The effects of scratching on nearby water sources may be worse than previously thought, and new research shows that hydraulic fractures can alter not only groundwater but also groundwater composition.
The study, published Thursday, Science, First of all, it is the first to connect small fractions (salt) to the salt concentration in the production stages. Although high levels of salt are lower than the Environmental Protection Agency considers harmful, researchers have identified a strong link between new wells and changes in water quality, raising public health concerns.
Christian Louise, co-author of the study and professor at Booth University School of Chicago, states: “Our work provides the first large sample evidence that hydraulic fractures are related to water quality in many valleys in the United States. Business, in a news release.
The authors analyzed about 61,000 surface water measurements near 46,000 hydraulic debris wells in about 408 basins. They investigated the presence of the most abundant ions in bromide, chloride, strontium, and barium, in the fractional “flow” – a fluid that returns after fractional surgery. Their findings show a small but consistent increase in barium, chloride, and strontium, but not in bromide.
Luz acknowledged that the measurements were not shocking, but warned that measurements in rivers were too high. In addition, inspectors sometimes say it is a few kilometers downhill from the intersection site and the entire basin – which could increase as much as the county.
Using data from all the wells in such large areas, some showed no effect, while others did not appear, and the researchers ended up with these small, but statistically significant salt deposits.
High levels of barium in drinking water can lead to high blood pressure, chloride loss of water – the ability to generate electricity – and unpleasant taste water, as well as Potential hazards to water life, According to the Geological Survey of the United States.
They may have higher strontium levels Negative effects on bone growth.
“They are not clean either,” Louise told Hill.
The study identified the highest salt deposits in the early stages of oil and gas production, where the wells generate high flow rates. The researchers looked at the highest levels in the 10-mile-long and downhill control stations and measurements taken within a year of the panic attack.
Pietro Bonnetti, co-author of Navarra University in Spain, emphasized the need for water samples in order to fully understand the impact of the surface. Jovana Mi Lonlon, third co-author of Bristol University in the United Kingdom, called on policymakers to “think of more targeted water measurements” in a strategic position.
All three economists were interested in the effects of hydraulic fractures on water quality when examining violations of mandatory chemical disclosure laws in many states, such as Economist Hydraulic Fracture Operators in several states, such as Wyoming, Pennsylvania, and New York. 2010. However, they first need to establish a link between fractionation and groundwater quality, which has not yet been achieved, so they implemented their own statistical analysis.
The researchers will complete a follow-up study in about a month, but Luiz says “the current results suggest that practices are cleaner and less affected.”
The authors expressed their hope that their statistical approach could be applied to other potent chemicals that are more dangerous than high salt content – but they are rarely included in public databases. For example, recent documents show EEP. / Indicate the use of fluids Containing toxic chemicals forever.
If EPA conducts standard measurements on such toxic chemicals and if that information is available, Luiz said, he and his colleagues could easily conduct similar statistical analysis on those compounds.
“We can do this for any substance,” he said. You give me any related chemical, and we can implement this approach.
Updated – 2:54 p.m.