نتایج جستجو برای: igeo
تعداد نتایج: 351 فیلتر نتایج به سال:
The uncontrollable population growth is reaching Benin's rivers, especially the coastal lagoon, raising then thorny problem of pollution, which considerably accentuated by malevolent behavior populations. aim this paper to characterize degree contamination water and sediments lagoon in heavy metals (Cd, Cr, Zn, Cu, Pb Fe) through dosage with molecular absorption spectrophotometer type DR 3900. ...
Upper Cretaceous sedimentary rocks are widely exposed around Trabzon, Giresun and Gümüşhane in the eastern Pontides. The mainly composed of sandstones marls, thicknesses these range from 170 to 400 m. This paper focused on Late regions identify concentrations, sources, deposition environment conditions certain heavy metal(loid)s (Zn, Pb, Cu, Ni, As, Co, Mo V). Enrichment factor (EF), geo-accumu...
The current study includes determination of the concentrations lead (Pb) in 18 specimen Kirkuk city soil (K). Inductively Coupled Plasma - Mass Spectrometry (ICP-MS) technology has been used analysis samples laboratories Acme company Canada. Results chemical clarified a rise average (26.11 ppm) compared with international (10 and uncontaminated ones (15 ppm), its surface depth (30.2ppm) lower d...
Today, the growth of population, the excessive growth of cities and subsequently, the industries development in all parts of the planet are evident. Such development leads to the entrance of chemical martials with various compounds, particularly heavy metals, in aquatic ecosystems. In this study, the contamination of the sediments around the Mighan wetland basin with heavy metals such as lead, ...
مطالعه ژئوشیمیایی رسوبات حوضههای آبی مثل رودخانهها، مصبها و بستر دریا، میتواند گام موثری برای پیدا کردن منشا و ارزیابی مدل توزیع آلایندههای زیست محیطی در منطقه باشد. اگرچه رسوباتمحلنهاییتجمعفلزاتسنگیندرمحیطآبیهستند، اماتحتشرایطی خودمیتوانندبهعنوانمنبعآلودگیدرآب عملکنند. ورودفلزاتسنگینبهمنابعآبیازطرقمختلف،باعثایجاد مخاطراتیازقبیلمسمویت،سرطانزاییو…دربدنموجوداتزندهمیشود.برایمطالعهی چگونگ...
Many elements such as Arsenic (As), Cadmium (Cd), Copper (Cu), Chromium (Cr), Lead (Pb), Zinc (Zn), and others are major environmental problems due to their toxic nature, nonbiodegradability and accumulative behaviors. There are anthropogenic or geogenic sources that accumulate or rotate elements in sediments. Sediments served as excellent indicator of metal pollution in coastal environments as...
The development artisanal and small-scale gold mining in recent years Côte d'Ivoire could pose a risk to soils health of local communities. This study aimed at assessing the impacts on areas northen localities (Boundiali, Korhogo Tengrela) d’Ivoire, where those activities are accentuated. Field observation physico-chemical parameters analysis (potential hydrogen (pH), cation exchange capacity (...
Background: Industrial pollution of metals is a serious environmental concern. The presence Sarcheshmeh copper (Cu) mine and the possibility soil pollution, were primary motivations for evaluating heavy in this area. Methods: A total 171 10 sediment samples collected randomly from study area Cu, aluminum (Al), molybdenum (Mo), lead (Pb), cadmium (Cd) determination. USEPA method was used to acid...
Heavy metal contents in road dust have been an important indicator of heavy pollution arising from traffic-related activities. In this study, 108 samples were collected four locations Hong Kong, namely Kwai Hing (industrial area), Sau Mau Ping (residential Sai Kung and Tai Lam (rural over a one-year period analysed for zinc (Zn), nickel (Ni), copper (Cu), lead (Pb), chromium (Cr), cadmium (Cd),...
Abstract This research measures the lead, cadmium, copper, nickel, chromium, and arsenic in paddy fields Nganjuk Regency. Moreover, this identifies effect of these metals to environment their location. 105 topsoil samples were collected. The AAS was utilized ascertain elemental composition soil samples. Numerous pollution ecological risk indices, such as Igeo, PI, IPI, PLI, PERI, used analyze s...
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