排序方式: 共有3条查询结果,搜索用时 15 毫秒
1
1.
Jarvin Mariyadhas Kumar Sundararajan Ashok Rosaline Daniel Rani Foletto Edson Luiz Dotto Guilherme Luiz Inbanathan Savariroyan Stephen Rajkumar 《Environmental science and pollution research international》2022,29(38):57330-57344
Environmental Science and Pollution Research - In this work, Ag-doped ZnO nanoparticles (NPs) were synthesized by a simple green method using a toxic agent-free route for photocatalytic purposes,... 相似文献
2.
Darcy L. Gray Rosaline Canessa Rick Rollins C. Peter Keller Philip Dearden 《Environmental management》2010,46(2):167-180
Marine protected areas (MPAs) and zoning plans require an understanding of stakeholders if they are to be successful at achieving
social and biological objectives. This study examines recreational boaters in a proposed MPA in British Columbia, Canada,
using the recreation opportunity spectrum (ROS) and models of recreation conflict as a basis for investigation. Boaters (n = 543) visiting the region during the summer completed face-to-face surveys. Results show variability in boater setting preferences,
supporting an ROS-based approach to MPA planning and zoning. While boaters as a whole placed the greatest importance on natural
settings, sailboat operators expressed stronger preferences for natural and quiet settings relative to motorboats, and motorboat
operators expressed stronger preferences for settings characterized by built facilities and extractive activities relative
to sailboats. Several marine activities emerged as sources of perceived conflict for boaters, including personal watercraft,
commercial whale watching vessels, and shellfish aquaculture. Our analysis indicates that while some of these may be addressed
through zoning, others are better addressed through education and communication. Recommendations for both MPA management and
future research are made. 相似文献
3.
Ajay Kumar Sumit Sharma Rohit Mehra Priya Kanwar Rosaline Mishra Inderpreet Kaur 《Environmental geochemistry and health》2018,40(2):815-831
Radon concentration was measured in water samples of 41 different locations from Udhampur district of Jammu & Kashmir, India, by using RAD7 and Smart RnDuo monitor. The variation of radon concentration in water ranged from 1.44 ± 0.31 to 63.64 ± 2.88 Bq L?1, with a mean value of 28.73 Bq L?1 using RAD7 and 0.64 ± 0.28 to 52.65 ± 2.50 Bq L?1, with a mean value of 20.30 Bq L?1 using Smart RnDuo monitor, respectively. About 17.07% of the studied water samples recorded to display elevated radon concentration above the reference range suggested by United Nation Scientific Committee on the Effects of Atomic Radiations (UNSCEAR). The mean annual effective dose of these samples was determined, and 78.95% samples were found to be within the safe limits set by World Health Organisation (WHO) and European Council (EU). The study revealed good agreement between the values obtained with two methods. Heavy metals (Zn, Cd, Fe, Cu, Ni, As, Hg, Co, Pb and Cr) were determined in water samples by microwave plasma atomic emission spectrometer, and their correlation with radon content was also analysed. 相似文献
1