Download Arsenic is everywhere: cause for concern? by William R Cullen, Kenneth J Reimer PDF

By William R Cullen, Kenneth J Reimer

Arsenic is a obviously happening point and, as such, it truly is found in the surroundings and in our foods and drinks. it could possibly also be occupied with aiding lifestyles approaches. even if, as a result of its toxicity, there's quandary approximately its presence in our vitamin. This publication examines the genuine dangers and affects of arsenic in our lives. taking a look at arsenic and its compounds, this booklet explores the presence of arsenic in foodstuff and water, the necessity to make clear its toxicity, and present clinical and public misconceptions approximately arsenic. It additionally seems on the use of arsenic in medication, from melanoma remedies to replacement cures corresponding to homeopathy. Following on from "Is Arsenic an Aphrodisiac?: The Sociochemistry of an Element", this e-book maintains the authors paintings in addressing the problems surrounding arsenic. it's a attention-grabbing learn for common readers because it unveils the truth of our publicity to arsenic in our day-by-day lives

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Unfortunately, arsenic is often concentrated in the smaller particles. In the United States, there are an estimated 500 000 abandoned mines, so many communities are at risk of health problems caused by exposure to arsenic-contaminated dust. A 2008 study38 described how the health of the inhabitants of Randsburg, California, is being threatened by mine dust carried by the desert wind. Dust samples have been shown to contain up to 460 000 times the federal safe limit of arsenic. ” Naturally elevated arsenic concentrations in soil can also be a source of arsenic-contaminated dust.

The high-pressure injection of “fracking fluid” (primarily water mixed with proprietary chemicals) into a borehole creates cracks in the deep-rock formations, allowing fossil fuels to flow more freely. Studies of some private wells near fracking operations have shown that previously uncontaminated water now has arsenic concentrations that exceed the drinking water standard,7 but the processes involved are not well understood. 3 G  eographical Distribution of High Arsenic Concentrations in Water and Arsenic-related Health Effects Arsenic is colourless, odourless and tasteless, so its presence in drinking water is not obvious.

The standard was set at 200 ppb as a maximum allowable concentration. In 1963, the standard was updated to a lower concentration, 50 ppb. In 1993 it was lowered again, to 10 ppb, but several countries, including India and Bangladesh, have retained the 50 ppb standard. 12 The European Union adopted the 10 ppb value in 1998, but adoption in North America has been more recent. After much debate, the US reduced its standard from 50 ppb to 10 ppb in 2001, at an estimated cost for water treatment of $210 million.

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