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31.
Ram Ranjan 《Mitigation and Adaptation Strategies for Global Change》2008,13(4):401-418
This paper explores the role of risk perceptions in influencing public policy related to global warming. It solves for the
optimal paths for emissions, abatement and investment in pollution-eliminating research by incorporating perceived risks into
public decision making. It also compares the impact of differential risk perceptions on international collaboration on carbon
abatement. Key findings are that the perception of risks related to environmental damages and technological breakthroughs
plays an important role in determining the level of mitigation efforts. A high level of perceived risk of environmental damages
discourages investment in pollution-eliminating research as there are few benefits from eliminating pollution after damages
are realized. Other options that allow for sequestering carbon from the atmosphere may still remain viable. Another key finding
is that when it comes to effort sharing between nations, differential mitigation efforts are primarily caused due to the differences
in abatement technology, benefits from emissions and research capabilities. However, such differences could be accentuated
or mitigated depending upon the differences in risk perception of developed and developing countries. 相似文献
32.
Ranjan Jyoti Joshi Vayam Mandal Tamale Mandal Dalia Dasgupta 《Environmental science and pollution research international》2021,28(22):27954-27965
Environmental Science and Pollution Research - Chlorophenols are not only noticed in an effluvium of industries but also can emerge from the water treatment plants for domestic supply which poses a... 相似文献
33.
Nandita Dasgupta Shivendu Ranjan Chidambaram Ramalingam 《Environmental Chemistry Letters》2017,15(4):591-605
Due to their small size and unique physico-chemical characteristics, nanomaterials have gained importance in the agri-food sector, notably in preservation and packaging. Future applications will focus on shelf life, food quality, safety, fortification and biosensors for contaminated or spoiled food, irrigating water and drinking water. Different types and shapes of nanomaterials are being used depending upon the needs and nature of the work in agriculture and water quality management. Here we review the application of nanotechnology in agriculture. The major points discussed are: (1) Nanomaterials for agriculture and water quality management. (2) Research interests such as nanoscale carriers, fabricated xylem vessels, nanolignocellulosic materials, clay nanotubes, photocatalysis, bioremediation of resistant pesticides, disinfectants, agricultural wastewater treatment, nanobarcode technology, quantum dots for staining bacteria and nanobiosensors. (3) Nanotechnological applications for agriculture, which includes nanolignodynamic metallic particles, photocatalysis, desalination, removal of heavy metals and wireless nanosensors. 相似文献
34.
So Kazama Toshiki Aizawa Toru Watanabe Priyantha Ranjan Luminda Gunawardhana Ayako Amano 《Sustainability Science》2012,7(1):45-54
Flooding and inundation are annual events that occur during the rainy season in Cambodia, and inundation has a strong relationship
with human health. This study simulated the coliform bacteria distribution using a hydraulic model and estimated the impact
of inundation on public health using a dose–response model. The model parameters were calibrated using field survey data from
Cambodia and obtained good agreement with the coliform group count distribution. The results suggest that the impact of inundation
on human health is most noticeable in residential areas. The annual average risk of infection during medium-sized flood events
is 0.21. The risk due to groundwater use ranges from 0.12 to 0.17 in inundation areas and reaches as high as 0.23 outside
the inundation areas. The risk attributed to groundwater use is therefore higher than that for surface water use (0.02–0.06),
except in densely populated areas at the city center. There is a high risk for infection with waterborne disease in residential
areas, and the annual average risk during small flood events is 0.94. An assessment of possible countermeasures to reduce
the risk shows that the control of inundation may bring more risk to public health in Cambodia. Shallower inundation water
(<0.3 m) leads to a higher risk of infection, but if the depth is greater than 2 m, the risk is low in residential areas.
The simulated results explain the spatial distributions of infection risk,, which are vitally important for determining the
highest priority places with relatively high risk and will be helpful for decision makers when considering the implementation
of countermeasures. 相似文献
35.
Srivastav Arun Lal Dhyani Rajni Ranjan Manish Madhav Sughosh Sillanpää Mika 《Environmental science and pollution research international》2021,28(31):41576-41595
Environmental Science and Pollution Research - Warming of the earth is considered as the major adverse effect of climate change along with other abnormalities such as non-availability of water... 相似文献
36.
Ranjan S. Muttiah Raghavan Srinivasan Peter M. Allen 《Journal of the American Water Resources Association》1997,33(3):625-630
ABSTRACT: The cascade correlation neural network was used to predict the two-year peak discharge (Q2) for major regional river basins of the continental United States (US). Watersheds ranged in size by four orders of magnitude. Results of the neural network predictions ranged from correlations of 0.73 for 104 test data in the Souris-Red Rainy river basin to 0.95 for 141 test data in California. These results are improvements over previous multilinear regressions involving more variables that showed correlations ranging from 0.26 to 0.94. Results are presented for neural networks trained and tested on drainage area, average annual precipitation, and mean basin elevation. A neural network trained on regional scale data in the Texas Gulf was comparable to previous estimates of Q2 by regression. Our research shows Q2 was difficult to predict for the Souris-Red Rainy, Missouri, and Rio Grande river basins compared to the rest of the US, and acceptable predictions could be made using only mean basin elevation and drainage areas of watersheds. 相似文献
37.
Ram Ranjan 《Mitigation and Adaptation Strategies for Global Change》2014,19(4):479-497
The threat of release of methane sequestered in the circumpolar Arctic regions of the world creates the possibility of triggering additional feedback effects from the terrestrial and the deep ocean systems which could potentially add large amounts of carbon (C) into the atmosphere. This paper analyses the implications for C mitigation policy under the threats of a substantial permafrost methane release. Several insights emerge from the analysis. First, the presence of non-linear feedbacks creates a bifurcation zone in the C emissions-stock space, on one side of which large accumulations of atmospheric C materialize leading to significant damages. Second, the bifurcation line does not have a steep slope, implying that it would be possible to avoid falling on the wrong side of this zone even if the current atmospheric stock of C were higher than what they are today. Third, when the release of permafrost C is uncertain, there is benefit in reducing anthropogenic C more than what would be optimal under a certain release of the same. Fourth, higher abatement cost scenarios do not necessarily imply significantly reduced abatement efforts. On the contrary, abatement efforts, which are only reduced marginally under this scenario, ensure that long run carbon path is stabilized. This is done in order to avoid incurring substantial costs of abatement in the future when non-linear feedback effects kick in. 相似文献
38.
Victor Felix Swamidoss Kugarajah Vaidhegi Bangaru Mohan Ranjan Shivendu Dharmalingam Sangeetha 《Environmental science and pollution research international》2021,28(28):37520-37533
Environmental Science and Pollution Research - Polyvinylidene fluoride (PVDF) blended with varying concentrations of titanium nanotubes (TNT) was electrospun to result in a nanocomposite filter... 相似文献
39.
Ranjan Shivendu Dasgupta Nandita Singh Satnam Gandhi Mansi 《Environmental Chemistry Letters》2019,17(2):929-944
Environmental Chemistry Letters - Food nanotechnology has been rapidly growing in last decade due to the unique properties of nanomaterials. Nonetheless, the presence of nanomaterials in food... 相似文献
40.