0
  1. Trang chủ >
  2. Khoa Học Tự Nhiên >
  3. Môi trường >

An assessment of some heavy metal elements in crude oil

An assessment of some heavy metal elements in crude oil

An assessment of some heavy metal elements in crude oil

... hydrocarbon-remediating plant since it failed to germinate in the crude oil impacted soils. Out of the five heavy metals (or soil quality indicators) used to assess the efficacy of the legumes, ... prospecting and mining as well as oil spillages are also major sources of these metals [3]. The ecological significance of heavy metals, in recent times, is traceable to the growing awareness of ... weathering of rocks, and leaching or degassing (in the case of mercury). Other activities that could contribute to excessive release of these metals into the environment include burning of fossil...
  • 6
  • 357
  • 1
báo cáo sinh học:

báo cáo sinh học:" An assessment of the eye care workforce in Enugu State, south-eastern Nigeria" doc

... especially in com-parison to the VISION 2020 goals of WHO. Findings areintended to inform health policy formulators in monitor-ing and planning for further interventions in their existingprogrammes ... the global initiativefor the elimination of avoidable blindness launchedjointly by the World Health Organization and the Interna-tional Agency for the Prevention of Blindness with an international ... the global initiative for the elimination of avoidableblindness launched jointly by the World Health Organization and the International Agency for thePrevention of Blindness with an international...
  • 6
  • 471
  • 0
A meta analysis and risk assessment of heavy metal uptake in common garden vegestable

A meta analysis and risk assessment of heavy metal uptake in common garden vegestable

... concentration of Cd 43% in the roots of oats. Trace metal deficiencies in plants have been associated with increases in heavy metal uptake (Khan and Frankland 1983). Soil pH significantly influences heavy ... immobilization of heavy metals, and there is very little leaching through the soil profile (Khan and Frankland 1983). Immobilization can increase the Cd concentration of the soil and ultimately ... production of US pennies. Zinc is also used in electroplating, smelting, and ore processing (ATSDR 1994). Mine tailings and drainage from mines can contain high concentrations of zinc (Cobb...
  • 64
  • 482
  • 0
An assessment of the availability of household biogas resources in rural China

An assessment of the availability of household biogas resources in rural China

... resources in China. Beijing: University of People’s of China Press; 1993 [in Chinese]. [7] H. B. Xu. The Principle of Analytic Hierarchy Process.Tianjin: Tianjin University Press;1986 [in Chinese]. ... manures is estimated using the number of animals and the annual dry excrement production of one animal [13]. Manure resources in China in 2006 are included in Table 4 [14]. Data in Table 4 indicates ... Recycling Agricultural Engineering Technology of Shaanxi Province, Yangling, Shaanxi Province, 712100, PR China. 3 College of Agronomy, Northwest A&F University, Yangling, Shaanxi Province,...
  • 10
  • 710
  • 1
AN EVALUATION AND APPLICATION OF SOME MULTIMEDIA PRESENTATION SOFTWARE IN DESIGNING ENGLISH LECTURES AT FIT   TNU

AN EVALUATION AND APPLICATION OF SOME MULTIMEDIA PRESENTATION SOFTWARE IN DESIGNING ENGLISH LECTURES AT FIT TNU

... NATIONAL UNIVERSITY - HANOI COLLEGE OF FOREIGN LANGUAGESPOST-GRADUATE DEPARTMENTDƯƠNG THỊ HỒNG AN AN EVALUATION AND APPLICATION OF SOME MULTIMEDIA PRESENTATION SOFTWARE IN DESIGNING ENGLISH LECTURES ... bài giảng môn tiếng Anh tại Khoa Công nghệ thông tin - Đại học Thái Nguyên)MINOR PROGRAMME THESISENGLISH TEACHING METHODOLOGYCODE: 60.14.10Supervisor : DO TUAN MINH, PhDHANOI - 2009...
  • 2
  • 456
  • 0
Báo cáo

Báo cáo " An assessment of healthcare system accessibility of local communities in Yen Chau District, Son La Province " pot

... An assessment of healthcaresystemaccessibility of localcommunities in YenChauDistrict,SonLaProvinceTranAnhTuan1,*,TranVanTuan1,LeTuan An 2,HoangThanhTung11College of Science,VNU2CentreforEnvironmentalStudies,Alliance of VietnamCooperativeReceived10October2007;received in revisedform28November2007Abstract.SonLaHydroelectricProjecthasdesignedtheplantwiththecapacity of 2400MW.Itwillprovideelectricityfornotonlythenorthwestregionbutalsofortheotherregions of Vietnam.TheprojectwasapprovedbytheVietnamNationalAssemblyonDecember16th,2002, in detail:SonLaHydroelectric ... S. Liu, Analysis of the  impact of theMRTsystemonaccessibility in Singaporeusing an integrated GIS tool, Journal of TransportGeography12(2004)89.TranAnhTuanetal/VNUJournal of Science,EarthSciences23(2007)265‐272268grid ... newquantitativeandcoremethod.Accessibilityisthebroadconceptandithasa wide range of applications, in particular:urban studies (housing planning, socialfacilities planning...
  • 8
  • 434
  • 1
In the Middle of the Fight - An Assessment of Medium-Armored Forces in Past Military Operations doc

In the Middle of the Fight - An Assessment of Medium-Armored Forces in Past Military Operations doc

... remaining German machine guns.21Cambrai also witnessed the emergence of antitank doctrine and weapons. By the end of the war, improvements in tank obstacles, antitank guns, and antitank ... the attacking infantry and only nine of these covered the distance to the German lines. Nevertheless, the British tanks caused panic in the German ranks and their impressive performance caused ... or mechanical means (including photocopying, recording, or information storage and retrieval) without permission in writing from RAND.Published 2008 by the RAND Corporation1776 Main Street,...
  • 337
  • 344
  • 0
Heavy metal contamination in soils of urban highways (comparision between runoff and soil concentration

Heavy metal contamination in soils of urban highways (comparision between runoff and soil concentration

... with an area of 15 × 20 m on I-75 in Cincinnati, during five rainfallevents in 1995. Their results showed that the event mean concentrations (EMC) HEAVY METAL CONTAMINATION IN SOILS OF URBAN HIGHWAYS ... 62 30 HEAVY METAL CONTAMINATION IN SOILS OF URBAN HIGHWAYS 309Figure 4. Cluster analysis.Figure 5. XRD pattern of XS1 taken from 1–5 cm depth. HEAVY METAL CONTAMINATION IN SOILS OF URBAN HIGHWAYS ... proportion of total metal in the exchangeable fraction whereas Cu is mainly in the stronglybound organic and residual phases. Hewitt and Candy (1990), examined levels of Pb, Cd and Zn in soil and dust...
  • 22
  • 518
  • 0

Xem thêm

Từ khóa: an assessment of developments in the empirical literature on contractingwoman called back from mammography screening for an assessment of the asymmetric density in the umonitoring of radionuclide and heavy metal accumulation in sediments algae and biota in black sea marine ecosystems5 an assessment of the likely place of the translation in the target language culture or disciplinefood insecurity and hunger in the united states an assessment of the measure iom 2006heavy metal pollution in soil and plants at bone char sitealgae as a feedstock for biofuels an assessment of the current status and potential for algal biofuels productiontimedelay systems an overview of some recent advancestimedelay systems an overview of some recent advances and open problemsheavy metal pollution in soil pdfheavy metal analysis in soil pdfan assessment of organizational openness and government effectiveness 1997 to 2001methodology an overview of approach and research sites in the uk australia and pakistanassessment of mucus thickness and production in situan explanation of some of the php codeNghiên cứu sự biến đổi một số cytokin ở bệnh nhân xơ cứng bì hệ thốngNghiên cứu sự hình thành lớp bảo vệ và khả năng chống ăn mòn của thép bền thời tiết trong điều kiện khí hậu nhiệt đới việt namMột số giải pháp nâng cao chất lượng streaming thích ứng video trên nền giao thức HTTPNghiên cứu vật liệu biến hóa (metamaterials) hấp thụ sóng điện tử ở vùng tần số THzGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitNGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWAN SLIDEPhối hợp giữa phòng văn hóa và thông tin với phòng giáo dục và đào tạo trong việc tuyên truyền, giáo dục, vận động xây dựng nông thôn mới huyện thanh thủy, tỉnh phú thọPhát triển du lịch bền vững trên cơ sở bảo vệ môi trường tự nhiên vịnh hạ longPhát hiện xâm nhập dựa trên thuật toán k meansNghiên cứu về mô hình thống kê học sâu và ứng dụng trong nhận dạng chữ viết tay hạn chếThơ nôm tứ tuyệt trào phúng hồ xuân hươngTăng trưởng tín dụng hộ sản xuất nông nghiệp tại Ngân hàng Nông nghiệp và Phát triển nông thôn Việt Nam chi nhánh tỉnh Bắc Giang (Luận văn thạc sĩ)Tranh tụng tại phiên tòa hình sự sơ thẩm theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn xét xử của các Tòa án quân sự Quân khu (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtBÀI HOÀN CHỈNH TỔNG QUAN VỀ MẠNG XÃ HỘIChiến lược marketing tại ngân hàng Agribank chi nhánh Sài Gòn từ 2013-2015HIỆU QUẢ CỦA MÔ HÌNH XỬ LÝ BÙN HOẠT TÍNH BẰNG KIỀM