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CO and Particle Pollution of Indoor Air in Beijing and Its Elemental Analysis
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作者 J.N.WANG Y.ZHANG 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 1990年第2期132-138,共7页
Three representative types of houses in Beijing were selected and, in each type, smoking and nonsmoking households were compared. IP, RP. and CO concentrations in the living room and kitchen were monitored during each... Three representative types of houses in Beijing were selected and, in each type, smoking and nonsmoking households were compared. IP, RP. and CO concentrations in the living room and kitchen were monitored during each season. and the level of COHb in the heads of the households were measured. The study showed that indoor air pollution was rather severe, especially during winter. when paniculate concentrations markedly exceeded the standard and CO concentration was as high as 47 ppm. Indoor air pollution was closely related to the type of house, particularly to the mode of heating. In houses. of the same type, pollution improved greatly after central heating facilities were installed. Analysis of 30 elements revealed that pollution was typically caused by coal burning. aggravated by dusty wind, but high indoor Pb levels were probably due to the use of LPG for cooking. In our study the effect of cigarette smoking was sometimes masked by the severe indoor pollution. (C)1990 Academic Press, Inc. 展开更多
关键词 Be In CO and Particle pollution of Indoor Air in Beijing and Its Elemental Analysis COHb
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Detection of Relation between V and Zn in Two Species of Mollusks and the Surrounding Water in the Marshes of Southern Iraq
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作者 Abdal-Kader Saeed Reyam Naji Ajmi Huda Farooq Zeki 《Journal of Environmental Science and Engineering(A)》 2013年第12期753-758,共6页
Elements (vanadium and zinc) were determined in the two most abundant species of shell mollusks (Unio tigridis and Fiviparous bengalensis) and the water where they live in five stations in the Iraqi marshes. The s... Elements (vanadium and zinc) were determined in the two most abundant species of shell mollusks (Unio tigridis and Fiviparous bengalensis) and the water where they live in five stations in the Iraqi marshes. The study of concentrations elements was a target organ for aquatic environmental. Comparison between the mean concentrations of the elements in the water concentration levels of all studied elements was the highest with the mollusks. The results show that the station 5 is where the highest concentrations are found in water and in the two species. There is a significant correlation (P = 0.224) for concentrations of vanadium and P = 0.735 for zinc in two species of mollusks relative to their concentrations in surface water. All significant differences were accepted at a level of P 〈 0.05. The potential uptake of elements including V and Zn, as Viviparous bengalensi 〉 Unio tigridis, The mechanism for elements uptake determined by water for organisms confined to the contaminated areas seemed to be largely independent of species, mollusks demonstrated a significant positive relationship with water. These results have important implications for the utility of marshes biota as subjects for elements monitoring program. 展开更多
关键词 Iraqi marsh elements pollution mollusks water.
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