Natural sources of mercury come from volcanoes, forest fires and the weathering of mercury-bearing rocks. However, this is small compared to the vast amount of mercury which is generated from anthropogenic sources (human activities), such as fossil fuel combustion, solid waste incineration, mining and smelting, manufacture of cement and the use of mercury cells in the commercial production of chlorine.[24] Of all the anthropogenic activities, by far the largest polluters are coal-fired power plants, which release approximately 50 tons of elemental mercury into the atmosphere each year via the effluent generated by the combustion process[5]. Once released, the mercury particulates fall back down to the ground and get absorbed by soils, where they eventually get into commercial farming crops and vegetables. Mercury also enters surface waters, such as lakes, rivers, wetlands, estuaries and the open ocean, where it is converted to organic mercury (mainly methyl mercury – CH3Hg+) by the action of anaerobic organisms. The methyl mercury biomagnifies up the aquatic food chain as it is passed from a lower food chain to a subsequently higher food chain level through feeding and eventually finds its way into the fish we eat.
| Mualliflar | Ayman Shalal Alwan, Fatima Haitham Kazem Ibrahim, Fatima Majed Farhan, Huda Sattar Khalaf |
|---|---|
| Jurnal | Innovative Multidisciplinary Journal of Applied Technology |
| Nashr sanasi | 2024-08-15 |
| Jild | 2 |
| Son | 7 |
| Betlar | 181-191 |
| Til | Ingliz |
To teach the general concepts of automation and automatic devices, to develop students' theoretical knowledge and skills in the general concepts of automation and automatic devices. Expand their knowledge of general…
In this research, a group of samples of a polymer to which silicon dioxide was added were prepared, with different concentrations, by the casting method. And then using a spectrophotometer to study the absorbance and…
The components of business processes include the creation of new products, sales, services, forecasting, human resource management and other activities aimed at improving operational efficiency.
In this research, we discussed the laser, how it was developed, when it was discovered, what are the capabilities of the laser, the conditions for the occurrence of the laser, the principle of its operation, the…
MRI findings after stereotaxic radiosurgery using the Gamma Knife. To evaluate the temporal evolution and appearance of a radiosurgical lesion at magnetic resonance (MR) imaging and the clinical response in patients…
Polyvinyl Alcohol (PVA), a synthetic polymer with unique properties, has garnered significant attention since its first commercialization in the 1930s. Research on PVA systems and its applications has continuously…
The study summarizes that crystalline optical fiber (PCF) is a new class of optical fibers based on the optical properties of crystals, as these fibers are considered part of a broader class, which are optical fibers…
laser is a device that projects a highly concentrated narrow beam of light which is amplified using stimulated radiation. Lasers have three properties: coherency, collimation and monochromatic properties. These three…
Carbon dioxide (CO2) laser ablative fractional resurfacing produces skin damage, with removal of the epidermis and variable portions of the dermis as well as associated residual heating resulting in new collagen…
In this research, we study the design of a device that produces sterilizers that are produced by preparing chlorine and hydrogen gas from potassium chloride and water in the presence of sodium hydroxide by electrolysis…
Innovative Multidisciplinary Journal of Applied Technology — barcha maqolalar