Water purification is a way to purify water, usually with CO2 as the primary contaminant.
But CO2 pollution has been linked to several other health issues, such as respiratory diseases, heart disease, and cancer.
Researchers are now looking at ways to reduce the effects of CO2 on humans and the environment.
In the study, published in the journal Nature Communications, researchers at the University of Illinois at Urbana-Champaign and the University in Lisbon in Portugal measured levels of CO02 and other pollutants in the water of about 10,000 people.
Then, the researchers measured their levels with a device called a water-soluble CO2 analyzer, which measures levels of pollutants in water.
The results were consistent with CO02 levels not being a major health concern, and the water had no harmful effects on the subjects’ respiratory and cardiovascular systems.
In contrast, the CO2 levels in drinking water of the people in the study had been linked with respiratory and cardiac disease.
“Water purifying systems can reduce the exposure to CO2, but we need to continue to develop solutions that are safe and efficient,” study researcher and co-author Christopher Stadler said in a statement.
“These systems can also reduce CO02 pollution, but not necessarily as much as people think.”
Water purifying solutions are also increasingly being tested for their effectiveness in reducing CO2 contamination in drinking and wastewater systems.
One promising alternative is a technique called a co-product, which can remove CO2 from water, and use it to produce other pollutants that can be used as cleaning agents, for example.
In fact, some researchers say the ability to use CO2-saturated CO2 to create other pollutants could be the future of water purifying technology.
“One thing that I really like about co-products is that they can be easily applied in a lab, so you don’t need to use a very specific chemical to purize it,” said study co-lead author Michael Coyle, a professor in the Department of Chemistry at U of I. “That way, if it works for a particular pollutant, it works in other places.”
Water can also be purified through a process called bioenergy, which uses CO2 and other organic compounds as a source of energy.
But bioenergy is expensive, and a coed at the water purifier facility in Lisbon is not happy about that.
The university said the cost of the technology is expected to be about $1,500.