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 evidently happening point and, as such, it really is found in the surroundings and in our foods and drinks. it could possibly also be desirous about aiding lifestyles methods. although, because of its toxicity, there's obstacle approximately its presence in our nutrition. 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 to be on the use of arsenic in drugs, from melanoma remedies to replacement cures equivalent to homeopathy. Following on from "Is Arsenic an Aphrodisiac?: The Sociochemistry of an Element", this ebook maintains the authors paintings in addressing the problems surrounding arsenic. it's a interesting learn for common readers because it unveils the truth of our publicity to arsenic in our day-by-day lives
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Additional info for Arsenic is everywhere: cause for concern?
8 Arsenic has known to be a poison since the Middle Ages, so why is the discovery of the problems associated with arsenic in drinking water relatively recent? 8 provide an interesting assessment. They point out that the presence of arsenic in water has been known of only since 1885. Following this, there were a few discoveries of natural arsenic contamination, notably in Argentina, Canada, New Zealand, Taiwan and Chile. The first link between arsenic in water and disease was identified in the 1920s in Argentina, but this relationship was not known outside the country until the end of the twentieth century.
The first link between arsenic in water and disease was identified in the 1920s in Argentina, but this relationship was not known outside the country until the end of the twentieth century. In the 1960s, it became apparent that arsenic was responsible for a variety of illnesses in Taiwan, and subsequent studies of the problem have become the basis for many drinking water regulations. However, at the time this information was not communicated internationally. Part of the challenge in making linkages between exposure to arsenic and disease is that it takes many years for the symptoms of chronic arsenic poisoning to develop.
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.