Heavy water

Water Pollution and its Effects on Aquatic Life Charles Darwin, the father of evolutionary biology, states in his theory of evolution that only organisms better fit to survive in their environment will survive. Based on his theory and research, it can be concluded that challenges to the environment directly affect the organisms. Research shows that in particular water pollution; hospital wastewater and sewage wastewater, is shown to cause antibiotic-resistant microorganisms, excess nutrients such

Heavy metal contamination of soils has received considerable attention in the contemporary science. Application of biological processes for decontaminating the contaminated/polluted sites is a challenging task because heavy metals cannot be degraded and hence persist in the soil (Kidd et al., 2009; Lebeau et al., 2008; Maet al., 2011a; Rajkumar et al., 2010). Among heavy metals, Al (aluminium), Zn (zinc), Mn (manganese), Cr (chromium), Cu (copper), Cd (cadmium), Pb (lead) and Hg (mercury) are the

1. During the two decades following WWII, Caterpillar management focused on an aggressive growth strategy aimed at anchoring its position as a leading producer of construction machinery on a global scale. This strategy was directed by four underlying policies. (Exhibit 1) Caterpillar’s goal in competing in a global market was to seek new markets and increase its revenues. High R&D and high capital intensity of Caterpillar’s business, and homogenous customer needs favored the adoption

Change in oil saturation is represented as percent of original oil in place. After water flooding, the remaining oil saturation in the sand-pack was around 66%. Since the water saturation also effect the performance of the foam/PEF, all the tertiary recovery (foam/PEF) were performed around similar water saturation [41]. The weak foaming solutions resulted in a lower apparent viscosity of foam within porous media. For N85 surfactant solution, foam generation was unsuccessful up to 10 PV of SAG injections

The Length-Weight data obtained for the two studied species is within the range earlier reported by different researchers from various water bodies. FAO, (1985) stated that E. fimbriata can grow as long as 35cm but are usually between 20cm to 25cm. Kumolu-Johnson and Ndimele, (2010) and Olawusi-Peters et al., (2015)got the means of 14.36cm and 12.92cm for the same speciesin Ologe Lagoon, Lagos, Nigeria and Badagry Lagoon, Nigeria respectively which are lower than the mean Total Length observed in

From the data given of the measured amounts of cadmium given at each stations along Cruddy Creek, there were extremely higher concentration levels, 430 mg/kg dry weight total of cadmium from stations F, G, and H, upstream in comparison to a total combined amount of 315mg/kg dry weight of cadmium from stations A, B, C, D, E, and the reference sites. Thus, the following locations have been identified as potential sources responsible for the distribution of cadmium into Cruddy Creek; Atlas Batteries

Several metals have been tested for their role in fly ash toxicity. Although universally high toxicity has been attributed to vanadium [Bhatnagar, 2004 and Liu et al., 2005], nickel is generally not far behind [Salnikow et al., 2004 and Kurowska & Bal, 2010]. Nickel is a primary contributor to the inhalation cancer risk because of its relative high concentration in fly ash and the known carcinogenic potency of its sub-sulfide forms (Ni3S2) [Dreher et al., 1997]. Huang et al. (2015) suggest

When I was young and in school autism was something that I didn’t really think about. The closest I got to knowing someone with autism was watching Rain Man. But in 2007 I started to listen more about autism. I was 24 years old and I was pregnant with my first child. I read all I could about autism in my subscription to Parent magazine and talked with my doctor about the laundry list of questions that I had. She assured me that there was nothing to be concerned about and not to stress myself out

cadmium (Cd) is one of the components of the earth’s crust and it will remain present in several places or in different ecosystem on earth i.e., terrestrial, aquatic and others. Benavides et al. (2005) reported that cadmium is one of the most hazardous heavy metals in the atmosphere, soil and aquatic system which is finally going into our food chain and responsible for serious environmental problem and finally leading to the health hazards for the living organism, for instance, mutagenesis, lung cancer

Soil pollution involving the accumulation of excess heavy metals is toxic to humans and other mammalian life.1 The effect on animals can ac-cumulate in the food chains and instigate public health concerns in the future. Normally, the exposure due to food chain transfer is chronic, however, there are rare acute cases where direct ingestion of such pollutants is poisonous.2 Given the importance of the situation, the determination of toxic heavy metals in the environment is essential. The primary source