نتایج جستجو برای: ramsar
تعداد نتایج: 682 فیلتر نتایج به سال:
Introduction: Annual effective radiation dose from all natural sources is approximately about 2.4 mSv and contribution of unnatural or man-made sources is 0.8 mSv. In some places of Ramsar, radiation dose due to radon exposure is about 3700 Bqm -3 while according to US EPA instruction radon levels should be 200 Bq m-3. Amazingly, there is not a meaningful result in the studies...
The Cuvette Centrale is the largest tropical peatland complex in world, covering approximately 145,000 km2 across Republic of Congo and Democratic Congo. It stores ca. 30.6 Pg C, equivalent three years global carbon dioxide emissions now first trans-national Ramsar site. Despite its size importance as a store, relatively little known about key aspects ecology history, including formation, scale...
Background: In Iran, architectures are often unaware of the risk of radon inhalation and how to reduce radon levels. Furthermore, radon considerations are not implemented in construction methods, construction materials and building utilization by regulatory authorities. Materials and Methods: In this study after reviewing the meteorological changes of Ramsar over the past 50 years (1955-2005), ...
Wetlands are among most threatened habitats of world due to many reasons including anthropogenic pressure. Chandertal wetland consists grassy meadows and a half moon shaped rock basin Lake (4270 m above mean sea level). It is designated as inernational Ramsar site also wildlife sanctuary. Survey on butterflies was carried out there by considering the importance fragility this cold desert ecosys...
36 I ublic awareness about exposure to natural sources of radiation has been growing in recent years at a rather accelerated pace. Exposure to high levels of radon indoors, for example, has drawn considerable attention, and a number of countries have already adopted regulatory measures to mitigate exposure to radon in existing houses and to establish radon limits for new buildings. Another area...
The increasing population in the developing countries has rendered wetlands vulnerable to land use changes. Remote sensing offers a rapid and efficient means of data acquisition of ecosystems in time and space. The present study was undertaken to identify changes in the Harike wetland, a Ramsar site in the state of Punjab, India; and identify causal factors, as well as vulnerable areas threaten...
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