搜索结果: 1-15 共查到“trace metal”相关记录15条 . 查询时间(0.046 秒)
Bioactive trace Metal distributions and Biogeochemical controls in the Southern ocean
Metal distributions Biogeochemical controls
2015/7/15
Extensive sampling in many regions of the Southern Ocean has
demonstrated that surface water concentrations of dissolved Fe are low enough
to limit phytoplankton growth. In contrast, there is curr...
Evaluation of dust and trace metal estimates from the Community Multiscale Air Quality (CMAQ) model version 5.0
Evaluation of dust trace metal estimates
2014/12/12
The Community Multiscale Air Quality (CMAQ)
model is a state-of-the-science air quality model that simulates the emission, transformation, transport, and fate of the
many different air pollutant spe...
Trace metal cycling in the deep water of the South China Sea: The composition, sources, and fluxes of sinking particles
Trace metal cycling in the deep water the South China Sea composition sources fluxes of sinking particles
2014/4/8
Moored sediment traps were deployed for 1 yr at depths of 120, 600, and 3500 m in the water column to investigate the trace metal (M) (Al, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn) composition, sources, ...
Trace Metal Contents in Some Brands of Canned Tomato Paste in Nigerian Market
Trace Metal Contents Nigerian Market
2016/6/1
Concentrations of metals (copper, zinc, lead and iron) were examined in some popular brands of canned tomato paste in Nigerian markets with a view of providing information on the risk associated with ...
The influence of river plume dynamics on trace metal accumulation in calanoid copepods
iver plume dynamics calanoid copepods
2014/4/17
The concentrations of Ag, Cd, Cu, Hg(II), monomethylmercury (MeHg), Pb, and Zn were measured and
modeled in calanoid copepods collected from the Hudson River plume in April 2005 and May 2006. Copepod...
Trace metal cycling in the surface water of the South China Sea: Vertical fluxes, composition, and sources
Trace metal cycling the surface water the South China Sea: Vertical fluxes composition sources
2014/4/16
We deployed floating traps in the surface waters of the South China Sea on four occasions at depths of 30 m,100 m, and 160 m from 2006 to 2007 to quantify vertical metal fluxes in the surface water an...
TRACE METAL ACCUMULATION IN VEGETABLES GROWN IN INDUSTRIAL AND SEMI-URBAN AREAS – A CASE STUDY
trace metals vegetables air accumulation factor concentration factor
2010/3/26
The main sources of trace metals to plants are the air or soil media from which trace elements
are taken up by the root or foliage. The air, soil and vegetable samples were collected from Industrial,...
Trace Metal Mercury Levels in Residential Homes in Kuwait
Trace metal indoor particulate matter mercury concentration mercury species
2008/12/19
Kuwait is an oil rich state on the northeastern corner of Arabian Peninsula and has faced the unprecedented man made environmental disaster in early 1991 of igniting over 600 oil wells those continual...
TRACE METAL CONCENTRATIONS IN MARINE ZOOPLANKTON FROM THE WESTERN BAY OF BENGAL
Bay of Bengal zooplankton trace metals bioaccumulation
2010/3/25
Trace metal contents in zooplankton samples were estimated as a part of Marine Research-
Living Resource Programme (MRLR) programme at 24 stations to establish the importance of these
metals in the ...
The trace-metal composition of size-fractionated plankton in the South China Sea: Biotic versus abiotic sources
size-fractionated plankton South China Sea
2014/4/22
We report the elemental composition (P, Si, Al, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn) in the size-fractionated
plankton and suspended particulate matter (SPM) in the surface waters of the South China Se...
Effects of dust deposition and river discharges on trace metal composition of Trichodesmium spp. in the tropical and subtropical North Atlantic Ocean
dust deposition river discharges trace metal composition Trichodesmium spp. tropical subtropical North Atlantic Ocean
2014/5/4
We present the elemental composition (Al, Cd, Co, Cu, Fe, Mn, Mo, Ni, V, Zn, and P) of field-collected Trichodesmium populations. To distinguish the effects of river discharges (Amazon and Niger River...
VALIDATING SPECIES DIVERSITY OF BENTHIC ORGANISMS TO TRACE METAL POLLUTION IN KUWAIT BAY,OFF THE ARABIAN GULF
benthic organisms trace metals species diversity
2010/3/24
Benthic organisms diversity were observed in the sequence of Annelida > Mollusca >Crustacea > “Diversa” group. Levels of trace metals in benthic organisms were in the range 0.12–96.86 μg/g during wint...
Phosphorus and trace metal limitation of algae and bacteria in Lake Superior
Phosphorus and trace metal algae and bacteria Lake Superior
2014/5/14
We performed a set of nutrient-enrichment bioassay experiments using metal-clean protocols, testing for macronutrient and micronutrient limitation of algae and bacteria in western Lake Superior. Our a...
Trace metal assimilation and release budget in Daphnia magna
Trace metal assimilation release budget Daphnia magna
2014/5/26
The assimilation efficiency (AE), efflux rate, and release budget of Cd, Cr(III), Se(IV), and Zn by a freshwater zooplankton Daphnia magna were measured under different food concentrations. The AEs of...
Ideal Behavior in Na+-Trace Metal Cation Exchange on Camp Berteau Montmorillonite
Cation Exchange Heterovalent Exchange Montmorillonite Trace Metals
2012/2/9
The conditions under which an exchanger phase will behave as an ideal mixture are established from thermodynamic principles. It is shown that, if a stoichiometric cation-exchange reaction is reversibl...