نتایج جستجو برای: lead and cadmium
تعداد نتایج: 16850888 فیلتر نتایج به سال:
There are contrary reports of association of lead and cadmium with the decline in semen quality. This study evaluates whether seminal lead (Pb) and cadmium (Cd) at environmental concentration are associated with altered semen quality. We conducted a study of healthy fertile and infertile men 20-43 years of age attending the Andrology Laboratory of Reproductive Biology Department for semen analy...
The levels of lead (Pb), cadmium (Cd), and nickel (Ni) in spinach (Spinacia oleracea), tomato (Lycopersicon esculentum) and cauliflower (Brassica oleracea) and in the rizosphere soils of the industrially polluted (Konabari, Gazipur; Keranigonj, Dhaka), and non-polluted (Bangladesh Agricultural Research Institute-BARI, Gazipur) areas were studied. Four samples from each area were collected durin...
marine ecosystem pollution is one of the important problems of today environment. in this study the existence of heavy metal in the namrood river, situated in firoozkooh in tehran province, iran has been investigated. the namrood river is located near firoozkooh route, and is affected by pollutant from tourist centers, entertainment, gas stations, nearby villages’ sewage systems, farming efflue...
background: the present study compared lethal concentrations (lc50-96 h) of cdcl2, crcl3, and pb (no3)2 between two scaled and scaleless freshwater fish species: cyprinus carpio (cyprinidae) and pangasius hypophthalmus (pangasiidae). methods: the experimental fishes were obtained from fish markets/ponds with average lengths and weights of approximately 11.68 ±1.92 and 9.8±1.9 cm, and 25.92±6.3 ...
Arsenic, cadmium and lead levels in tobacco filler and cigarette smoke were determined in a 568-sample worldwide survey. Median tobacco levels for arsenic, cadmium and lead were 237, 769 and 397 ng/g respectively, comparable to those previously reported albeit somewhat lower for lead and cadmium. Median mainstream smoke yields for arsenic, cadmium and lead were <3.75, 18.2, and <12.8 ng/cig. un...
A Comparison between Characterization and Biological Properties of Brazilian Fresh and Aged Propolis
OBJECTIVE As propolis is a highly valued bee product, we aimed to verify the quality of aged propolis, investigating their phenolic and flavonoid composition, levels of toxic metals, radical scavenging and antimicrobial activities. MATERIAL AND METHODS Samples of fresh and aged propolis of six different beekeepers, from the same geographical location, were investigated in terms of their pheno...
ABSTRACT: Regular consumption of seafood has been widely recommended by the authorities. However, some species especially benthic crustaceans accumulate heavy metals. In addition, the health risks associated to the consumption of such seafood might increase if the consumers use cooking methods that enhance the concentration of heavy metals. In this study, the effects of different cooking method...
بررسی میزان فلزات (کادمیوم، سرب، روی، مس، کروم، نیکل) در بعضی از انواع سرمه های موجود در بازار ایران
Background and purpose: Exposure to heavy metals can cause neurological, respiratory and cardiovascular disorders, imbalance of hormones, hair loss, infertility, and abortion. Kohl containing heavy metals can lead to such complications due to long-term contact with the lining of the eye. The aim of this study was to investigate the contamination level of Kohl by heavy metals (cadmium, zinc, nic...
this research was carried out in order to quantify throughfall (tf) and interception loss (i) and to compare the chemical composition of tf, i.e. lead (pb) and cadmium (cd) as well as electrical conductivity (ec) and ph beneath pinus eldarica and cupressus arizonica plantations and the open field rainfall. the research was accomplished in the chitgar forest park, a semi-arid polluted urban area...
background: given that the share of imported rice from india and pakistan, the current study was conducted to determine the concentration of lead, arsenic and cadmium in the rice imported from the two mentioned countries in comparison to iranian rice. methods: this cross-sectional study was conducted in 2014 in bandar abbas, using a completely randomized block design. five samples of each bra...
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