Bioaccumulation of metals in an endemic ocypodid burrowing mud crab, Paratylodiplax blephariskios, was investigated contaminated mudflats the subtropical Richards Bay Harbour (RBH), South Africa. Following sampling water, sediment and crabs from three sites (Bhizolo, Mzingazi Coal Terminal) RBH during 2016/2017, tissue samples were oven dried for 48 hours, weighed digested advanced microwave di...

Abrasion dusts from three types of commercially available non-steel brake pads were generated by a brake dynamometer at disk temperatures of 200, 300 and 400 1C. The number concentration of the abrasion dusts and their aerodynamic diameters (Dp) were measured by using an aerodynamic particle sizer (APS) spectrometer with high temporal and size resolution. Simultaneously, the abrasion dusts were...

Contamination of the aquatic environment and living things with pollutants is increasing daily. Among these pollutants, heavy metals come to forefront regarding toxicological public health due their widespread use, toxicity, resistance degradation, as well accumulation biomagnification in food chain. The study aimed determine essential (Cr, Cu, Fe, Mn, Ni, Zn) non-essential (As, Al, Cd, Pb) met...

algae have been proven efficient biological vectors for heavy metal uptake. in order to further study their biosorption potential, two strains spirogyra sp. and spirulina sp. have been studied under different initial metal concentrations. in recent years, the biosorption processes have been studied extensively using microbial biomass as biosorbent for heavy metal ions removal. in these studies...

The aim of this paper was to determine the concentration heavy metals in dust samples by method analysis inductively coupled plasma optical emission spectrometry (ICP-OES) and assess degree pollution studied areas. subjected analytical analyzes were collected from vicinity industrial areas urban localities Jiu Valley, a monoindustrial area. main determined were: Cu, Zn, Pb, Ni, Cr, Co etc. Dust...

In this work, we report on the effects of doping SnO2 nanoparticles with Zn 2+ ions. A series of ~23nm sized Sn1xZnxO2 crystallite samples with 0 ≤ x ≤ 0.18 were synthesized using a forced hydrolysis method. Increasing dopant concentration caused systematic changes in the crystallite size, oxidation state of Sn, visible emission and band gap of SnO2 nanoparticles. X-ray Diffraction (XRD) studie...

the larsemann hills range is an ice-free oasis on the ingrid christensen coast of princess elizabeth land, east antarctica, which includes bharti island, fisher island, mcleod island, broknes peninsula, stornes peninsula, and several other islands, promontories, and nunataks. the larsemann hills is an ice-free area of approximately 50 km2, located halfway between the vestfold hills and the amer...

abstract aims: spices are sources of many bioactive compounds that can improve the taste of food as well as affecting the digestion and metabolism. along with that, they may also contain some substances as heavy metals, which have harmful effects on the body. the aim of present study was to assess the potential health risk of cr, cu, fe and zn contents of cardamom, curry powder and turmeric in ...