A map from May 2013 outlining the then-location of the underground fire and buried nuclear waste at the landfill. The new temperature probes Mo. DNR is requesting are to be installed roughly along the edges of the landfill's narrow neck.
Updated at 5:40 p.m. to add Missouri Coalition for the Environment letter and comment from Republic Services.
The fire within the Bridgeton Landfill is still smoldering and now the Missouri Department of Natural Resources is ordering the company which operates the landfill to install additional temperature monitors to track the fire.
Originally published on Tue August 27, 2013 6:24 pm
Scientists in Sweden say they have confirmed a new, super-heavy element that was first proposed by Russian scientists in 2004. The element with the atomic number 115 has yet to be named.
In a press release, Lund University says a group of international scientists led by physicists from Lund University, made the element by shooting a beam of calcium, which has 20 protons, into a thin film of americium, which has 95 protons.
For less than a second, the new element had 115 protons.
According to the EPA, approximately 140,000 tons of ash containing heavy metals and other toxic substances contaminated Jefferson County wetlands, an unnamed tributary to Plattin Creek and a portion of Willers Lake.
Originally published on Mon August 19, 2013 9:31 am
Finding doctors to work in the countryside isn't easy.
About 20 percent the U.S. population lives in rural areas, but only about 11 percent of doctors practice there. The lure of cities and suburbs has been hard to overcome. And doctor shortages, already acute in some rural areas, are expected to get worse.
SLU students Joseph Wilkins, Patrick Walsh, Jackie Ringhausen and Tim Barbeau (standing, from left to right), and Valparaiso Univ. trainers Alex Kotsakis and Mark Spychala (crouching, left to right) stabilize the balloon as it fills with helium.
Credit (Art Chimes)
Each weather balloon carries a Styrofoam box like this one. It contains an ozonesonde, an instrument that measures ozone. The box also holds a radiosonde that measures temperature, humidity and air pressure.
Credit Art Chimes
Valparaiso University atmospheric chemist and meteorologist Gary Morris is helping to train the SLU students. Here, he tests out a parachute that will help slow the ozonesonde's fall after the balloon bursts somewhere around 100,000 feet above the ground.
Credit Art Chimes
This Google Earth map shows the trajectory of the weather balloon SLU launched on Thursday, August 8. The balloon burst north of Florissant, at an altitude of 116,447 feet. It landed in Alton, Illinois, about two and half hours after launch.
Credit Gary Morris, Valparaiso University
Data from the ozonesonde are transmitted through a large antenna to a radio receiver (right), then plotted out in real time on a laptop.
Credit Véronique LaCapra, St. Louis Public Radio
These profiles show ozone (in parts per billion by volume) with altitude. On August 8, rain washed ozone out of the air, decreasing levels near the ground. The EPA considers concentrations above 75 ppb to be hazardous to human health (red dotted line).