نتایج جستجو برای: anthropogenic factor

تعداد نتایج: 867506  

Journal: :iranian journal of environmental sciences 0
clement ogunkunle environmental biology unit, department of plant biology, university of ilorin, nigeria ite aniefiok department of chemistry, akwa ibom state university, p.m.b. 1167, uyo, akwa ibom state, nigeria sunday adeniyi department of geography, osun state university, osogbo, nigeria elizabeth akintola environmental biology unit, department of plant biology, university of ilorin, nigeria uche okere school of forensic and applied science, university of central lancashire, pr1 2he, united kingdom

urban horticulture is of growing importance in developing and developed countries around the world; however, contamination of urban horticultural products can exceed the precautionary values, posing significant human health risks due to dietary exposure to high levels of the pollutants. in this study, samples of rhizosphere soil and corresponding vegetables have been collected from an urban gar...

2005
Hidetoshi Tamura Koichiro Ishii Hitoshi Yokoyama Yukari Akiyama

The intensity of urban heat island is known to be stronger as city size (for example population of city) (Oke, 1973). In Tokyo 23 wards (hereinafter referred to as "Tokyo") with more than eight million people, urban heat island phenomenon is actualized and feared as a factor of increase in heatstroke patients and raising cooling energy consumption in summer. Therefore, Tokyo Metropolitan Govern...

Journal: :Remote Sensing 2017
Rajesh Janardanan Shamil Maksyutov Akihiko Ito Yukio Yoshida Tsuneo Matsunaga

Methane is an important greenhouse gas due to its high warming potential. While quantifying anthropogenic methane emissions is important for evaluation measures applied for climate change mitigation, large emission uncertainties still exist for many source categories. To evaluate anthropogenic methane emission inventory in various regions over the globe, we extract emission signatures from colu...

2015
Abdullah Mahmud-Al-Rafat Andrew W. Taylor-Robinson

Hantaviruses are primarily rodent-borne pathogens which have received considerable attention recently due to their high mortality rates in humans. In order to find the causes of rapid transmission and emergence of hantavirus-associated diseases anthropogenic changes are a priority. These include deforestation, urbanization, noise pollution, light pollution and electromagnetic fields, all of whi...

Feridon Ghadimi Mohammad Ghomi Reza Azimi

The present study investigated NO3- and Br- contamination in groundwater of Arak aquifer, Markazi province, Iran. Correlation and factor analyzes were used to detecti nterrelations and sources of NO3- and Br- ion concentration and other physicochemical variables. No correlation was observed between NO3- and otherscontents, but a positive correlation was identified between Br-and other majorvari...

2017
Guangming Zhao Siyuan Ye Hongming Yuan Xigui Ding Jin Wang

Grain size and concentrations of heavy metals (arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), lead (Pb), and zinc (Zn)) of 148 surface sediments and activities of 210Pb and heavy metal concetrantions of one sediment core from the Pearl River Estuary were analyzed. The surface sediments were dominated by silt and sandy silt. Sediment type controlled the spatial distributio...

2002
Joseph M. Prospero Dennis L. Savoie Richard Arimoto

[1] Increasing anthropogenic emissions from Asia, especially from regions undergoing rapid industrial development, have raised interest in the outflow of chemically and radiatively important gases and aerosols. Previous studies have shown that high concentrations of Asian pollution spread over a broad region of the North Pacific every spring. Here we report on studies of aerosol concentrations ...

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