نتایج جستجو برای: trace metal toxicity
تعداد نتایج: 373419 فیلتر نتایج به سال:
In recent years, heavy metal toxicity related to the use of traditional Chinese and Indian herbal medications has been reported in a number of countries, including Australia. Heavy metals such as lead or mercury may be introduced into herbal medications through contaminated soil or production techniques, or may be deliberately included as a therapeutic ingredient. Particularly when consumed ove...
Algae are a common component of freshwater ecosystems. The presence and abundance of these organisms has often been used as an indicator of water quality. In addition, algae such as Enteromorpha are able to accumulate pollutants, and have been used to monitor toxic trace metal pollution in aquatic environments [l]. In marine algae, heavy metal pollution has been shown to affect acyl-lipid compo...
Cadmium(Cd) is a non-essential heavy metal that highly toxic even at very low concentrations. Although Cd trace metal, when reached to high levels in agricultural soils, it can be easily absorbed by plants. Cadmium accumulation wheat (Triticum aestivum L.) and its subsequent transfer food chain an important problem worldwide. Bentonite material essentially composed montmorillonite related clay ...
The main mechanism of toxicity for fast-dissolving nanoparticles (NPs) is relatively simple as it originates from the intrinsic toxicity of their constituent elements rather than complicated surface reactivity. However, there is little information about the compared toxicity of fast-dissolving NP and its constituent ion, which is essential for understanding the mechanism of NP toxicity and the ...
This study is focused on evaluating the trace metal levels in water and tissues of two commercial fish species Arius thalassinus and Pennahia anea that were collected from Kapar and Mersing coastal waters. The concentrations of Fe, Zn, Al, As, Cd and Pb in these coastal waters and muscle, liver and gills tissues of the fishes were quantified. The relationship among the metal concentrations and ...
Metal mixture toxicity has been studied for decades. However, the results are not consistent, and thus ecological risk assessment and regulation of mixtures has been difficult. The objective of the present study was to use a systematic experimental design to characterize the toxicity of binary-metal mixture of Cu, Zn, and Ni to Pimephales promelas, typically to determine whether the effect of t...
Health risk assessment of the concentration of trace elements in cosmetic products in Sanandaj, Iran
This study was conducted to determine the concentrations of Ag, Cd, Cr, Cu, Fe, Ni, Pb, and Zn in the commonly used cosmetic products such as eyeshadows, eyeliners, and skin whitening creams in markets of Sanandaj city, Iran in 2014. In this study, 60 samples comprising of three different types of eyeshadows, eyeliners, and skin whitening creams were purchased randomly from different cosmetic s...
from flora of north west of iran, four contrasting species in term of frequency and coverage on heavy metal rich soils were selected to study physiological mechanisms for different tolerance of zn and cu toxicity in a hydroponic culture experiment. for study of zn toxicity, dactylis glomerata and secale monatum and for cu, cichorium intybus and astragalus echinops were selected. a clear differe...
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