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111.
Neupane Ramesh K C Anup Aryal Manoj Rijal Kedar 《Environment, Development and Sustainability》2021,23(11):15897-15920
Environment, Development and Sustainability - This study was conducted with an aim to assess the status of ecotourism in terms of tourism demand, tourist characteristics, and strength,... 相似文献
112.
Stuckey JW Neaman A Ravella R Komarneni S Martínez CE 《Environmental pollution (Barking, Essex : 1987)》2009,157(1):12-16
This is the first test of a highly charged swelling mica's (Na-2-mica) ability to reduce the plant-absorbed Cu in Cu-contaminated soils from Chile. Perennial ryegrass (Lolium perenne L.) was grown in two acid soils (Sector 2: pH 4.2, total Cu = 172 mg Cu kg−1 and Sector 3: pH 4.2, total Cu = 112 mg Cu kg−1) amended with 0.5% and 1% (w/w) mica, and 1% (w/w) montmorillonite. At 10 weeks of growth, both mica treatments decreased the shoot Cu of ryegrass grown in Sector 2 producing shoot Cu concentrations above 21-22 mg Cu kg−1 (the phytotoxicity threshold for that species), yet the mica treatments did not reduce shoot Cu concentrations when grown in Sector 3, which were at a typical level. The mica treatments improved shoot growth in Sector 3 by reducing free and extractable Cu to low enough levels where other nutrients could compete for plant absorption and translocation. In addition, the mica treatments improved root growth in both soils, and the 1% mica treatment reduced root Cu in both soils. This swelling mica warrants further testing of its ability to assist re-vegetation and reduce Cu bioavailability in Cu-contaminated surface soils. 相似文献
113.
Choi Yeon Seok Choi Sang Kyu Kim Seock Joon Han So Young Jung Du Su Yoon Tae Han Soysa Ramesh 《Journal of Material Cycles and Waste Management》2018,20(1):369-374
Journal of Material Cycles and Waste Management - An environment-friendly treatment of organic waste like swine manure and food waste is considered to be big challenge, because the residue of... 相似文献
114.
115.
Reddy Yudhistir Ganguly Dipnarayan Singh Gurmeet Prasad Mamidala Harikrishna Arumughan Paneer Selvam Banerjee Kakolee Kathirvel Arumugam Ramachandran Purvaja Ramachandran Ramesh 《Environmental science and pollution research international》2021,28(31):42070-42070
Environmental Science and Pollution Research - A Correction to this paper has been published: https://doi.org/10.1007/s11356-021-14155-3 相似文献
116.
Pesticide residues in air from coastal environment, south India. 总被引:4,自引:0,他引:4
Chlorinated pollutants are transported through atmosphere. India is one of the point source countries for these pollutants [1]. In this study the concentration of DDT and HCH were evaluated in air from a tropical coastal environmental (at Parangipettai--southeast coast of India). DDT and HCH ranged in concentrations from 0.16 to 5.93 ng m-3 and 1.45 to 35.6 ng m-3 respectively. The ban on DDT in agriculture is reflected from the low residue levels recorded, predominantly by metabolites other than the parent compounds. 相似文献
117.
The clearinghouse concept: a model for geospatial data centralization and dissemination in a disaster 总被引:1,自引:0,他引:1
The disaster clearinghouse concept originates with the earthquake community as an effort to coordinate research and data collection activities. Though prior earthquake clearinghouses are small in comparison to what was needed in response to Hurricane Katrina, these seminal structures are germane to the establishment of our current model. On 3 September 2005, five days after Katrina wrought cataclysmic destruction along the Gulf Coast, FEMA and Louisiana State University personnel met to establish the LSU GIS Clearinghouse Cooperative (LGCC), a resource for centralization and dissemination of geospatial information related to Hurricane Katrina. Since its inception, the LGCC has developed into a working model for organization, dissemination, archiving and research regarding geospatial information in a disaster. This article outlines the formation of the LGCC, issues of data organization, and methods of data dissemination and archiving with an eye towards implementing the clearinghouse model as a standard resource for addressing geospatial data needs in disaster research and management. 相似文献
118.
Grover H. Prowell Michael R. McGown Ramesh Viswanathan James L. McElroy Marc L. Pitchford 《Journal of the Air & Waste Management Association (1995)》2013,63(6):847-851
Two recent power plant plume studies by mobile, ground-based and airborne lidar have recorded cross-section images of plumes with sharply-defined layered and connected bands of aerosol in the vertical. Of the external parameters considered, wind direction and speed changes in the vertical were found to be associated most with these plume types. Statistical analyses indicate that both direction and speed shear are highly correlated with the layered plumes. 相似文献
119.
B. Shathika Sulthana Begum R. Gandhimathi S. T. Ramesh P. V. Nidheesh 《Journal of Material Cycles and Waste Management》2013,15(4):564-570
In the present work, the feasibility of using sludge generated in wastewater treatment plants of textile industry as a partial replacement for clay in the conventional brick manufacturing process is examined. Physico-chemical properties of the sludge and clay were studied. The characteristics of bricks with replacement of sludge (0–50 %) with an increment of 3 % were determined. All the brick samples satisfied the requirements of Indian Standards norms in terms of weight loss on ignition. The bricks with sludge up to 15 % satisfied the prescribed norms for compressive strength and water absorption. Results also showed that the brick weight loss on ignition was mainly attributed to the organic matter content in the sludge being burnt off during the firing process. The characteristics of bricks such as efflorescence, density and weight loss on ignition for bricks with replacement of clayey soil with textile sludge up to 15 % also satisfied the requirements of the Indian Standard. Thus, textile sludge up to 15 % can be effectively added to make brick material. 相似文献
120.
Barman SC Singh R Negi MP Bhargava SK 《Environmental monitoring and assessment》2008,137(1-3):495-504
The present study deals with the effect of fireworks on ambient air quality during Diwali Festival in Lucknow City. In this
study, PM10, SO2, NO
x
and 10 trace metals associated with PM10 were estimated at four representative locations, during day and night times for Pre Diwali (day before Diwali) and Diwali
day. On Diwali day 24 h average concentration of PM10, SO2, and NO
x
was found to be 753.3, 139.1, and 107.3 μg m−3, respectively, and these concentrations were found to be higher at 2.49 and 5.67 times for PM10, 1.95 and 6.59 times for SO2 and 1.79 and 2.69 for NO
x
, when compared with the respective concentration of Pre Diwali and normal day, respectively. On Diwali day, 24 h values for
PM10, SO2, and NO
x
were found to be higher than prescribed limit of National Ambient Air Quality Standard (NAAQS), and exceptionally high (7.53
times) for PM10. On Diwali night (12 h) mean level of PM10, SO2 and NO
x
was 1,206.2, 205.4 and 149.0 μg m−3, respectively, which was 4.02, 2.82 and 2.27 times higher than their respective daytime concentrations and showed strong
correlations (p < 0.01) with each other. The 24 h mean concentration of metals associated with PM10 was found to be in the order of Ca (3,169.44) > Fe (747.23) > Zn (542.62) > Cu (454.03), > Pb (307.54) > Mn (83.90) > Co
(78.69) > Cr (42.10) > Ni (41.47) > Cd (34.69) in ng m−3 and all these values were found to be higher than the Pre Diwali (except Fe) and normal day. The metal concentrations on
Diwali day were found to be significantly different than normal day (except Fe & Cu). The concentrations of Co, Ni, Cr and
Cd on Diwali night were found to be significantly higher than daytime concentrations for Pre Diwali (control). The inter correlation
of metals between Ca with Pb, Zn with Ni and Cr, Cu with Co, Co with Mn, Ni with Cd, Mn with Cd, Ni with Cd and Cr, and Cr
with Cd showed significant relation either at p < 0.05 or P < 0.01 levels, which indicated that their sources were the same. The metals Cu, Co, Ni, Cr and Cd showed significant (p < 0.01) association with PM10. These results indicate that fireworks during Diwali festival affected the ambient air quality adversely due to emission
and accumulation of PM10, SO2, NO
x
and trace metals.
ITRC Communication Number 2538 相似文献