خيارات البحث
النتائج 1 - 10 من 10
Incorporation of wind roses in a statistical long-range pollution transport model.
1987
Shipley K.B. | McBean E.A. | Farquhar G.J. | Byrne J.M.
Fate of MV Wakashio oil spill off Mauritius coast through modelling and remote sensing observations
2021
Gurumoorthi, K. | Suneel, V. | Trinadha Rao, V. | Thomas, Antony P. | Alex, M.J.
This study aims at assessing the fate of MV Wakashio oil spill, and the driving forces responsible for possible environmental consequences of polluted coastal region. GNOME simulations were performed, considering various meteo-oceanographic forcings such as (i) winds and currents, (ii) only winds, and (iii) only winds with different diffusion coefficients, and validated with the satellite images. The results revealed that the simulations performed with ‘only winds’ reasonably match with the satellite observations, indicating that winds are the primary driving forces. The conducive stokes drift is an added contribution to the predominant northwestward drift of the spill. The oil budget analysis suggests that beaching and evaporation together accounted for a significant portion of the spilled oil (1000 tons), in which ~60% of the oil was accounted only for beaching. Our results depict that the diffusion coefficient of 100,000 cm²/s and 3% windages are optimal for oil-spill simulations off the southeastern Mauritius coast.
اظهر المزيد [+] اقل [-]Temporal patterns in the abundance, type and composition of microplastics on the coast of the Río de la Plata estuary
2021
Pazos, Rocío S. | Amalvy, Javier | Cochero, Joaquín | Pecile, Agostina | Gómez, Nora
The objective was to establish possible temporal patterns in the microplastics (MPs) abundance in the water and in the intertidal sediment in an urbanized location of the Río de la Plata estuary (Argentina), in relation to environmental factors. The site was sampled monthly for a year (February 2019–January 2020). The presence of MPs was recorded, being more abundant in February in the water (110 MPs m⁻³) and in April in the sediment (613 MPs m⁻²). The types of MPs found were fibers, fragments, pellets, film and foam; while the polymers identified were polyethylene (PE) and polypropylene (PP). Regarding the environmental variables, the predominance of wind from the NE direction was related to a greater accumulation of MPs in the sediment, while wind from the NO direction was associated with a lower abundance of MPs in the water. Also, MPs abundance was negatively related to the larger sizes of sediment particles.
اظهر المزيد [+] اقل [-]Wet deposition of ammonium and atmospheric distribution of ammonia and particulate ammonium in Japan
1998
Murano, K. | Mukai, H. | Hatakeyama, S. | Oishi, O. | Utsunomiya, A. | Shimohara, T. (National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-0053 (Japan))
PLATIN (PLant-ATmosphere INteraction) II: co-occurrence of high ambient ozone concentrations and factors limiting plant absorbed dose
1997
Grunhage, L. | Jager, H.J. | Haenel, H.D. | Hanewald, K. | Krupa, S. (Institute for Plant Ecology, University of Giessen, Heinrich-Buff-Ring 38, D-35392 Giessen, Germany)
Wind Environment in Green Building Design
2015
Yang Li | Qian Feng
With the increasing urban building density, wind environment problems around the buildings become more and more serious. Wind environment not only affects human living comfort, but also closely relates to their security and health. So, it is important to study the wind environment to improve it in the building planning and design and it is also an important part of making a reasonable evaluation of wind environment in green building design. In the current study, wind tunnel test and numerical simulation of computer technology are considered as an effective means of simulation and validation of environment.
اظهر المزيد [+] اقل [-]Effects of ozone on plants in relation to other environmental conditions
1989
Mortensen, L.M. (Norges Landbrukshoegskole, Aas (Norway). Inst. for Hagebruk)
Modeling study of SO(x) and NO(x) transport during the January 1985 smog episode
1990
Leeuw, F.A.A.M. de (Rijksinstituut voor Volksgezondheid en Milieuhygiene, Bilthoven (Netherlands)) | Rheineck Leyssius, H.J. van
Long-range transport and deposition of pollutants in the Fichtelgebirge
1989
Ulrich, W.
Vertical concentration profile of photochemical oxidant along a mountain slope
1983
Sasaki, K. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Kurita, H. | Uchida, H.