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Thomas Midgley Jr. (May 18, 1889 – November 2, 1944) was an American mechanical and chemical engineer.He played a major role in developing leaded gasoline (tetraethyl lead) and some of the first chlorofluorocarbons (CFCs), better known in the United States by the brand name Freon; both products were later banned from common use due to their harmful impact on human health and the environment.
On July 30, 2020, a report by UNICEF and Pure Earth revealed that lead poisoning is affecting children on a "massive and previously unknown scale". According to the report, one in three children, up to 800 million globally, have blood lead levels at or above 5 micrograms per decilitre (μg/dL), which is the commonly-accepted threshold beyond ...
Lead poisoning is especially hazardous to children under six years of age. [8] High levels of lead at this age can produce impaired neurological development that results in lifelong problems. A 1996 study showed 43% of children ages 1–5 in the Superfund area had blood lead concentrations above the threshold considered dangerous by federal ...
Residents had long been concerned about the air pollution from the plant that was found to have emitted lead, arsenic and other dangerous pollutants over decades. Lead is a potent neurotoxin that puts children at-risk for learning disabilities, lower IQs and other developmental problems who may have acquired lead poisoning from playing outdoors ...
The buyer must receive a pamphlet that details information regarding lead paint and its potential hazards. If there is lead paint in the house, or if there is an apparent danger of lead poisoning from lead paint in the house, then that information must be disclosed to the buyer. If so, the seller is then required to provide to the buyer any ...
In 2005, the city of Rochester enacted a rental housing-based lead law when the incidence of childhood lead poisoning was rising. [14] The new amendment to the housing code requires a lead inspection of rental properties built before 1978, with a focus on deteriorating paint within and outside the house. [14]
Tyson notes how lead does not naturally occur at Earth's surface but has been readily mined by humans (including the Roman Empire), and that lead is poisonous to humans. Patterson examined the levels of lead in the common environment and in deeper parts of the oceans and Antarctic ice, showing that lead had only been brought to the surface in ...
[13] [14] Of the 11 public rental housing estates with lead in water identified as of 10 September 2015, six were built by Yau Lee Construction Company, two by China State Construction Engineering (Hong Kong) Limited, two by Paul Y Engineering, and one by Shui on Group. [15] However, the plumbing in public estates may be built by a subcontractor.