International Journal of Environmental Monitoring and Analysis

Volume 5, Issue 3, June 2017

  • Heavy Metals in Paddy Soils of Brunei Darussalam and Their Relationship with Selected Soil Properties

    Kyi Pyar Zin, L. H. Lim, J. M. R. Sarath Bandara, H. M. Thippeswamy

    Issue: Volume 5, Issue 3, June 2017
    Pages: 64-72
    Received: Mar. 07, 2017
    Accepted: Mar. 23, 2017
    Published: Apr. 13, 2017
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    Abstract: In Brunei Darussalam, available information of heavy metals in agricultural soils is sparse and hence a baseline study was carried out on soils in rice growing areas. In this study, trace elements as well as common soil characteristics were determined from twenty six of major rice fields such as Wasan, Limau Manis, Selapon and Lot Senkuang. Al, Fe,... Show More
  • Characteristics of Atmospheric Trace Gases, Particulate Matter and Heavy Metal Pollution in Karachi, Pakistan

    Durdana Rais Hashmi, Akhtar Shareef, Razia Begum

    Issue: Volume 5, Issue 3, June 2017
    Pages: 73-82
    Received: Nov. 17, 2016
    Accepted: Nov. 30, 2016
    Published: Apr. 24, 2017
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    Abstract: This study was carried out for determination of Aerosol particulate matter (PM10), trace gases (SO2, NO2, CO) and heavy metals (Zn, Pb, Mn, Cu, Ni and Cd) in the atmospheric air of Karachi city. Sampling has been done at thirteen locations between during the year of 2014. The total average concentrations of SO2, NO2, CO and PM10 were 65.9, 98.7, 1.... Show More
  • Indoor and Outdoor Concentrations of Bioaerosols and Meteorological Conditions of Selected Salons in Four Areas of Ibadan North Local Government Area

    Alli Abosede Sarah, Ana Godson Rowland E. E.

    Issue: Volume 5, Issue 3, June 2017
    Pages: 83-90
    Received: Apr. 03, 2017
    Accepted: Apr. 18, 2017
    Published: Jun. 07, 2017
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    Abstract: Microorganisms are ubiquitous in the atmosphere but their concentrations are significantly affected by specific environmental factors. Thus, the characterization of bioaerosol levels in both the indoor and outdoor environment have become an important issue due to their adverse health effects. Therefore this study assessed the indoor and outdoor con... Show More
  • Improved Processing Research on Arc Tooth Cylindrical Gear

    Zhang Zheng, Tang Rui

    Issue: Volume 5, Issue 3, June 2017
    Pages: 91-95
    Received: Feb. 24, 2017
    Accepted: Mar. 23, 2017
    Published: Jun. 29, 2017
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    Abstract: Based on the analysis of arc tooth cylindrical gear forming principle and on the basis of existing processing methods, also combined with the principle of ordinary milling knife plate rotating, This paper puts forward an improved double-edged milling method of the Arc tooth cylindrical gear, which include two aspects: one is the double edged sword ... Show More