Results 41 to 50 of about 525 (121)

Assessment of the environmental toxicity and carcinogenicity of tungsten-based shot. [PDF]

open access: yes, 2009
The toxicity of elemental tungsten released from discharged shot was assessed against previous studies that established a 1% toxic threshold for soil organisms.
Harrison, Paul T. C.   +2 more
core   +1 more source

Emprego da fluorescência de raios X por dispersão de energia para o mapeamento de troncos de árvores em Campinas, São Paulo Energy dispersive X-ray fluorescence applied to mapping of tree stems in Campinas, São Paulo

open access: yesQuímica Nova, 2009
Dendrochemistry is based on the determination of elements retained in tree rings, which can be useful to characterize environmental occurrences. This work shows elemental mappings obtained by EDXRF of the cross section of a tree stem.
José Augusto da Col   +1 more
doaj   +1 more source

Contrasting nutritional acclimation of sugar maple (Acer saccharum Marsh.) and red maple (Acer rubrum L.) to increasing conifers and soil acidity as demonstrated by foliar nutrient balances [PDF]

open access: yes, 2016
Sugar maple (Acer saccharum Marshall, SM) is believed to be more sensitive to acidic and nutrient-poor soils associated with conifer-dominated stands than red maple (Acer rubrum L., RM).
Bélanger, Nicolas   +4 more
core   +1 more source

Mercury Accumulation in Tree Rings: Observed Trends in Quantity and Isotopic Composition in Shenandoah National Park, Virginia [PDF]

open access: yes, 2020
Recent studies have shown that mercury (Hg) concentrations in tree rings have the potential to archive historical Hg exposure from local, regional, and global sources.
Camper, T. D.   +5 more
core   +1 more source

If Trees Could Talk - Dendrochemistry, a Promising Method for Understanding Pollution History [PDF]

open access: yes, 2023
Heavy metal pollution presents a significant environmental challenge in the Anthropocene era, and understanding pollution history is crucial to address historical pollution and implementing effective mitigation measures.
Uusitalo, Jonatan
core  

Using tree rings to assess the air quality in Klosters, Switzerland [PDF]

open access: yes, 2021
Tree rings are widely recognised as passive environmental archives able to record the atmospheric composition and reflect the signal of the major pollutants with yearly resolution.
Bernasconi, Davide
core   +1 more source

Ficus insipida tree rings as biomonitors for gaseous elemental mercury in the artisanal gold mining-impacted Peruvian Amazon

open access: yesFrontiers in Environmental Science
IntroductionThe primary source of anthropogenic atmospheric mercury (Hg) emissions globally is artisanal and small-scale gold mining (ASGM). Estimates of Hg emissions from ASGM are poorly constrained due to a lack of monitoring data and the informal ...
Jacqueline Gerson   +10 more
doaj   +1 more source

Characterization of Chlorinated Aliphatic Hydrocarbons and Environmental Variables in a Shallow Groundwater in Shanghai Using Kriging Interpolation and Multifactorial Analysis [PDF]

open access: yes, 2015
CAHs, as a cleaning solvent, widely contaminated shallow groundwater with the development of manufacturing in China's Yangtze River Delta. This study focused on the distribution of CAHs, and correlations between CAHs and environmental variables in a ...
Gu, JD   +5 more
core   +4 more sources

Academic Science and New Industrialization (Example of the Komi Republic) [PDF]

open access: yes, 2016
Today, the new guidelines of strategic planning for the development of Russia and its regions are increasingly determined by science and technological progress.
Lazhentsev, V. N.
core   +1 more source

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