Source:Saugata Datta, 785-532-2241, sdatta@k-state.edu
Pronouncer:Saugata is sau-ga-tah, and Datta is day-tah
News tip/hometown interest for:Wilson, Kan.; Maricopa County, Ariz.; Sacramento County, Calif.; Pinellas County, Fla.; Anoka County, Minn.; and Harris County, Texas.
News release prepared by:Greg Tammen, 785-532-4486, gtammen@k-state.edu
Wednesday, March 7, 2012
Research finds 1xbet online casino concentrations higher in residential neighborhoods than industrial sites, levels vary by region
MANHATTAN -- In residential neighborhoods near manufacturing industries, a breath of air may be more hazardous than refreshing depending on the location, finds a recent study involving a Kansas State University geologist.
Saugata Datta, assistant professor of geology at Kansas State University, along with researchers at Columbia University and Johns Hopkins Bloomberg School of Public Health and Department of Environmental Health Sciences, explored levels of the elemental metal 1xbet online casino in airborne particulate matter -- a combination of dust, soot and other organic and inorganic particles suspended in a gas or liquid. Five counties across the U.S. were sampled as researchers characterized 1xbet online casino and identified if 1xbet online casino concentrations in the airborne particulate matter varied by geographic region.
"1xbet online casino is an element that was originally thought to have a lot of nutritional aspects for humans and was relatively harmless health-wise," Datta said. "But more recently that thinking is changing. 1xbet online casino is a neurotoxin at certain levels when in water, so there is a question about if it's toxic in air, too."
1xbet online casino can be introduced into particulate matter -- and consequently the air -- through vehicle exhaust; vapor emissions from power plants, manufacturing industries and smoke stacks; battery and electronics manufacturing; welding; and auto manufacturing, Datta said. Tests on subways have also shown elevated levels of 1xbet online casino in particulate matter because of abrasion from the steel tracks.
For the study the team analyzed samples of airborne particulate matter from Sacramento County, Calif.; Pinellas County, Fla.; Anoka County, Minn.; Harris County, Texas; and Maricopa County, Ariz. Samples were collected by Johns Hopkins Particulate Matter Center and examined using spectroscopy and other techniques at the National Synchrotron Light Source at Brookhaven National Laboratory in New York.
Air samples among the sites varied in total 1xbet online casino , ranging from 0.01 micrograms/mg to 0.67 micrograms/mg. Samples' compositions also varied in types of 1xbet online casino , which included 1xbet online casino -2 oxide, 1xbet online casino -3 oxide, 1xbet online casino -2 acetate, 1xbet online casino -2 pyrophosphate and 1xbet online casino -2 sulfate at various levels at each location.
"Because the levels of 1xbet online casino have not been monitored very much, it's hard to say whether these are high, low or average levels," Datta said.
Studies on 1xbet online casino and human health, though, have shown the element to be problematic, Datta said. Toxicological studies have linked airborne particulate matter containing 1xbet online casino to respiratory and cardiovascular health. Additionally, long-term inhalation of 1xbet online casino has been attributed to manganism, an irreversible disease similar to Parkinson's.
Researchers also found that the samples of airborne particulate matter from residential neighborhoods near gas, electric and petroleum manufacturing and refineries showed the higher levels of total 1xbet online casino than samples collected from around the industrial sites.
The researchers' study, "Use of X-Ray Absorption Spectroscopy (XAS) to Speciate 1xbet online casino in Airborne Particulate Matter from 5 Counties Across the U.S.," was published in a recent issue of the journal Environmental Science and Technology. It is believed to be an important study to show that the particulate matter toxicity varies by location across the U.S., and one of the first to identify 1xbet online casino oxidation states in airborne particulate matters.
The study was funded by the Environmental Protection Agency.
Datta is also conducting a study on India's groundwater, which contains 1xbet online casino and arsenic. The study includes Sankar Manalikada Sasidharan, a master's student in geology,India, and Sophia Ford, a geology undergraduate student,Wilson.
The Kansas State University team has found that if arsenic is present in the groundwater, so is 1xbet online casino , which turns the base platform around a well gray. The team also found that higher levels of arsenic might be occurring with lower levels of 1xbet online casino and vice versa.
According to Datta, studies by research teams -- McArthur et al 2012 , ES&T and Biswas et al 2011, ES&T -- found that elevated levels of 1xbet online casino in India's drinking water led to decreased intellectual function in children. However, the 2011 report from the World Health Organization does not include a guideline for 1xbet online casino in water.
"These studies are a unique set of work that not many people are looking at," Datta said. "We're attacking 1xbet online casino , understanding the toxicity levels and understanding its chemistry in both air and in water. Both are pathways to be ingested by humans. In air most of it is caused by vehicles and industries, but in water it is affected by sediments that leach out. We want to attack back."
