermal Spot over Human Body Surface (Part I )
Uk-ja LEE and Teruko TAMURA |
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In order to clarify the factors contributing to the regional difference in cold sensitivity, cold spot distribution over the human body was investigated by a mapping method in a climatic chamber (28 ± 0.5℃). Sammi temperature apparatus, the tip of which was controlled at a temperature of 10 ± 0.5℃ was used for the stimulator. The subiects were 9 femele students and the measurements were conducted on the 25 body regions. The results showed that cold spots were distributed in the 8-23 per cm2 range, the highest on the face and the lowest on the leg. The correlation coefficients between cold sensitivity and cold spot distribution were highly significant (r=0.7-0.8) excluding the palm and sole. The percent of coincidence among two maps obtained on the same area and in the same subject in a I hour interval showed that the mapping method was reliable for evaluating cold spot distribution.
(Received: September 30, 1994 Accepted: December 21, 1994) |
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人体表面における冷感覚の部位差に寄与する要因を明らかにする目的で、マッピング法を用いて、人体表面の冷点分布を測定した。被験者は9名、人工気候室は28±0.5℃に調整された。冷刺激負荷には、サンミ温覚計の先端部分を直径0.5mm、先端温度10±0.5℃に改良したものが用いられた。結果、
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(J.Human and Living Environment), 2(1), 30/36, 1995 | ||||||
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人体表面の温度点分布(第2報) 冷点分布密度の部位差
田村 照子、李 旭子
Thermal Spot over Human Body Surface (Part ll)
Teruko TAMURA and Uk-ja LEE |
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Warm spot distribution over the human body was examined by means of a newly developed stimulator, the tip temperature of which was controlled at 40 ± 0.5℃ by circulating hot water. The sub-iects were 10 female students and the measurements were conducted on 25 body regions. The tests showed that warm spots were distributed in the range of 1-6/cm2, high in the face, nape and forearm, and low in the leg. The warm spot distribution had a close relationship with the warm sensitivity over the dorsal surface of the body but not over the ventral surface. The reliability of warm spot mapping was also confirmed in th' t d It was clarified th t the results of warm spot distribution were hi hly in Is s u y. a fluenced by the location of the map and this should be the reason for the large individual difference in warm spot density.
(Received: September 30, 1994 Accepted: December 21, 1994) |
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人体表面の温点分布密度を新しく開発された温刺激負荷装置を用いて調査した。装置は、先端の温度が循環水によって40±0.5℃に調整されるものである。被験者は10名、測定部位は25部位である。結果として、温点は1〜6/cm2の範囲に分布し、顔面、後頸、前腕で高く、下腿で低い値を示した。温点密度は、人体後面において温感受性と密接な関係を示したが、前面においては、低い関係しかみられなかった。本研究においては、温点マッピングの信頼性も確認され、温点の結果にはマップの位置が大きく影響すること、このことが温点の個体差や測定誤差の理由であろうと考察された。 | ||||||
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(J.Human and Living Environment), 2(1), 37/42, 1995 | ||||||
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高齢者の温熱感覚特性に関する簡易温冷覚刺激装置を用いた検討
都築 和代
A Study on the Thermal-Sensitivity Characteristics of
Kazuyo TSUZUKI-HAYAKAWA |
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This study was conducted to investigate the thermal-sensitivities of the elderly. A simple th mostimulator was used for making a quantitative assessment of the thermal sensitivity of the skin. Wietrh this apparatus, temperatures at which the subjects felt either warm or cold were recorded, and the difference between the two temperatures was termed the thermal discrimination threshold. Ambient air temper ature and skin temperatures at the finger, palm and back of the hand were also measured. The clothing insulation for each individual subject was estimated from his/her particular clothing ensemble. Th were no significant differences in the warm, cold and thermal discrimination thresholds between the ol~:er and control groups, in spite of the fact that the skin temperature at the back of the hand and clothing in sulation for the older group were significantly lower and higher respectively than those for the control group. The relationships between the cold threshold and both the air temperature and skin temperature at the back of the hand were observed to be significant in the case of the older group. (Received: June 5, 1995 Accepted: July 25, 1995)
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本研究は、高齢者の温熱感受性を調べるために行われた。皮膚の温熱感受性を定量化するために簡易温冷覚刺激装置が用いられた。この装置を使って、被験者の温冷覚閾値とその差から求められる温度差識別閾値を測定した。また、周囲気温や手の指先、手掌、手背などの皮膚温もまた測定された。個々の被験者の衣服断熱性が、それぞれの着用している重ね着から推定された。主な結果は、高齢群の方が対照群よりも手背皮膚温は有意に低く、着衣量は有意に多いにも関わらず、温冷覚閾値、温度差識別閾値に関しては、高齢群と対照群との間に有意な差を認めなかった。高齢群においてのみ冷覚閾値と手背皮膚温および周囲気温との有意な相関関係が認められた。 | ||||||
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(J.Human and Living Environment), 2(1), 43/47, 1995 | ||||||
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脚部放射加熱時の温熱快適性に関する研究
寺野 真明*、片山 弘典*、釜谷 周滋*、久野 覚** Study on Thermal Comfort When Legs are Heated by Radiation
Masaaki TERANO*, Kousuke KATAYAMA* , Syuuji KAMAYA*, Satoru KUNO** |
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We investigated thermal comfort during leg heating with hot panels and performed experiments to determine which factors affect thermal comfort. We especially focused our attention on two types of thermal non-uniformities caused by heating with hot panels: the non-uniformity between the up-per and lower halves of the body and 2) the shin and calf. We attempted to explain thermal comfort in terms of these factors. Three men and three women participated in the experiments. Three to seven heat-ing panels were prepared for the experiments. A main panel was placed in front of the participant's legs. Others were placed on the side of participant's legs. By changing the number of panels (30 cm, 60 cm and 90 cm), we controlled thermal non-uniformity between shin and calf. Surface temperatures of the panels were also changed (50℃, 60℃ and 70℃). The air temperature in the climatic chamber was set at 17℃, 19℃ and 21℃ with a relative humidity of 500/0. Thermal sensation vote, thermal comfort vote and thermal sensation of various parts of the body were measured. In order to express thermal non-uniformities, radiant temperature asymmetry (RTA) and plane radiant temperature (PRT) were also measured. The following results were obtained:
(Received: March 31, 1995 Accepted:July 25, 1995) |
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暖放射パネルによる脚部加熱時の温熱快適性と、その影響要因について実験的に検討した。人体の上半身─下半身方向と、すね─ふくらはぎ間に発生する熱的不均一性に着目し、これらを用いて温熱快適性の説明を試みた。実験には数枚の暖放射パネルを用いた。主パネルは脚部前方に、他は脚部側方に設置し、側面長さを30、60、90cmと変化させ、すね─ふくらはぎ間の熱的不均一性を変化させた。パネル表面温度は,50、60、70℃、室内空気温度は17、19、21℃、相対湿度50%とした。被験者には健康な男女6名を用い、温冷感、快適感、様々な部位別感覚量と人体各部の放射の不均一性(RTA)および平面放射温度(PRT)を測定した。以下に得られた結果を述べる:
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(J.Human and Living Environment), 2(1), 48/57, 1995 | ||||||
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使用者からみた合併処理浄化槽の設置理由と設置後の評価 ─し尿処理をくみ取りから合併処理浄化槽にした場合─
小林 定教 Reasons for Installation and Evaluation of Onsite Domestic Sewage Treatment Tank: the Change from Night Soil Collection to Onsite Domestic Sewage Treatment Tanks
Sadanori KOBAYASHI |
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In spite of demands for modernization of living styles and comfortable living environments, some living-related facilities have not yet been adopted nationwide. Among them are flush toilet and sew-age treatment facilities, for which implementation is urgent. I began making field surveys of urban and surrounding areas and depopulated areas of the Bingo district in western Japan, which features topog-raphical variations, for the purpose of collecting fundamental data about the propagation of onsite domes-tic sewage treatment tanks and water preservation over the coming years. The survey took into account the effects of the propagation of onsite domestic sewage treatment tanks on daily life, changes in attitudes towards the environment (which is gaining a lot of attention these days) and usage problems with onsite domestic sewage treatment tanks from the users' standpoint. Onsite domestic sewage treatment tanks were highly favored as countermeasures to water pollution, and a way to improve household hygiene, reduce odors, improve living conditions and the environment etc. while the reduction of installation and maintenance costs and various other improvements were also in high demand.
(Received: March 30, 1 995 Accepted: July 25, 1 995) |
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生活の近代化、快適な生活環境への要請は強いが、いまだ満たされていない生活設備の一つとして、水洗設備、生活雑排水処理設備があげられ、その早急な実現が求められている。本研究は、使用者からみた合併処理浄化槽の設置に関する問題点ならびに設置後の評価をみるため、その設置者を対象にアンケート調査を行い、全回答の内、設置前はし尿処理をくみ取りにより行っていた人の回答について考察したものである。アンケート調査は、地形の変化に富む広島県東部の都市周辺、および過疎地域の浄化槽使用者を対象に、現在問題となっている環境に対する関心度、浄化槽の設置が住環境に及ぼした影響、および浄化槽の評価・使用上の問題点に関して行った。その結果をみると、小型合併処理浄化槽の設置については、水質汚濁対策、家の中の衛生面、臭気の減少、生活環境の改善などにおいて高い評価を得る一方、設備費、維持管理費の低廉化および種々の改善が望まれている。 | ||||||
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(J.Human and Living Environment), 2(1), 58/66, 1995 | ||||||
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台所における生ごみ臭の実態と評価
光田 恵*、磯田 憲生**、久保 博子**、梁瀬 度子** Actual State and Evaluation of Kitchen Garbage Odor in the Kitchen
Megumi MITSUDA*, Norio ISODA**, Hiroko KUBO** and Takuko YANASE** |
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We surveyed detached houses and multiple dwellings to show the actual state of garbage odor in the kitchen. The survey included measurements of air temperature, relative humidity and globe temperature in the kitchen, temperature and odor sensor value at the place of garbage storage. Housewives were questioned aubot the time used for household work in the kitchen, storage conditions of garbage, odor sensation (odor intensity, unpleasantness, quality of odor and tolerance). We measured odors using two kinds of odor sensors. One of them responds to the odor of hydrogen sulfide, and its measured value is correlated to evaluations of odor sensation. The length of time when the odor sensor value exceeded the acceptable level of garbage odor in the kitchen was influenced considerably by the storage time of the garbage and the state of storage container. The total length of time exceeding the acceptable level was about one third of the period measured for the house as a whole.
(Received: May 1 6, 1 995 Accepted.' July 25, 1 995) |
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集合住宅と一戸建て住宅を対象として、台所における生ごみ臭の実態把握を行うために実測調査を行った。測定は夏季に行い、台所の温度、湿度、グローブ温度、生ごみ仮置きしている場所の温度、生ごみ置き場付近のニオイセンサ値を測定し、主婦に、台所での佐合状況、生ごみの廃棄時間、台所に生ごみを仮置きする時間や容器の種類、臭気感覚(臭気強度、不快度、臭気の質、容認性)を申告してもらった。ニオイセンサは、主に硫化水素とアンモニア臭に反応する2種類を用いたが、硫化水素臭に反応するニオイセンサは、測定値と生ごみ臭の臭気感覚評価と対応が見られた。強度評価とニオイセンサ値の間系から、各住宅の台所での生ごみ臭の発生が許容レベル以上である時間を検討すると、生ごみを仮置きする時間や仮置きに用いる容器の開閉状態との関連が見られた。また、一般的な住宅で許容レベルを超えている時間の合計は、調査期間のおよそ1/3である。 | ||||||
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(J.Human and Living Environment), 2(1), 67/74, 1995 | ||||||
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運動による発汗後の水分補給の実態と飲食指導
島村 実花*、中尾 芙美子**、金子 佳代子*** Fluid Replacement after Sweating Caused by Physical Exercise and Guidance of Eating and Drinking after Exercise
Mika SHIMAMURA*, Fumiko NAKAO**, Kayoko KANEKO*** |
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Exp. I: Sweat rate, fluid intake and water debt during and after exercise were estimated in 62 university athletic club students. Their water intake in meals after exercise was also calculated. Exp. II: Effect of the kind of drink {a: tea (no sugar or sodium), b, c: carbohydrate-electrolyte beveragel, 2, d: soft drink (sugar), e: carbonated beverage (sugar), f: coffee with milk (sugar) } for one hour after exercise and the amount of each beverage was compared and temperature of drinks (10℃, 70℃) and ambient temperature (25℃, 35℃) were estimated. Exp. 111: Effect of salt content (5.0g, 2.5g) of meal on fluid intake until going to bed were estimated after exercise. The results were as follows:
(Received: April 2, 1995 Accepted:July 25, 1995) |
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大学運動部員を対象に、運動中及び運動後の水分摂取量の実態を調査し、飲食の記録から食事中水分量も算出した。飲み物の摂取量への嗜好の影響を考え、(a)麦茶(糖分、ナトリウムなし)(b)糖分含有電解液1(c)糖分含有電解液2(d)清涼飲料水(糖分)(e)炭酸飲料(糖分)(f)コーヒー飲料(糖分)(g)牛乳の運動後1時間の摂取量を、また、食塩5gの普通食と2.5g低塩食を食べた後〜就寝までの水分摂取量を比較した。結果は以下のようである。
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(J.Human and Living Environment), 2(1), 75/81, 1995 | ||||||
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我国住宅の間器量の実態値の推定
池田 耕一
Estimation of the Present Status of Ventilation Rates in
Koichi IKEDA |
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It is now a matter of course to estimate the ventilation rate of each room in the design of build-ing having a central HVAC system because the ventilation rate is widely recognized as one of the most important factors affecting indoor air quality and energy consumption rate. But the ventilation rates of actual buildings in practical use by occupants are not necessarily well known. Such a case is some time happen that the actual ventilation rate is almost zero because of the unexpected use of the occupants while enough rate is assured in the designed value. As it is so even in the case of buildings of which ventilation rates are estimated in the design procedures, we are almost ignorant of the ventilation rates of residential buildings having no HVAC systems. The published data measured in residential buildings are reviewed in order to know the ranges of the ventilation rates expected in actual residential environments. I also have studied about future subjects for the ventilation rate estimation researches and practical problems of the measurements.
(Received: April 3, 1 995 Accepted:June 28, 1 995) |
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ほとんど全ての人がその生活時間の大半以上を過ごすにもかかわらず、換気量に関しては、設計段階での検討すらほとんど行われることのないわが国の住宅における換気率の実態把握を推定することを目的として、今までに実施された換気率に関する国内外の主要な実測結果の文献検索を行った。また、換気をめぐる諸問題の考察も行った。 | ||||||
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(J.Human and Living Environment), 2(1), 82/91, 1995 | ||||||
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人体モデルを用いた不均一環境の評価に関する研究 その1.放射解析人体モデルの作成と被験者実験
宮崎 靖子、斉藤 信、瀬下 裕
A Study on Evaluation of Non-uniform Thermal Environments by Human Body Model
Yasuko MIYAZAKI, Makoto SAITO, Yu SESHIMO |
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This paper aims to make the human body model for the simulation of the effect of non-uniform radiation on the human body. The authors decide the shape and size of the human body model, and verify that the angle factors between the model and walls correspond to those for actual persons. The radiant panel is installed around a subject seated in the center of the model room. The temperature of the surface of the radiant panel was set at four different degrees: 10, 25, 40 and 55℃. As for results, the thermal sensation differed from PMV in non-uniform radiation under certain conditions. As the result of evaluation by the human body model, this may be caused by the imbalance in the radiant heat flux in each part of the human body.
(Received: April 28, 1 995 Accepted: July 25, 1 995) |
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本研究では、人体への不均一放射の影響を解析するための人体モデルを作成した。人体モデルの妥当性を確認するため、Fangerの形態係数データと比較した。さらに、不均一放射環境下における被験者申告実験を行い、被験者申告値とPMV値を比較検討した。その結果、均一環境では被験者申告値とPMV値は良く一致していたが、不均一放射環境下では申告値とPMV値に大きなずれがみられるものが存在した。人体モデルによる部位別評価を行った結果、このずれは人体各部位に入射する放射熱量の不均一さによって引き起こされることが推測され、人体モデルによる不均一放射環境評価の可能性が見いだされた。 | ||||||
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(J.Human and Living Environment), 2(1), 92/100, 1995 | ||||||
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