نتایج جستجو برای: water pollution control

تعداد نتایج: 1870981  

Journal: :Environmental Health Perspectives 2002
R Mendelsohn

Environmental economics has made numerous contributions to both the theory and the applied problems surrounding pollution control. Given that the primary benefits of controlling most pollutants are health benefits, there is a close link between human health and environmental economics. One of the most important contributions that economics has made to the problem of pollution control is to clar...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده علوم کشاورزی 1386

چکیده ندارد.

Journal: :Organic & Medicinal Chemistry International Journal 2018

Journal: :global journal of environmental science and management 2015
r.n. lohe b. tyagi v. singh p. tyagi d.r. khanna

although water and land pollution are very dangerous, air pollution has its own peculiarities due to its transboundary dispersion of pollutants over the entire world. in any well planned urban set up, industrial pollution takes a back seat and vehicular emissions take precedence as the major cause of urban air pollution. in the present study, air pollution tolerance index was calculated for var...

ژورنال: علوم آب و خاک 2015
افیونی, مجید , حاج‌عباسی, محمدعلی , مصدقی , محمدرضا, کرمانپور, مهدیه,

Petroleum pollution is an important environmental issue in most of the countries especially those have an oil industry. This study was conducted to investigate the effect of petroleum pollution on soil water repellency and its relation to soil structural stability in Bakhtiardasht area, Isfahan. Polluted and adjacent non-polluted locations were selected to be representative in the green space a...

2007
JUAN PABLO MONTERO Joseph M. Sussman Juan Pablo Montero Denny Ellerman

Market-based instruments for pollution control have received large attention during the last years due to increasing costs of pollution abatement and the need for more flexibility among emitting sources to comply with environmental regulations. The evidence, however, has shown some implementation problems with such instruments. A classic example of such problems is the Fox River permit program,...

2014
K. Sakadevan L. Heng L. Nguyen

This paper reports the preliminary results obtained from an FAO/IAEA coordinated research project (CRP) involving eight countries. Results obtained are discussed with respect to sources and sinks of water and nutrients in water conservation zones that help farmers to use water when it is required. Three types of water conservation zones, namely farm ponds, wetlands and riparian buffer zones wer...

2002
Rodney B.W. Smith Theodore D. Tomasi

Assuming asymmetric information over farmer profits and zero transaction costs, prior literature has suggested that when regulating nonpoint source water pollution, a tax on management practices (inputs) can implement full-information allocations and is superior to a tax on estimated runoff. Using mechanism design theory under asymmetric information, this paper shows that under the same assumpt...

2010
Medhat Ibrahim Zarrag Al-Fifi

The aquatic plant water hyacinth is a powerful tool for mediating pollution from aquatic environment. PM3 semiempirical method and FTIR spectroscopy was used to predicate the mechanism of pollution control. First the plant is subjected to acetic acid 0.1 M for 19 hours. FTIR proves that the plant is cellulose like material. Furthermore, the acetylated plant is looks like cellulose acetate. The ...

2014
Jiabo Chen Jun Lu

Understanding the primary effects of anthropogenic activities and natural factors on river water quality is important in the study and efficient management of water resources. In this study, analysis of Variance (ANOVA), Principal component analysis (PCA), Pearson correlations, Multiple regression analysis (MRA) and Redundancy analysis (RDA) were applied as an integrated approach in a GIS envir...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید