It would probably be septic pollution like when you go to the bathroom and it gets flushed down into the ground below your house and contaminants the rocks that naturally filter ground water.
Atrazine is a herbicide or weed-killer, that is mainly used on corn. It is the most common chemical contamination in the ground water of the United States.
Direct contact
Water is the most common compound in sea water
Seepage from precipitation.
water
Atrazine is a herbicide or weed-killer, that is mainly used on corn. It is the most common chemical contamination in the ground water of the United States.
Ground water contamination.
Improper skin preparation is the most common cause of contamination when drawing blood cultures.
Everything that is in the ground can be in your well water. Iron is the world's most common mineral and is present in most well water.
contamination of food during preparation
Coughing sneezing and touching
Direct contact
The most common reason for food born illness is contamination of the food. If the food is exposed to things such as animal feces or workers handling the product with dirty hands, then there is a risk of contamination.
Lead contamination is a common environmental hazard. The most common cause of lead contamination is industrial use of lead. This includes manufacturing of lead-acid batteries, use of lead in manufacturing paint and water contamination through use of taps and pipes manufactured from lead. The population living close to industrial units that use lead for manufacturing their products are likely to have higher blood lead levels.
The most common meat for a taco is fish. Even though most people think its ground beef, the Taco originated from Spain and Mexico. Both of these places are mostly surrounded by water.
water is the most common solvent in the body
Water is the most common compound in sea water