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The pervasive spread of obstetric ultrasound technology around the world and the conflation of its use with creating a 'safe' pregnancy as well as the ability to see and determine features like the sex of the fetus affect the way in which pregnancy is experienced and conceptualised. [37]
Doppler ultrasonography is medical ultrasonography that employs the Doppler effect to perform imaging of the movement of tissues and body fluids (usually blood), [ 1][ 2] and their relative velocity to the probe. By calculating the frequency shift of a particular sample volume, for example, flow in an artery or a jet of blood flow over a heart ...
Black water (drink) Bottle and glass of black water. Black water is a type of bottled alkaline water containing fulvic acid (FvA) and other mineral or vitamin additives. The water is named for its dark and opaque appearance, owing to the addition of the FvA. [ 1] It has gained popularity as a health trend and status symbol.
The EPA, which regulates public drinking water, advises a safety level of below 70 parts per trillion for the two most-studied PFAS chemicals. This is considered voluntary guidance. This is ...
A 2019 study of hundreds of mothers in Canada — where 39% of residents have fluoridated water — found that a 1-mg increase in daily fluoride intake during pregnancy was associated with a 3.7 ...
Woman drinking bottled water. Scientists studying how tiny particles of plastic affect our everyday lives say that the amount of nanoplastics found in bottled water is between 10 to 100 times ...
The United States is the largest consumer market for bottled water in the world, followed by Mexico, China, and Brazil. [1] [obsolete source] In 1975, Americans rarely drank bottled water—just one gallon of bottled water per person per year on average. By 2005, it had grown to ~26 gallons (98.5 L) per person per year. [2]
A 2018 study found that tap water has fewer microplastics than bottled water, making it a likely better bet. Filtering your water is another possible way to decrease microplastics in drinking water.