1908 – First large scale use of chlorination by the Jersey City

In 1908, chlorine chemistry’s germ-defeating properties were demonstrated in drinking water in two very different settings in the United States. First, chlorination transformed animal feed water, drawn from a highly polluted stream in Chicago’s Union Stockyards, into a product that exceeded the purity of city water. Days later, in Jersey City, chlorinated water was supplied…

1906 – Pure Food and Drugs Act

The Food and Drug Administration is the oldest comprehensive consumer protection agency in the U. S. federal government. Its origins can be traced back to the appointment of Lewis Caleb Beck in the Patent Office around 1848 to carry out chemical analyses of agricultural products, a function that the newly created Department of Agriculture inherited…

1904 – Anemia in rural areas

In 1904 when Governor Hunt lobbied for funds to establish the first Puerto Rico Anemia Commission, thereby introducing a new administration in rural areas. The campaign appealed to many physicians pre-existing interest in regenerating rural jibaros and by implication, intervening in a variety of economic and political relationships that were compromised by the hurricane and…

1900 – Imhoff tank

The Imhoff tank obtained its name from its inventor, Dr. Karl Imhoff of Germany. The technology was developed in the Emscher District of Germany and patented in 1906 by Dr. Imhoff. The first plant was put into operation two years later. From the information available, it can be discerned that Imhoff Tanks were an acceptable…

1900 – Ringelmann chart

Municipalities began using the Ringelmann Chart to measure coal smoke in the early 1900s. The technique, developed by Maximillian Ringelmann of France in the late 1800s, measured the darkness of smoke with four different black grids on a white background, which was placed a distance away from smokestacks for a set time. Smoke control efforts…