Friday, November 14, 2014

Harvey Wiley and the Poison Squad

We as a people assume that the food we order or buy is safe to eat. This faith in our food comes in part from the Food and Drug Administration and the laws and regulations that govern our food. Currently the Food and Drug Administration oversees the country’s food supply. Also, it is responsible for assuring the safety of human and veterinary drugs, medical devices, cosmetics and tobacco. The Food and Drug Administration (FDA) came into being with the passage of the 1906 Pure Food and Drugs Act. This law prohibited interstate commerce in misbranded food and drugs. Harvey Washington Wiley, chief chemist of the Department of Agriculture, had been the driving force behind this law and headed its enforcement. In the 1880s, when Wiley began his 50-year crusade for pure foods, America's marketplace was flooded with poor, often harmful products.

In 1902, Wiley was given a grant of $5,000 in order to study the safety of the chemical preservatives that were being added to foods. With this money, he assembled a troop of twelve men who became known as “The Poison Squad”. All of the men involved were were graduates of the civil service exam and were said to have high moral character and reliability. These men would meet in the basement of the Department of Agriculture (DOA), dressed in suite and tie, for the finest meals. The goal of the Poison Squad was to consume some of the most commonly used food additives in order to determine their effects. During each of the Poison Squad’s trials, the members would eat steadily increasing amounts of each additive, carefully tracking the impact that it had on their bodies. They would stop when they started to get sick. The members of the Poison Squad took an oath that, for a year, only allowed them to eat food prepared in the DOA kitchen. The goal was to

 “Investigate the character of food preservatives, coloring matters, and other substances added to foods, to determine their relation to digestion and to health, and to establish the principles which should guide their use."
-Wiley

The Poison Squad tested additives such as borax, sulfuric acid, saltpeter, formaldehyde and benzoic acid. These brave and iron stomached men suffered from many ailments including nausea, diarrhea, vomiting, liver damage, kidney damage, brain damage, and jaundice. The Poison Squad experiments got wide media coverage and caught public attention. It allowed people to question what they ate, and become open to change.

In 1907, the Poison Squad came to an end. In 1912 Wiley went to work for Good Housekeeping Magazine as the head of testing. It was during this time that the Good Housekeeping “Seal of Approval” became so desirable on a product Wiley also explored the effects of additive sugar and the negative effects of cigarettes. In 1921, an article of Wiley’s contributed to the passage of the Maternity Bill, which increased Federal funds for improved infant care and led to a reduction of the appalling infant mortality rate.

Quality food is important. Still today many preservatives are put in our food that we may not know the long term health effects of. Harvey Wiley started to examine the many questions that were proposed about preservatives and coloring in our food and opened up scientific and public knowledge on the subject.



Advertisements for many different remedies in the late 1800's and early 1900's



"The Poison Squad"


Harvey W. Wiley

http://www.fda.gov/aboutfda/whatwedo/history/default.htm
http://www.fdahistory.com/Clips_and_Trailers.html
http://www.blackcollegetv.net/VideoDetail.aspx?assetId=24712259746&pv=bio



Sunday, November 2, 2014

Radon

Radon is a colorless, odorless inert gas. It was discovered be the English physicist Ernest Rutherford in 1899. In 1900, German physicist Friedrich Ernst Dorn discovered the gas releasing properties of radium; radon gas. Radon gas easily penetrates most common materials, such as paper, plastics, concretes and wood due to its natural state as a single atom. Also, radon gas is soluble in water and organic solvents. These properties of radon gas are in part which makes it such a concern. Radon gas is radioactive and is released from the natural decay of uranium, thorium and radium. The two main types of radon that are prevalent in the human environment are radon-222 and radon-220. Radon-222 occurs from the decay of uranium where radon-220 occurs from the decay of thorium. Radon-222 is the form of radon that most readily -happens in the environment. The byproducts of the decay of radon-222 readily attach to the airborne particles and can easily be inhaled.

When humans are exposed to radon gas, the particles can damage cells with the body. Damage to the lungs is the most widely recognized association to radon exposure. Lung cancer is directly linked to radon gas. Each year, the United States has 15 to 22 thousand cases of lung cancer deaths directly linked to radon gas exposure each year. Radon gas has a quick rate of decay, which causes radioactive particles to be released. These are the particles which enter the body, mutate cells of the lungs, and lead to cancer. Overall, radon gas exposure is the second leading cause of lung cancer.

Radon gas is not a man made chemical product, but solely a naturally occurring product. It can be found in igneous rock and soil. There are a few scientific uses for radon gas such as initiating and influencing chemical reactions, however, there are no practical uses.

Radon gas causes major health issues, and is prevalent in the built environment. Houses and office buildings built on soil heavy in the elements uranium, thorium, and radon tend to have a higher affinity to radon gas. Also, basement levels and highly insulated areas have a higher radon level. Radon can be found in every building. It has been stated that radon levels higher than 4 picocuries per liter (pCi/L) is unsafe for living conditions. Radon can enter a building in many methods. Cracks in concrete, exposed soil in basements or crawlspaces, open drains to sump pumps, loose pipe fittings, and well water are some of the various ways that radon gas can enter a structure.

Due to the colorless, odorless, and tasteless nature of radon gas, it is impossible to tell the level of radon in a building without testing. If a high level of radon gas is present, the most reliable method of mitigation is known as sub slab suction. This places pipes under or in the foundation of a house to guide radon gas away. Other, less permanent, methods of reducing radon gas inside a building can be house pressurization, natural ventilation, heat recovery ventilation and sealing up cracks in a building's foundation.

Common Entry Points For Radon Gas

Mortalities by Cancer Type - 2010

 Natural Radon Levels - EPA



http://enhs.umn.edu/hazards/hazardssite/radon/radonprevention.html
http://www.epa.gov/radon/
http://www.radon.com/radon/radon_facts.html
http://www.cancer.gov/cancertopics/factsheet/Risk/radon

http://www.health.state.mn.us/divs/eh/indoorair/radon/