Arsenic

Analysis: Public Health Implications Arsenic in drinking water is a world wide environmental public health threat. Anyone who drinks water contaminated with high amounts of arsenic can be effected by it, but developing countries are the ones who seem to suffer the most from arsenic poisoning. The united states and the World Health Organization (WHO) applied a strict standard for arsenic in drinking water to be at or below 0.01 mg/1 or 10 parts per billion, but unfortunately not all countries have the sources or follow the strict regulations set to protect the public from contaminated drinking water (US Environmental Protection Agency [EPA], 2015). Not only has arsenic effected an extensive amount of communities in the United States but,…

Toxicology Profile; Arsenic Basic Chemistry Introduction Arsenic is an abundant naturally occurring element with an atomic number of 33 and an atomic weight of 74.92 g. Although strictly a metalloid, arsenic is commonly referred to as a ‘heavy metal’ and can be found within group 4 of the periodic table. It should be noted that most of the other elements within this group have a biological role, but arsenic itself is a toxin (see section 1.x). Some additional chemical properties of elemental…

Arsenic contamination and possible remediation Victoria Reyes Texas A&M International University Abstract Arsenic can be found in many places on Earth. This includes from natural sources and as a by-product from different anthropogenic activities. The fact that arsenic can be found so commonly on Earth has lead to the contamination of several countries’ drinking water. This has put many people at risk for arsenic poisoning. There are many complications that come from the continuous ingestion…

We focused on arsenic exposure health risk analysis through oral ingestion and dermal absorption pathways of groundwater in the present study. The local residents in the study area were interviewed for basic information such as age, sex, body weight, health status, socio-economic status, food habits and drinking water sources. It was mentioned that the residents were using mainly groundwater for drinking and other purposes. The poverty, lack of awareness and having no effective alternatives were…

husband and assists in killing Peter. Secondly, the responsibility of a farmer’s wife consists of doing household work and cooking. This specifies that Mrs. McGregor must have cooked something poisonous for Peter. There were various clues such as a pie tin, pie filling and a pie being spotted near the McGregor’s farm. The clues indicated that Mrs. McGregor baked a pie for Peter that was filled with poisoning. Another clue showed Peter’s mouth covered in blue fillings indicating Peter being…

A pesticide is any substance or mixture of substances designed to prevent, destroy, or control pests. The use of pesticides has been dated back to the beginning of agriculture, which was about 10,000 years ago in the Fertile Crescent. However, pesticides have not always been an organic compound. The first generation of pesticides was composed of inorganic substances, such as sulfur, mercury, lead, arsenic (calcium arsenate and lead arsenate), and ash. The modern era of pesticides was developed…

understand what Arsenic is and why this element is in our drinking water. To begin with our introduction to Arsenic, we should all understand that it is a semi-metal element from the periodic table that we are mostly familiar with. It is odorless and has no type of specific taste to the human tongue. It is mostly sourced from natural deposits in the Earth, however, it’s also known to be sourced from agricultural and industrial practices all over the world. It is simply found in nature and in…

Arsenic trioxide was the dust outcome of gold extractions which happened during time period of 1948 to 2004 at the mine. According to the report 2010 it was mentioned that dust was captured as arsenic-rich gas and stored in underground Chambers. 2. How is the Giant Mine Remediation Project using technology to solve the arsenic trioxide…

and Ciminelli (1992) suggested that during alkaline oxidation of sulphides, there is a change from chemical (activation energy > 40 kJ/mol) to diffusion (activation energy < 40 kJ/mol) control as the rate determining step when temperature is above 100°C This led them to conclude that the oxidation is a mixed controlled reaction. Alkaline oxidation of arsenic bearing minerals Arsenopyrite (FeAsS) is the most abundant arsenic containing sulphide mineral. As such, it will be the focal point…

The problem revolves around the regulation of industrial arsenic output at an ASARCO copper smelting and glass manufacturing plant in Tacoma Washington. Arsenic is a known carcinogen with long term detrimental effects. Arsenic can also have adverse effects on plant and marine life, and can cause areas to become uninhabitable if it occupies the soil. The plant is the only one that uses a high arsenic core, which means that the arsenic output is quite high. This has affected several nearby areas,…