A new study published in Environmental Health Perspectives found high concentrations, including CO2 at concentrations higher than previously measured, of the greenhouse gas in cement.
“This is a first time that CO2 has been detected in cement at concentrations lower than previously reported,” lead author Andrew Gershon, an associate professor of environmental sciences at Ohio State University, said in a statement.
“We can see that the concentration of CO1 and CO2 is highest in the cement used in the manufacture of outdoor furniture, but this is not the case for the cement made for cementing.
This indicates that the cement industry is using CO2 to manufacture outdoor furniture.”
Previous research has found that CO3 is a major contributor to global warming, and cementing is among the most carbon intensive of the cementing industries.
In fact, it takes nearly half the carbon dioxide in the atmosphere to make a single kilogram of cement.
The new study was led by Gershyon and his colleague, Jessica Gans, both from Ohio State.
They examined data from CO2 and CO4 measured in cement made at a factory in Mexico City.
The researchers found that cement production in the country had been increasing by nearly 30 percent between 2011 and 2017.
But the CO2 concentrations in the concrete they tested were higher than the CO3 concentrations in cement used to manufacture furniture in the U.S. The cement used for furniture in Mexico is made from natural limestone, which can be a source of CO3.
But in the study, Gershons team also found that the CO1, CO2, and CO3 levels in the Mexican cement measured by their method were significantly higher than in the domestic cement.
CO2 levels were measured by using a technique called “conical counting,” which is known to be accurate.
This method involves collecting air bubbles that contain CO2 from a small area, then using a microscope to count how many bubbles are left.
Because CO2 can only be measured when air bubbles are in contact, it is difficult to detect the concentration changes in a specific part of the air.
The team then measured the levels of the two gases in cement by using the technique again.
“Our study is the first to quantify the concentration and trends in CO2-related air pollution in cement from Mexico and the U-shaped U. S. border, in addition to measuring CO2 trends in the urban environment,” Gershlons said.
“The data reveal a high concentration of the CO-18, which is a potent greenhouse gas.
The results show that cement industry activities in the border area are contributing to the CO emissions that contribute to climate change.
These findings also indicate that cement is a large contributor to air pollution and greenhouse gas emissions in the southern border areas of the U, S., and Mexico.”
The researchers also found evidence that the use of cement in outdoor furniture has increased in recent years.
“In addition to cement production, there are many other sources of cement-related emissions, including agricultural and industrial activities, the use in cement of the porous mineral limestone, and the use by cement companies of natural limestone,” the authors wrote.
“These environmental impacts are exacerbated by the fact that the soil and water in the interior of the border are often contaminated by dust and other materials that cause soil erosion, as well as by groundwater contamination.
The impact of these environmental problems on soil quality and the health of residents living in the United States, Mexico, and Canada are considerable.”
The new findings suggest that cement companies are using cement for outdoor furniture that is contaminated with CO2.
Gershalon said the results of the study are encouraging, but the next step will be to investigate the sources of the increased CO2 concentration in the materials used for outdoor seating.
“Future studies should examine whether cement in the outdoor seating used by U. s. manufacturers and the Mexican domestic market is also increasing in the same way as CO2,” he said.