effects of water pollution on environment wikipedia

... quantum of environmental and health risk associated with it The severity of the environmental degradation of Ennore creek could reflect upon the health and living conditions of the stakeholders of ... important reason for the deteriorating living conditions of the stakeholders In order to study the socio-economic impact of water pollution of the Ennore Creek on the socio-economic status of the stakeholders, ... appropriate descriptive variables Limitations The poor socio-economic conditions of the sample households are not only due to the water pollution and the poor environment of the households in the study

Ngày tải lên: 29/03/2014, 21:20

... NONPARAMETRIC MODELING OF THE EFFECTS OF AIR POLLUTION ON PUBLIC HEALTH PENG QIAO NATIONAL UNIVERSITY OF SINGAPORE 2005 NONPARAMETRIC MODELING OF THE EFFECTS OF AIR POLLUTION ON PUBLIC ... explanation of these conditions in order, which were given in Cheng and Tong (1993) Conditions (A.1)-(A.4) are self-explanatory Condition(A.5) is the introduction of a weight function ω, the purpose of ... very high concentration 1.2 Quantification of Health Effects As evidence of negative impacts of air pollution on public health has been accumulated, quantification of these

Ngày tải lên: 26/11/2015, 23:08

... http://www.biomedcentral.com/1471-2229/14/72 RESEARCH ARTICLE Open Access Rapid and long-term effects of water deficit on gas exchange and hydraulic conductance of silver birch trees grown under varying atmospheric humidity ... Background: Effects of water deficit on plant water status, gas exchange and hydraulic conductance were investigated in Betula pendula under artificially manipulated air humidity in Eastern Estonia ... dehydrating cut branches in open-air conditions; long-term water deficit was generated by seasonal drought Results: The rapid water deficit quantified by leaf (ΨL) and branch water potentials (ΨB) had a

Ngày tải lên: 27/05/2020, 01:31

... infection will depend on the fungal species and strain used as mycobiont and ii), that there may be a discrepancy between effects of mycorrhizae on stem elongation on the one hand and on diameter ... (1985) Leaf conductance in relation to rate of CO assimi2 lation I Influence of nitrogen nutrition, phosphorus nutrition, photon flux density and ambient partial pressure of CO during ontogeny Plant ... Original article The effects of ectomycorrhizal status on carbon dioxide assimilation capacity, water-use efficiency and response to transplanting in seedlings of Pseudotsuga menziesii (Mirb)

Ngày tải lên: 09/08/2014, 03:25

... Tai Tao Sign of Advisor Assoc Prof.PhD. Tran Ngoc Hai Sign of Student Pham Thanh Nhan EFFECTS OF LIGHT INTENSITY ON FORMATION OF BIOFLOCS, WATER QUALITY, GROWTH PERFORMANCE OF WHITE LEG SHRIMP ... partial fulfillment of the requirements for The degree of Bachelor of Aquaculture Science Can Tho, December 2014 The thesis Effects of light intensity on formation of bioflocs, water quality, growth ... 2007). There are a lot of studies about the effects of different stages, components of waste, factors affecting to Biofloc system and so on. Based on basis principal of Biofloc technology, difference

Ngày tải lên: 16/10/2015, 23:23

... and water quality, little information exists on the interaction of effects of water exchange and shrimp dietary vitamin and mineral requirements This study was conducted to investigate the effects ... International Journal of Recirculating Aquaculture Volume 13: 35-45 2016 Effects of water exchange and reducing dietary vitamin and mineral supplementation on survival and growth of Litopenaeus ... production have led to development of zero water exchange shrimp culture technology Generally present in zero water exchange systems are suspended particles which consist of a variety of microbes,

Ngày tải lên: 27/09/2019, 10:20

... use of WiBE The effect of the water emulsification for NOx emission reduction was more pronounced at the higher engine capacity The analysis of the NOx emission reduction due to the effects of water ... Dissociation of oxygen atom during ionization of water to form hydroxyl radicals could be another reason for NOx emission reduction According to Fig 9(b), the NOx emission, for the combustion of WiBE ... (b) burning duration and (c) dynamism of the fuel fraction burned and combustion phase for the RCCI combustion of WiBE/biogas 3.2 Effects of Water Emulsification on the Emission Characteristics

Ngày tải lên: 03/06/2020, 22:40

... 3rd month of culture, once a week on average volume of 1/3 the amount in the pond to ensure the water quality Aeration operates at night or on a cloudy day at the end of the second month of culture ... randomly in tanks of m3 The initial salinity of cultured water was 7‰ with biofloc Nonexperimental factors such as environmental conditions (temperature, salinity, DO,…) and food of each experiment ... appeared in the pond The determination of biofloc in the pond was based on the floc volume index (FVI), calculated from the floc volume after 30 minutes of sedimentation in an Imhoff cone [5], with

Ngày tải lên: 23/07/2020, 01:59

... al of Science, E arth Sciences 28 (2012) 160-172 Effects of Forest Degradation on Forest’s Soil Water Retention in Northern Vietnam Tran Quang Bao* Vietnam F o restry University, Xuan Mai, Chuong ... water stored m soil is in August, and the lowest one is in February Keywords: forest hydrology, soil water retention, soil moisture, forest degradation Introduction retention capacity Thus, effects ... conversions on hydrological roles o f forest have been attracted considerable attention from ửie public since the last centuries It has long been recognized that deforestation has important consequences

Ngày tải lên: 17/03/2021, 20:19

... Evaluation of current conditions and orientations of developing environmental technology in Mekong delta area A collection of reports from technological scientific and environmental workshop in Mekong ... results of environmental monitoring Tra Vinh province Tra Vinh 2013 93 43 Institute for Tropicalization and Environment, General report on the results of environmental monitoring of zone II – ... Management of water resources 58 Chapter VI ENVIRONMENTAL POLLUTION MITIGATION & TREATMENT MODELS AT RESIDENTIAL CLUSTERS IN FLOODED AREAS, MEKONG DELTA VI.1 Selection of pollution mitigation & treatment

Ngày tải lên: 13/03/2022, 16:38

... form the set of constraints of the linear optimization problem 2.4 Estimation of Production Function Parameters Estimation of the full set of parameters for the production function with inputs ... Lotufo, 2008), but decision makers often have little or no information about the effects of alternative policy actions on water use in agricultural or the knock-on effects on rural employment or ... linked hydro-economic model and uses it to examine the effects of water use regulations on the agriculture of the São Francisco River Basin, Brazil The hydrologic effects of weather on water availability

Ngày tải lên: 18/10/2022, 22:17

... tunnel study of near-field pollutant dispersion from rooftop emissions of two multiple building configurations The configurations mainly consisted of an emitting building in the presence of an upstream ... investigation of the effects of upstream buildings on near-field pollutant dispersion The effect of downstream buildings of different geometries on effluent dispersion from rooftop emissions was ... tunnel study of the effects of adjacent buildings on near-field pollutant dispersion from rooftop emissions in an urban environment B Hajraa*, T Stathopoulosa, A Bahloulb a Department of Building,

Ngày tải lên: 19/10/2022, 02:48

... While the economic development is commonly measured in terms of the income per capita, a multiple of indicators of environmental degradation such as the level of air or water pollution have been ... vegetation growth Conclusions The land use change under intensive human activities was characterized by the expansion of constructed oases, considerable contraction of oasis-desert transitional zone ... annual runoff volume was taken to approximate the annual water extraction from surface runoff for consumption in the middle Heihe River Basin The long-term average surface water consumption was

Ngày tải lên: 01/11/2022, 10:11

... https://doi.org/10.1186/s12889-022-13701-z Open Access RESEARCH The effects of seasonal variations on household water security and burden of diarrheal diseases among under 5 children in an urban community, Southwest ... and rainy seasons Household water security was assessed through the application of the all or none principle to indicators associated with household water security The intensity of water insecurity ... assessed the dynamics of seasonal variations in household water security and the association between household water security and diarrheal disease across dry and wet seasons in an urban settlement

Ngày tải lên: 29/11/2022, 00:13

... _ THE EFFECTS OF COOPERATIVE LEARNING ON THE CLASSROOM LEARNING ENVIRONMENT, ATTITUDE AND SELF-ESTEEM OF STUDENTS TRAN VAN DAT* ABSTRACT This experimental study investigated the effects of cooperative ... setting of Vietnamese higher education institutions Cooperative learning Cooperative learning has been the centre of worldwide attention because it has been shown to have strong effects on student ... attitudes and self-esteem of university students in VHEI It also reports students’ perceptions of the classroom learning environment The positive effects of cooperative learning on social, psychological,

Ngày tải lên: 05/01/2023, 22:23

... Visitors’ Stream-of-consciousness about Contact with Waterfowl and Reduction Way of Influence of this Contact on Waterside Environment Journal of Japan Society on Water Environment, 23 (9), 565–571 ... relation to the behavior of accumulation and sedimentation of contaminated matter on the pond bottom, how they are changed depending on the pond position, influences of precipitation and mud on water ... purification of Koya Pond - 226 - Journal of Water and Environment Technology, Vol 7, No 4, 2009 Water pollution has been exacerbated continually in Koya Pond; moreover, the loads from various pollution

Ngày tải lên: 05/09/2013, 09:38

... Modelling the effects of air pollution The effects of air pollution are typically assumed to be constant (represented by γ), or depend on the level of air pollution, the latter of which replaces wt ... conditional of α is non-standard because it is the product of a Gaussian prior and n Poisson observations As a result, simulation is carried out using a Metropolis-Hastings step, and two common ... counts are regressed against air pollution levels and a vector of covariates, the latter of which model long-term trends, seasonal variation and temporal correlation commonly present in the daily mortality

Ngày tải lên: 17/02/2014, 10:20

... center sponsored by the United States Army. iv The Effects of Equipment Age on Spare Part Costs: A Study of M1 Tanks For more information on RAND Arroyo Center, contact the Director of Operations ... 58 [...]... RAND Corporation, MR-1789 -A, 2004, p 27 (age- failure relationship) and p 48 (high-cost parts) 2 Congressional Budget Office, The Effects of Aging on the Costs of Operating and ... of the effects of equipment age on maintenance costs, including a discussion of the spare part budget process Chapter Three focuses on the potential effect of one

Ngày tải lên: 17/02/2014, 22:20

... Comparison of Battalion Failure Distributions and Poisson Distribution in 2nd Infantry Division 80 B.6. Comparison of Battalion Failure Distributions and Poisson Distribution in 3rd Infantry Division ... (Location 1, 180 days) 66 B.1. Illustration of Failure Data Overdispersion 77 B.2. Comparison of Battalion Failure Distributions and Poisson Distribution in 1st Cavalry Division 79 B.3. Comparison of ... Battalion Failure Distributions and Poisson Distribution in 4th Infantry Division 79 B.4. Comparison of Battalion Failure Distributions and Poisson Distribution in 1st Infantry and 1st Armor Divisions:

Ngày tải lên: 18/02/2014, 17:20

... external monetary costs of air pollution or the benefits of preventive actions. The output of the HIA process will be the number of events attributable to air pollution in the target population. Epidemiological ... D., BATCHAROVA L., PONKA A., WICHMANN E. Recommendations for the monitoring of short-term health effects of air pollution: lessons from the APHEA multi centre European study. International Journal of Hygiene ... standards, closer monitoring of air -pollution levels and decreasing levels of certain types of air pollutants. Many research studies have sought to quantify the effects of air pollution on health. In...

Ngày tải lên: 23/03/2014, 00:20